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Plan now for OQBN Pre-Conditioned Feeder Sales . . .

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In recent weeks, I discussed the consistent premiums that have been paid for calves consigned to the OQBN sales over the last 12 years. Oklahoma Quality Beef Network (OQBN) sales provide an opportunity for cattle producers to add value to 2018 calves. Weaning dates are fast approaching for fall sales.

For more information on OQBN sales; vac-45 protocol; enrollment and certification process and forms; and sale representatives, visit http://oqbn.okstate.edu/ .    

 

Below is a summary of 2018/2019 OQBN sales, locations and corresponding weaning dates.

Sale Date         Location                               Weaning Date

                        Oct. 25            Woodward                              Sep. 10

                        Nov. 6             OKC West, El Reno                   Sep. 22

                        Nov. 7             Cherokee                                 Sep. 23

                        Nov. 13           McAlester                               Sep. 29

                        Nov. 17           Blackwell                                Oct. 3

                        Nov. 29           Woodward                              Oct. 15

                        Dec. 4              OKC West, El Reno               Oct. 20

                        Feb. 19            McAlester                               Jan. 5

                        Apr. 16            McAlester                               Mar. 2

                        Jun. 11             McAlester                               Apr. 27

   

 Feeding weaned calves during a pre-conditioning program

Spring born calves have already been, or soon will be weaned to meet the 45-day requirement for value-added calf sales. A minimum of a 45-day weaning period is recommended to maximize the benefits of pre-conditioning. See the list of sale dates and appropriate weaning dates in the previous article. A balanced nutrition program during this period is critical to ensure profitability for the cow/calf producer and maximum immune system function during the stressful weaning period and later production phases.

Calves targeted for a VAC-45 sale (i.e. Oklahoma Quality Beef Network) should gain 1.5 to 2 pounds per head per day from weaning to marketing to greatly enhance the likelihood of profitability of the pre-conditioning program. Research has repeatedly shown that calves that begin eating soon after shipping or weaning will have reduced health issues and certainly gain weight more quickly and consistently. Low stress “fenceline weaning” has been shown to help calves start to eat sooner and begin weight gain more quickly than calves that are weaned away from the cows.

Providing a high quality ration that meets the nutritional needs of the young calves can be accomplished in a number of ways. Producers should download a copy of the Oklahoma Cooperative Extension Fact sheet ANSI-3031 to obtain several rations to be mixed for weaned calves. Rations are available for very young, lightweight calves as well as for 7 to 8 month old traditional 400 – 600 pound weaned calves. Some rations will include by-product feeds such as wheat-mids and dried corn distillers’ grains if these are available at a competitive price. The Fact sheet will also discuss other management tips for early weaning, traditional weaning, and receiving shipped-in stocker calves. The URL for this important fact sheet is http://pods.dasnr.okstate.edu/docushare/dsweb/Get/Document-1957/ANSI-3031web.pdf

Wheat Demonstration Plot Tour Slated

The public is invited to a wheat plot demonstration tour on Thursday, May 9 at 10 am. The plot is located on the Larry and Amyx James Farm. Directions are as follows:

  • Go west of Waurika on Hwy. 70 to the Waurika Cemetery
  • Go 6 miles south on N2780 Rd (“Noble Wray Rd.”)
  • Go 1.7 miles west on E2030 Rd.

The intent of the demonstration was to evaluate the effects of lime and phosphorus on wheat forage yields and, more specifically, to compare broadcast phosphorus applications with phosphorus banded in the seed row. In theory, because phosphorus is not mobile in the soil profile and because seed-row banded phosphorus can be a substitute for liming (in low pH soils), we wanted to determine if we can increase forage yields and reduce input costs by banding phosphorus in the seed-row, as opposed to applying lime and broadcasting phosphorus.

Brian Arnall, OSU State Extension Precision Nutrient Specialist, and Heath Sanders, OSU Extension Area Agronomist will be on hand to discuss the demonstration protocols and results, as well as to answer questions.

The tour will conclude by noon. All are invited, and bring a neighbor!

Calculating the pros and cons of Creep Feeding

Feed conversions of calves fed creep feeds have been quite variable to say the least.  Conversions of 5:1 or 5 pounds of grain consumed to 1 extra pound of calf weight are very rare and the optimum that can be expected when producers are using a “typical” high energy creep feed. Conversions may get as poor as 15:1 (or worse) in some situations. Therefore, it is obvious that several factors come in to play to determine the amount of creep feed that is consumed for each additional pound of gain.

Cows that give large amounts of milk to their calves will provide enough protein and energy to meet the growth potential of their calves. In that scenario, it is reasonable to assume that the feed conversion from creep feeding could be quite poor (10:1 or worse). If, however, the milk production of the cows is limited for any reason, then the added energy and protein from the creep feed provides needed nutrients to allow calves to reach closer to their genetic maximum capability for growth. Calves from poor milking cows may convert the creep feed at a rate of about 7 pounds of feed for each pound of additional calf weight. Poor milking can be a result of genetically low milk production or restricted nutritional status. Nutritional restriction due to drought situations often adversely affects milk production and therefore calf weaning weights. 

Shortened hay supplies and reduced standing forage due to drought or severe winter weather often set the stage for the best results from creep feeding. These feed conversion ratios become important when making the decision to buy and put out creep feed for spring born calves. As you are calculating the cost of creep feeds, remember to include the depreciation cost of the feeders and the delivery of the feed. Then of course, it is important to compare that cost of creep feeding to the realistic “value of added gain”.  

To calculate the value of added gain, determine the actual per head price of the calf after the added weight gain (due to the creep feed). Then subtract the price per head of the calf if it was sold at the lighter weight (not fed creep feed). Divide the difference in dollars by the amount of added weight. Although 500-pound steer calves may bring $1.80/lb at the market, and a 550-pound steer brings $1.71/lb, the value of added gain is about 80 cents per pound. Therefore, the estimated creep feeding cost per pound of added gain must be less than 80 cents for the practice to be projected to be profitable

Different ranching operations will come to different conclusions about the value of creep feeding. In fact, different conclusions may apply to different groups of cows within the same herd. Creep feeding may be more beneficial to calves from thin, young cows and less efficient to calves reared by mature cows that are in better body condition and producing more milk.

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Find out what is happening in OSU Extension at https://calendar.okstate.edu/oces/

Oklahoma State University, in compliance with Title VI and VII of the Civil Rights Act of 1964, Executive Order 11246 as amended, and Title IX of the Education Amendments of 1972 (Higher Education Act), the Americans with Disabilities Act of 1990, and other federal and state laws and regulations, does not discriminate on the basis of race, color, national origin, genetic information, sex, age, sexual orientation, gender identity, religion, disability, or status as a veteran, in any of its policies, practices or procedures.  This provision includes, but is not limited to admissions, employment, financial aid, and educational services. The Director of Equal Opportunity, 408 Whitehurst, OSU, Stillwater, OK 74078-1035; Phone 405-744-5371; email: eeo@okstate.edu has been designated to handle inquiries regarding non-discrimination policies.  Any person who believes that discriminatory practices have been engaged in based on gender may discuss his or her concerns and file informal or formal complaints of possible violations of Title IX with OSU’s Title IX Coordinator 405-744-9154.

Premiums from Preconditioning and Seasonal Price Swings . . .

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I wrote about the OQBN program and the associated premiums a few weeks ago but Scott Clawson, OSU Extension Area Ag Economist, more eloquently discusses these potential premiums, and premiums associated with seasonal price changes, in the following comments.

The time of year is upon us to begin planning how we will market our spring born calves. As we fix our eyes on the market’s movements and our checkbook balance, we start to figure out a strategy. As with every plan, we need to make sure we are accurate, conservative, and as thorough as possible. The easiest option is to sell directly off the cow, an option that you can see in every livestock auction in the fall. The discount that follows from this strategy is usually significant. The other option is to wean, “straighten out”, and market those cattle at least 45 days later. Backgrounding premiums and seasonal price changes are the two main positive price movements take place in that 45 plus days after weaning.

Backgrounding premiums exist and are being displayed in many areas as most local livestock auctions facilitate their own programs. In the graphic, we see the annual premiums from the Oklahoma Quality Beef Net-work (OQBN) sales. We see variation from year to year, but it’s obvious that the practice has value. Adding to this, there is variation amongst weights. Within a single year a 400# calf may yield a higher dollar per hundredweight premium for preconditioning than does a 600# calf. This stands to reason as the 400# bawling calf is more high risk than the heavier calf. The importance of this number is that it is a comparison to calves selling the same day. This is valuable to demonstrate the premium for that management practice, but it does not illustrate the seasonal price gains that take place over the typical preconditioning period.

Beefbasis.com is a great way to price forecast for the fall. Using this tool, we estimate that a 500# medium/large muscle score #1 weaned calf in mid-October would be $163.53/cwt. We make a modest gain calculation of 1.5#/day over a 60-day backgrounding program. This leaves us in mid-December with a 590# calf with an estimated value of $157.67/cwt. The second part of this equation is the additional value that we anticipate for the VAC-45 management practices we took on. Looking at the data from 2017 and previous years, we could use a conservative $9/cwt addition to our mid-December calf price ($157.67 + $9 = $166.67/cwt) for participating in OQBN. It is worth noting that the value of this 500# calf at this point (Mid-December) is $169.67. This compared with the estimated value of the same calf quality and weight in October displays the seasonal price improvement that we see on average.

Collectively, we could sell a bawling calf in mid-October that weighs 500# for $817.65. The other option is to hold off marketing for 60 days and participate in a VAC-45 program. This gives us the opportunity to capture a seasonal price improvement as well as a VAC-45 premium. The 590# calf in mid-December has an estimated value of $983.35. The difference is $165.70/hd, but this is not profit as no costs have been deducted. But it does provide a starting point to begin our budget. Individual costs per producer will be variable based on set up and resources. Also, each producer will assign a different value for labor, management, and death loss.

At the end of the day, there is risk involved in any ranch decision. Death loss, poor gains, price, and marketing risk are all lurking in the background. We can mitigate price risk by using price protection tools. However, leaning on the history of seasonal price moves and VAC-45 premiums, we have a chance to manufacture some extra profit.

Find out what’s happening on the Oklahoma Cooperative Extension Calendar at https://calendar.okstate.edu/oces/#/?i=2

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Oklahoma State University, in compliance with Title VI and VII of the Civil Rights Act of 1964, Executive Order 11246 as amended, and Title IX of the Education Amendments of 1972 (Higher Education Act), the Americans with Disabilities Act of 1990, and other federal and state laws and regulations, does not discriminate on the basis of race, color, national origin, genetic information, sex, age, sexual orientation, gender identity, religion, disability, or status as a veteran, in any of its policies, practices or procedures. This provision includes, but is not limited to admissions, employment, financial aid, and educational services. The Director of Equal Opportunity, 408 Whitehurst, OSU, Stillwater, OK 74078-1035; Phone 405-744-5371; email: eeo@okstate.eduhas been designated to handle inquiries regarding non-discrimination policies.  Any person who believes that discriminatory practices have been engaged in based on gender may discuss his or her concerns and file informal or formal complaints of possible violations of Title IX with OSU’s Title IX Coordinator 405-744-9154.

Is Your Mineral Program Sufficient?

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The proper balance of protein, energy, vitamins and all nutritionally important minerals is needed to make a successful nutrition program. Nutrient balance is the key to any effective nutrition program. 

Minerals and vitamins account for a very small proportion of daily intake in cow diets and can be overlooked due to misunderstanding the importance of adequate mineral nutrition and because of the cost of supplementation. However, proper mineral and vitamin nutrition contributes to a strong immune system, reproductive efficiency, and weight gain. Mineral deficiencies often go undetected since visible reductions in performance are not visible immediately. In fact, visible signs such as decreased bred back percentages may not show up till the following year. Even though forages may be green and lush providing adequate protein and energy, most all forages are deficient in one or more trace minerals. 

As our knowledge of minerals grows, we are finding out that minerals may limit production in better-managed herds to a much greater extent than generally recognized. The most limiting factor in an operation dictates productivity. In many operations, the mineral program is the most limiting factor. In many grass pastures, phosphorus is frequently the most limiting nutrient. Whereas, in small grain pastures such as wheat or oats, calcium and/or magnesium are frequently more limiting. 

Forage surveys have suggested that the trace minerals, copper and zinc, may be limiting nutrients in many situations. In national and Oklahoma forage surveys (~6,300 samples), the average copper and zinc levels were 6.2 and 23.4 ppm, respectively, as compared to suggested requirements of 10 and 30 ppm. In forage samples (1,113 samples) collected by Britt Hick, OSU Extension Area Livestock Specialist over the last several years in Oklahoma and Texas, only 14.6% provided adequate zinc and 39.4% were adequate in copper. Cattle cannot perform to their genetic potential even if you meet over 100% of their protein and energy needs but fail to meet their mineral needs.

These surveys suggest that nearly all forages are deficient in one or more minerals and that there is a widespread occurrence of deficient levels of copper and zinc for beef cattle grazing forages. This is further complicated by the fact that the availability of minerals may be affected by the distribution and form of mineral in the feedstuff, as well as interactions with other minerals or dietary components that inhibit absorption or utilization of a given mineral.  Research has shown that mineral deficiencies in ruminants fed forages often result from low availability rather than low concentration of a given mineral. Just because minerals can be found in plants does not mean they are available to the animal. Soil mineral level, soil pH, climatic and seasonal conditions, plant species and stage of plant maturity all factor into mineral content and bioavailability in forages. For these reasons, it is important that cattle be on a good, balanced mineral program to optimize performance. 

Feeding a trace mineralized salt block is not a complete mineral program. The high salt content (often 90 to almost 100 percent salt) limits consumption substantially. In addition, such salt blocks generally contain extremely low levels of trace minerals. Salt blocks are cheaper and if cattle only consume a very small amount of it that makes it even cheaper. However, they are not more economical because cutting costs by feeding trace-mineralized salt instead of a complete free-choice mineral supplement can cost you quite a bit in the long run. In summary, adequate minerals should always be available in any operation. Recognize the role minerals play in good health as well as fertility and growth. Frequently, the first thing a producer cuts from his program during tight times is the mineral program. Cutting the mineral program is never recommended since minerals are important in maintaining reproduction and performance.  Cutting minerals out of a feeding program may reduce cost in the short term but will reduce returns and effectively increase cost over the long term. Some researchers would suggest that marginal deficiencies in minerals probably are more costly to producers than are the added profits from feed additive such as ionophores.

Find out what’s happening on the Oklahoma Cooperative Extension Calendar at https://calendar.okstate.edu/oces/#/?i=2 

Follow me on Facebook @ https://www.facebook.com/leland.mcdaniel

Oklahoma State University, in compliance with Title VI and VII of the Civil Rights Act of 1964, Executive Order 11246 as amended, and Title IX of the Education Amendments of 1972 (Higher Education Act), the Americans with Disabilities Act of 1990, and other federal and state laws and regulations, does not discriminate on the basis of race, color, national origin, genetic information, sex, age, sexual orientation, gender identity, religion, disability, or status as a veteran, in any of its policies, practices or procedures. This provision includes, but is not limited to admissions, employment, financial aid, and educational services. The Director of Equal Opportunity, 408 Whitehurst, OSU, Stillwater, OK 74078-1035; Phone 405-744-5371; email: eeo@okstate.edu has been designated to handle inquiries regarding non-discrimination policies.  Any person who believes that discriminatory practices have been engaged in based on gender may discuss his or her concerns and file informal or formal complaints of possible violations of Title IX with OSU’s Title IX Coordinator 405-744-9154.

Vesicular Stomatitis

We have been notified of the first cases of Vesicular Stomatitis in the United States in over three years. VS is considered a Foreign Animal Disease and is a Reportable Disease in Oklahoma.

So far cases have been discovered in Kinney County and Tom Green County in Texas, Weld County in Colorado, and Sandoval County in New Mexico. Oklahoma has been fortunate to not have cases of VS during the last few outbreaks, but we have had cases in the past and it is very possible we can have them this year.

Vesicular stomatitis (VS) is a viral disease that primarily affects horses and cattle and occasionally swine, sheep, goats, llamas, and alpacas. VS has been confirmed only in the Western Hemisphere.  It is known to be an endemic disease in the warmer regions of North, Central, and South America, and outbreaks of the disease in other temperate geographic parts of the hemisphere occur sporadically. The Southwestern and Western United States have experienced a number of vesicular stomatitis outbreaks, the most recent and largest VS outbreak occurred in 2015. Outbreaks usually occur during the warmer months, often along waterways.  The time from exposure to the onset of clinical signs is 2-8 days.

VS is spread by insect vectors and direct contact with infected animals. Black flies, sand flies, and midges are the known vectors of this disease, but other insects may also be capable of transmission. Infected animals shed the virus from the lesions (blisters) they develop, so direct contact with infected animals or water, feed, buckets, and other fomites contaminated with saliva from infected animals can also transmit the disease. The virus can also be spread on shoes, clothing, hands, and contaminated equipment.

In affected livestock, the incubation period for vesicular stomatitis ranges from 2 to 8 days. Often, excessive salivation is the first sign of the disease. Close examination of the mouth initially reveals blanched and raised vesicles or blister-like lesions on the inner surfaces of the lips, gums, tongue, and/or dental pad. In addition, these blister-like lesions can form on the lips, nostrils, coronary band, prepuce, vulva, and teats. The blisters swell and break, which causes oral pain and discomfort and reluctance to eat or drink. Lameness and severe weight loss may follow. Body temperature may rise immediately before or at the same time lesions fi rst appear. Dairy cattle often suffer from teat lesions and subsequent mastitis; a severe drop in milk production commonly occurs. Some affected dairy cattle can appear to be normal with no clearly visible signs of illness but may only eat about half of their normal feed intake. If there are no complications such as secondary infection, affected animals typically recover in about 2 weeks.

In horses, vesicular lesions generally occur on the upper surface of the tongue, the lips, around nostrils, corners of the mouth, and gums. Lesions in horses may also be expressed as crusting scabs on the muzzle, lips, or ventral abdomen.

Affected pigs usually first show signs of lameness caused by foot lesions.

There is no specific treatment or cure for vesicular stomatitis. Good sanitation and quarantine practices on affected farms usually contain the infection. When a definite diagnosis is made on a farm, the following procedures are recommended:

Separate animals with lesions from healthy animals, preferably by stabling. Animals on pastures tend to be affected more frequently with this disease.

As a precautionary measure, do not move animals from premises affected by vesicular stomatitis until at least 21 days after lesions in the last affected animal have healed.

Implement on-farm insect control programs that include the elimination or reduction of insect breeding areas and the use of insecticide sprays or insecticide-treated ear tags on animals.

Use personal protective measures when handling affected animals to avoid human exposure to this disease.

Please notify any of the regulatory veterinarians in Oklahoma if you suspect a patient has this disease.

Find out what’s happening on the Oklahoma Cooperative Extension Calendar at https://calendar.okstate.edu/oces/#/?i=2 

Follow me on Facebook @ https://www.facebook.com/leland.mcdaniel

Oklahoma State University, in compliance with Title VI and VII of the Civil Rights Act of 1964, Executive Order 11246 as amended, and Title IX of the Education Amendments of 1972 (Higher Education Act), the Americans with Disabilities Act of 1990, and other federal and state laws and regulations, does not discriminate on the basis of race, color, national origin, genetic information, sex, age, sexual orientation, gender identity, religion, disability, or status as a veteran, in any of its policies, practices or procedures. This provision includes, but is not limited to admissions, employment, financial aid, and educational services. The Director of Equal Opportunity, 408 Whitehurst, OSU, Stillwater, OK 74078-1035; Phone 405-744-5371; email: eeo@okstate.edu has been designated to handle inquiries regarding non-discrimination policies.  Any person who believes that discriminatory practices have been engaged in based on gender may discuss his or her concerns and file informal or formal complaints of possible violations of Title IX with OSU’s Title IX Coordinator 405-744-9154.

OSU Extension Open House Draws Crowd

It was a way to show their appreciation.

The Jefferson County OSU Extension Office served chili dogs, soft drinks and cake. There were also prizes awarded.

See the video here….

Key Factors Affecting the Percentage of Cows Cycling at the Start of Breeding . . .

 The spring breeding season is upon us. May 1 is often the bull turnout date for many Oklahoma herds.  Cows that are cycling early in the breeding season are more likely to get bred this year, raise a heavier calf at weaning, and rebreed on time in future years.  

The most important factors that determine if, and when, a cow returns to cycling activity were analyzed by Kansas State University physiologists. Over a period of 7 years, Kansas State scientists used more than 3000 beef cows in estrous synchronization studies. As a part of these studies they determined which cows were cycling before the start of the breeding season both before and after synchronization treatments. They then looked at the previous data about each cow and determined the major factors that influenced the likelihood that she would have returned to heat by the start of the breeding season. The research indicated that three main factors were the most important determinants as to whether the cow would recycle before the breeding season began. Body condition, age of the cow, and the number of days since calving were the biggest influences on incidence of cycling activity before breeding. 

Body condition: Cows ranged in body condition score from 1 (extremely emaciated) to 7 (very fleshy). As body condition score increased the percentage of cows cycling increased in a linear fashion. The Kansas data reported that there was an 18% increase in percentage cycling for every 1 full condition score improvement. 

Age of the cow: The percentage of first calf two-year-olds cycling was about 10% less than mature cows that were having at least their second calf. The extra nutrient requirement for growth clearly limits the cycling activity at the beginning of the breeding season of two-year-olds. Also, two-year-olds are in the stage of life where the baby teeth are being replaced by permanent teeth. Some of these young cows have problems consuming roughage similar to “broken-mouth” older cows. This explains why many producers choose to breed replacement heifers ahead of the cow herd and therefore give them more days before the breeding season begins for mature cows.

Numbers of days since calving: Cycling activity was also influenced by the number of days since calving. For every 10 day interval since calving (from less than 50 days to 70 days) the percentage cycling increased by 7.5%. A short calving season is important because it allows a higher percentage of cows to be cycling by the start of the next breeding season.

Find out what’s happening on the Oklahoma Cooperative Extension Calendar at https://calendar.okstate.edu/oces/#/?i=2

Follow me on Facebook @ https://www.facebook.com/leland.mcdaniel

Oklahoma State University, in compliance with Title VI and VII of the Civil Rights Act of 1964, Executive Order 11246 as amended, and Title IX of the Education Amendments of 1972 (Higher Education Act), the Americans with Disabilities Act of 1990, and other federal and state laws and regulations, does not discriminate on the basis of race, color, national origin, genetic information, sex, age, sexual orientation, gender identity, religion, disability, or status as a veteran, in any of its policies, practices or procedures. This provision includes, but is not limited to admissions, employment, financial aid, and educational services. The Director of Equal Opportunity, 408 Whitehurst, OSU, Stillwater, OK 74078-1035; Phone 405-744-5371; email: eeo@okstate.edu has been designated to handle inquiries regarding non-discrimination policies.  Any person who believes that discriminatory practices have been engaged in based on gender may discuss his or her concerns and file informal or formal complaints of possible violations of Title IX with OSU’s Title IX Coordinator 405-744-9154.

Be Aware of Injection Sites When Working Calves

The spring calving season is winding down and the cows are chasing the flush of green grass. Calves will soon, if they are not already, be sticking their muzzles to the ground to supplement mother’s milk with the nutritious new forage growth. The months of April and May are traditionally the time when “spring round-ups” take place. This is the time that large and small cow/calf operations schedule the “working” of the calves. As the majority of the calves reach their second month of life, it is time to castrate the male calves (if this has not already been done) and immunize all of the calves to protect them against blackleg. In some situations, calves may be vaccinated for the respiratory diseases, i.e. IBR and BVD. Check with your large animal veterinarian about these immunizations. Animal husbandry and beef production comes with a couple inherent obligations. As beef producers we are not only obligated to provide for the health and well-being of our animals, but we are also obligated to ensure that what we produce, edible red protein, is a safe and wholesome product for our consumers.

Correct administration of any injection is a critical control point in beef production and animal health. There is a negative relationship between meat tenderness and injection sites, including injection sites that have no visible lesion. In fact, intramuscular (IM) injections, regardless of the product injected, may create permanent damage regardless of the age of the animal at the time of injection. Tenderness is reduced in a three-inch area surrounding the injection site. Moving the injection-site area to the neck stops damage to expensive steak cuts. Therefore, cow/calf producers should make certain that their family members, and other hired labor are sufficiently trained as to the proper location of the injections before the spring calf-working begins. 

Give injections according to label instructions. Subcutaneous (SQ) means under the skin, intramuscular (IM) means in the muscle. Some vaccines (according to the label instructions) allow the choice between intramuscular (IM) and subcutaneous (SQ). Always use subcutaneous (SQ) as the method of administration when permitted by the product’s label. Remember to “tent” the skin for SQ injections unless instructed otherwise by the manufacturer. Proper injection technique is just one of many components of the Beef Quality Assurance effort that has had a positive impact on the entire United States beef industry.

Another important aspect of the Beef Quality Assurance effort is keeping of accurate treatment records. Treatment records should include:

• Individual animal/group identification

• Date treated

• Product administered and manufacturer’s lot/serial number

• Dosage used

• Route and location of administration

• Earliest date animal(s) will have cleared withdrawal period

• Name of person administering the product

 Treatment records for cattle should be stored and kept for a minimum of three years after the animal(s) have been sold from your operation. 

Beef producers are encouraged to learn and practice Beef Quality Assurance Guidelines.  You can learn more about the Beef Quality Assurance program by going to the website: https://www.bqa.org/  The Beef Quality Assurance Manual can be downloaded from that site. Examples of treatment records to be kept and stored are available from the Beef Quality Assurance Manual in Section VIII.

Find out what’s happening on the Oklahoma Cooperative Extension Calendar at https://calendar.okstate.edu/oces/#/?i=2 

Follow me on Facebook @ https://www.facebook.com/leland.mcdaniel

Oklahoma State University, in compliance with Title VI and VII of the Civil Rights Act of 1964, Executive Order 11246 as amended, and Title IX of the Education Amendments of 1972 (Higher Education Act), the Americans with Disabilities Act of 1990, and other federal and state laws and regulations, does not discriminate on the basis of race, color, national origin, genetic information, sex, age, sexual orientation, gender identity, religion, disability, or status as a veteran, in any of its policies, practices or procedures. This provision includes, but is not limited to admissions, employment, financial aid, and educational services. The Director of Equal Opportunity, 408 Whitehurst, OSU, Stillwater, OK 74078-1035; Phone 405-744-5371; email: eeo@okstate.edu has been designated to handle inquiries regarding non-discrimination policies.  Any person who believes that discriminatory practices have been engaged in based on gender may discuss his or her concerns and file informal or formal complaints of possible violations of Title IX with OSU’s Title IX Coordinator 405-744-9154.

Lactating Cows Need More Protein and Energy . . .

Lactating Cows Need More Protein and Energy . . .

Private Applicator licenses that farmers and ranchers use to purchase and apply pesticides are renewed on 5-year rotations, and this is the last year of the current rotation. So, what does that mean for you?

For those producers who are currently licensed Private Applicators, their license expires at the end of this year (12/31/2018). There will be new materials and a new test available sometime after July 1 that we should be able to get for Private Applicators in order to renew their license. If a person is currently a licensed Private Applicator, they must wait until after July 1, when the new test and study materials are available, to renew their Private Applicator license.

According to ODAFF, if a person is currently not a licensed Private Applicator, they can take the test in the Private Applicator packets that we currently have at the OSU Extension Office and, if they pass the test, they will receive a Private Applicator license that is valid from now until the end of 2023.

The Role of Copper in Beef Cattle Reproduction

According to Dr. Keith Bailey, the director of the Oklahoma Animal Disease and Diagnostic Laboratory (OADDL), copper (Cu) deficiency has been a common finding in late term cattle abortions and stillbirths over the past 2 years. In a liver sample study from aborted fetuses in western Canada, magnesium, copper, and vitamin E were frequently identified as deficient in aborted fetuses. In addition to reproductive inefficiencies, low copper levels are also associated with poor performance and poor immune response. Copper is involved in many body functions such as hemoglobin formation, bone cell function, pigment production, hair, hoof and horn function, and animal growth. Since a review of all the health problems associated with copper in beef cattle would be too long for this writing, a review of copper deficiency related to reproductive performance will be addressed in this article.

Copper deficiency can be a primary deficiency or a secondary deficiency. An example of primary deficiency is when forages are low in copper. In Oklahoma most legumes such as alfalfa and clovers have adequate amounts of copper. However, most grasses in Oklahoma are deficient in the mineral. Secondary copper deficiency is more common. This is the result of another mineral(s) interfering with the uptake of copper. The most common minerals involved in this are iron, sulphur, and molybdenum. These elements will bind with copper which makes it unavailable to the body. Secondary copper deficiency may occur even if the diet has adequate amounts of copper.

Reproductive problems associated with copper deficiency in cattle are reduced fertility. This may present in many ways. Cattle may fail to conceive on their first breeding. In embryo transfer, embryonic survival was found to be lower. In some studies, overall pregnancy rates were reduced. Another problem with a low copper level is an alteration in reproductive behavior. In this case cows may show normal estrus behavior but do not ovulate. Also, future estrus cycles may be reduced. The effects of low copper levels on reproduction in cows are not consistent. They may be small or substantial. In bulls, evidence suggest that copper deficiency may cause problems in semen quality and decreased libido.

According to Dr. Dave Lalman, Professor and Extension Beef Cattle Specialist Oklahoma State University, producers can evaluate a mineral deficiency problem by reviewing their records. If the producer’s records indicate good pregnancy rates, weaning weights, and no major health problems, then their mineral supplementation program is probably fine. Even if their performance records are good, they may want to follow up with a mineral balance review with the assistance of their nutritionist, veterinarian, or extension educator. The review will evaluate the animal’s requirements and the minerals supplied by the forage, feed, and mineral supplement. Any deficiency should be addressed.

If copper deficiency is suspected in cattle, a producer needs to evaluate the animal’s copper level. This can be accomplished by a blood test or a liver biopsy. Blood levels of copper become low only after using all the copper in the liver. For this reason, blood samples are only useful in diagnosing advanced cases. Since copper is stored in the liver, a liver biopsy will give the best indications of copper status of the herd. A liver biopsy may be obtained from a slaughter animal or a veterinarian may obtain a biopsy specimen from a live animal.

Producers may provide copper to their cattle by variety of methods. Copper may be added to the feed or supplied in a salt/mineral mix. An injectable product is also availa-ble. Recently, a sustained release bolus has been approve for mineral supplementation. Producers that also run sheep need to keep in mind that mineral mixes produced for cattle will be toxic to sheep. For any questions on what methods or products will be best for meeting the copper needs in cattle, producers should consult with their nutritionist, veterinarian, or local county extension educator.

In review, copper deficiency may be a problem in cattle herds grazing native and improved grasses in Oklahoma. Producers should review their cattle records for any indications of health or reproductive problems. Any problems may indicate a need to evaluate the copper status of their cattle. For any additional information about copper deficiency in cattle, producers should contact their nutritionist, veterinarian, or local county educator.

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Nutritional Challenges of Post-Partum Beef Cows . . .

 Late winter and early spring is the most challenging time of the year for the nutrition of the spring-calving beef cows. Unless cool season grasses are available, this is a season where maintaining or gaining body condition on spring calving cows is really quite difficult. Warm season grasses have not yet begun to grow. Dormant grass (what little is left) is a low quality feed. Cows cannot, or will not, consume a large amount of standing dormant grass at this time year. If the only supplement being fed is a self-fed, self-limited protein source, the cows may become very deficient in energy. Remember, the instructions that accompany these self-fed supplements. They are to be fed along with free choice access to adequate quality forages. 

There is another factor that compounds the problem. A small amount of winter annual grasses may begin to grow in native pastures. These are the first tastes of green grass many cows have seen since last summer. The cows may try to forage these high moisture, low energy density grasses, in lieu of more energy dense hays or cubes. The sad result is the loss of body condition in early lactation beef cows just before the breeding season is about to begin. 

Body condition at the time of calving is the most important factor affecting rebreeding performance of normally managed beef cows. Nonetheless, condition changes after calving will have more subtle effects on rebreeding especially in cows that are in marginal body condition.  Body condition changes from the time the cow calves until she begins the breeding season can play a significant role in the rebreeding success story. This appears to be most important to those cows that calve in the marginal body condition score range of “4” or “5”. 

An Oklahoma trial (Wettemann, et al., 1987 Journal of Animal Sci., Suppl. 1:63). illustrates the vulnerability of cows that calve in the body condition score of 5. Two groups of cows began the winter feeding period in similar body condition and calved in very similar body condition (average body condition score = 5.3 to 5.4). However, after calving and before the breeding season began, one group was allowed to lose almost one full condition score. The other group of cows was fed adequately to maintain the body condition that they had prior to calving. The difference in rebreeding rate was dramatic (73% vs 94%). Again this illustrates that cows that calve in the body condition score of 5 are very vulnerable to weather and suckling intensity stresses and ranchers must use good nutritional strategies after calving to avoid disastrous rebreeding performance.

Cows should calve in moderate to good condition (scores of 5 or 6) to ensure good rebreeding efficiency. Ideally, cows should be maintaining condition during mid to late pregnancy and gaining during breeding. The goal of the management program should be to achieve these body conditions by making maximum use of the available forage resource. 

Continue feeding a source of energy, such as moderate to good quality grass hay free choice and/or high energy cubes until the warm season grasses grow enough to provide both the energy and protein that the lactating cows need. Yes, the feed is high-priced. But the cost of losing 21% of next year’s calf crop is even greater! Source:  Glen Selk, Oklahoma State University Emeritus Extension Animal Scientist; March 5 Cow/Calf Corner Newsletter.

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