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The Farm and Ranch Report

Buying vs. Raising Replacement Females

J.J. Jones, OSU Extension Area Ag Economist, offered the following article in the latest edition of the OSU S.E. Area News & Notes newsletter. 

It has been an age-old debate. Is it better to raise your replacement heifers or purchase them? The question brings a lot of opinions and arguments. There are both advantages and disadvantages for each. Producers must consider each of them before making their decision.

The first table below outlines some of the main advantages and disadvantages of raising versus buying replacement heifers. Some of these points will be more important than others for different producers. For example, the only advantage listed for raising replacements is that the producer knows the genetics of their heifers. This could be important for producers that have spent considerable effort in selecting for specific traits and attributes. But for a producer that has not been managing for specific genetic traits and has a common set of commercial cows this might not be as important.

Producers need to determine what is the most important for them and their operation and make the decision based on that criteria. For most producers, one of the more important criteria is cost. What is the cost of raising replacements versus buying them? The remainder of this article will focus on that very question.

The second table compares the costs associated with buying a 4-5 month bred cow and raising a heifer until her first calf is sold. It is assumed that the purchased cow will have two calves in the same time that it takes a weaned heifer to be bred, calve and wean that calf.

When comparing the returns and costs for the first two years of buying versus raising it shows that there is a slight cost advantage to raising replacements over buying them. Although, the results are close enough that one might consider it to be a wash. Keep in mind that no consideration was given to the possibility of calving difficulties, quality of first-born calf, poor breeding percentage, or poor growth rate. Everything is kept equal so just to consider the costs.

So, with the costs being about equal producers must consider the other ramifications of buying versus selling. Producers must consider their operations resources. Not only land availability, but also time availability and management. Producers need to consider the long-term effects on the operation’s cash flow from holding onto heifers instead of selling them. Can an operation withstand the decrease in revenue and be able to wait two years for the payoff? Producers will need to determine if they could improve the quality and production of their herd faster by purchasing replacements versus raising them from existing stock.

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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.

The Farm and Ranch Report

Livestock Risk Protection Insurance

Listening to Derrell Peel, OSU Extension Livestock Marketing Specialist, speak this past week, one might conclude that profit margins may be a little tighter in the coming year or two. According to Derrell, we may have reached a plateau on the national cow herd expansion and, subsequently, the potential for higher prices. If so, and IF is a big word, it would seem that management and marketing skills will become much more prominent in determining the profitability of the cattle enterprise; or, in a worst-case scenario, minimizing the down-side risks of market prices.

 With those thoughts in mind, I found the following comments, courtesy of OSU Extension Area Ag Economist Trent Milack, of particular interest.

Livestock Risk Protection is an insurance product that protects against declines in cattle prices. In the past, the main focus when raising cattle has been on the production side. Arguably, this is still true. However, price is at the forefront of many producer’s minds due to recent cattle market volatility.

Livestock Risk Protection can be purchased through a livestock insurance agent. This product insures between 1 and 1,000 head at a time with a total of 2,000 insurable head per year. The length of the insurance coverage varies from 13, 17, 21, 26, 30, 34, 39, 43, 47, or 52 weeks. Insurance can be purchased on calves, steers or heifers, which fall in the weight classes of Weight 1 (under 600 pounds) or Weight 2 (600-900 pounds).

Coverage levels vary between 70 percent and 100 percent of the expected ending value of the animals. The coverage options available vary each day so it is important for producers to check the RMA website https://public.rma.usda.gov/livestockreports/main.aspx daily to determine which coverage options are available. The ending values of the policy are based upon the weighted average prices reported in the CME Group Feeder Cattle Index. This index is used to settle the Feeder cattle contracts.

An indemnity payment is triggered if the actual ending value is lower than the coverage price. This has nothing to do with what the producer receives for the animals in the cash market when he sells the cattle. Indemnity payments will only occur if the price declines below the coverage level during the coverage period. Also, the producer must own the cattle and have taken delivery of them in order to qualify for the insurance coverage.

An example of the insurance coverage includes a producer who wants to use LRP to put a floor on his 2019 steer crop. He normally sells in the middle of March and his steers currently weigh 500 pounds. His herd consists of 100 predominately Angus cross steers.

The insurance is purchased in October so he needs 26 weeks of coverage. The option he selects includes feeder cattle steers for the 2019 crop year with an expected ending value of $136.794 per cwt. He chooses a 99% coverage level with a coverage price of $135.040 per cwt. The premium will be $6.889 per cwt. He expects the steers to gain 250 pounds over the course of this coverage. The premium is calculated by multiplying the final weight in cwt. by the premium cost per cwt. and the number of head covered. So 7.5 cwt. X $6.889 X 100 hd. = $5,166.75. RMA subsidizes 13 percent of the premium cost so the producer will be responsible to pay $5,166.75 X .87 = $4,495.07.

In the event that on March 31st the actual value is below the coverage price of $135.040 per cwt., an indemnity payment will be triggered. If prices fall to $120.00 cwt., the producer would be paid a premium in the following example. The price decline in this example is $135.040 – $120.00 = $15.04. The producer’s payment is 100 hd. X 7.5 cwt. X $15.04 = $11,280.00. This farmer received an indemnity payment of $11,280.00 on 100 steers for the cost of $44.95 per head. While there is no way to know what the actual ending price will be, this is an option to manage downside price risk.

Perils not covered include death, government seizure, and forced destruction. If one of these events do occur, the producer is required to notify their insurance agent within 72 hours of the occurrence of the loss. By giving notice of the loss, the producer will have the affected livestock included if an indemnity is payable on the endorsement. Not giving notice of the loss will result in the affected livestock being excluded from the indemnity calculation and the premium will not be refunded.

Some producers are aware of hedging and the ways that they can manage price risk in the futures markets. There are many reasons, however, why producers do not utilize this option. They may not have enough cattle to fill an entire contract, they may be reluctant to pay brokerage fees and margin calls, or they just do not understand the complicated world of futures markets and are uncomfortable with that risk management system. Livestock Risk Protection allows a producer to tailor the insurance coverage to the number of cattle he needs to insure at a price where he will remain profitable.

The application for Livestock Risk Protection can be filled out at any time, but insurance does not come attached until a specific endorsement is made. The insurance coverage will begin when a specific endorsement is made and approved by RMA.

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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.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….

Skid Steer Brush Control Considerations . . .

 With the recent increase in the popularity of skid steer attachments for brush removal, OSU has also seen an increase in the prevalence of questions related to chemically controlling re-sprouts that occur after the removal operation. While these pieces of equipment make the job easier, unfortunately, if used alone they also reduce the effectiveness of foliar herbicide applications on re-sprouting brush species in the near future.

While species such as Eastern redcedar can be fully controlled by cutting them below their green limbs, some species of trees will regrow from buds present on the crown or root. Examples of crown budding species are oak, hickory, elm and Osage orange, while commonly encountered root budding species are honey locust and persimmon. This indicates that while clipping these trees will temporarily remove them from the landscape, they will also re-sprout from existing rootstock and return in the very near future.

The shoots mirror the roots

In general agronomy terms, the shoots (aboveground plant portion) of an unmolested plant typically have similar mass to the roots. This basic of plant physiology allows for efficient uptake of foliar applied herbicides and subsequent translocation to the root system, achieving desired long-term control.

However, if we remove the top growth of a re-sprouting species, the ratio of leaf surface area in relation to root mass has been reduced drastically and sufficient root kill through a foliar application of herbicide is likely impossible. In addition, there is a disproportionately large root system now supplying the small “sprout” with all the elements needed for fast regrowth in the short term ( See Figure 1 below).

Over the next few years, although the re-sprout continues to grow extremely fast, the photosynthesis occurring in the leaves is insufficient to supply the energy needed by the large root mass and therefore a portion of the root system dies back to a sustainable level for the plant. It is at this point when foliar herbicide applications become an option on the table once more.

  For this reason, dealing with root or crown sprouting species necessitates these options in decreasing order of preference (combination of control level, time and economics):

1. Apply chemical to the freshly cut stump of re-sprouting tree species.

a. Usually mixed with fuel oil, apply within 30 minutes of cutting.

2. Use an approved product/method to control trees prior to mechanical removal.

a. This could include foliar sprays or basal treatments.

3. Apply a post-harvest soil active herbicide labeled for the offending species.

a. Relies on root uptake and therefore rainfall, not reliable on clay soils.

4. Allow at least 3-4 years of regrowth before using a foliar spray application.

a. Allows time for increased leaf area and decreased root mass.

5. Spray a broadcast treatment option for 2-3 years in a row on re-sprouts.

a. While effective, this method is costly.

So, if you’re contemplating using a skid steer for mechanical tree removal, they are a great option. However, remember to consider the growth habit of the tree species at hand before firing up. Identify what species are present and if they are notorious for re-sprouting. Determine the proper and least cost herbicide treatment for consistent root control. Some tree saw/shear options come with an onboard herbicide reservoir and pump, allowing you to treat the cut stump from the cab. (Source: Brian Pugh, OSU Extension Area Agronomist; June 2018 Timely Topics)

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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.

Spring vs. Fall Calving Seasons; or Both?

The debate over spring-calving or fall-calving seasons is a common topic in Oklahoma, and Southern Plains producers have alternatives for calving seasons that producers in more northern climes do not. Spring and fall are the seasons of choice.  Traditionally many herds have been bred to calve in February and March, to take advantage of summer forage greenup when the lactating cows and new calf crop most need high quality forage. Some fall calving seasons have arisen from elongated spring seasons or were initiated by “rolling over” females that failed to become pregnant in the spring breeding season.  Most fall-calving herds were created by design to take advantage of improved cow condition at calving, improved market conditions when calves and cull cows are sold, and less weather (heat) stress on cows and bulls during the breeding season. Due to our mild winters and ability to winter nursing cows reasonably efficiently, south-central Oklahoma is ideally situated to take advantage of a fall-calving system, and historical market trends make it appealing. However, it does not have to be an “either, or” scenario. Having two calving seasons spreads cash flow through the year and offers flexibility to respond to market signals or, in other words, allows producers options to avoid “putting all their eggs in one basket.”

Deciding on the use of one calving season or two calving seasons is a big first decision when commercial producers are choosing calving seasons.  Research has shown that buyers are willing to pay premiums for larger lot sizes of uniform calves. Consequently, two calving seasons may be more advantageous for herds of 80 cows or more.  To take full advantage of the economies of scale, a ranch needs to produce at least 20 steer calves in the same season to realize the price advantage associated with increased lot size.  Therefore, having forty cows in each season as a minimum seems to make some sense.

Using two seasons instead of just one can reduce bull costs a great deal.  Properly developed and cared-for bulls can be used in both the fall and the spring, therefore reducing the bull battery by about half.   If bulls are used twice per year, they must be given adequate nutrition to maintain body condition and should be required to pass a breeding soundness exam at least yearly.

Another small advantage to having two calving seasons is the capability of taking fall-born heifers and holding them another few months to go into the spring season and vice versa.  Because of this, replacement heifers are always 2 1/2 years at first calving instead of 2 years old.  These heifers should be more likely to breed early in the breeding season and have slightly less calving difficulty.  Research (Goodrich, et al., 1985 OSU Research Report) has shown that these differences are very small, therefore the cost of the other six months feed must be minimal to make this a paying proposition.  A disadvantage to breeding heifers to calve at 30 months is found when “open” heifers are culled.  They are too old to go the feedlot and produce high grading carcasses.  Therefore, the older heifers will be discounted (price per pound) when marketed after an unsuccessful attempt to get them bred.

Some producers like the dual calving seasons because of the spread of the marketing risk.  Having half of the calf crop sold at two different times allows for some smoothing of the cattle market roller coaster ride.  It is important that an adequate number of calves be born together to a make a marketable package that will not be discounted because of small lot size.

Labor requirements and increased pastures must also be considered.  More days of the calendar year are involved with checking cows and heifers during the calving season if split seasons are utilized.  Fall-calving often conflicts with wheat planting during September or October.  More pastures are required to keep cows in the same stage of production together when there are two calving seasons.  Non-lactating cows need less energy and protein than do lactating cows to maintain body condition.  Feeding both together would be very inefficient.

There are advantages and disadvantages to a split calving season.  Having a split calving season is NOT for everybody but may be an alternative for some Southern Plains producers. 

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Pesticide Applicator Testing Session Offered

The Oklahoma Department of Agriculture Food and Forestry will offer a local testing session, at the Carter County OSU Extension Office, on Tuesday, November 20. They will have tests available for all the pesticide applicator categories, so anyone needing to certify for the first time or recertify can be accommodated. Of particular interest are the categories that licenses expire this year (December 31), and thus must be recertified are:

1a – Agricultural Plant

A – Aerial

7b – Structural

10 – Demonstration & Research

Private Applicator

Applicator certification requires the successful completion of at least two examinations: The “Core” exam, consisting of knowledge required in all categories of certification; and the category exam itself. Those who are recertifying need only to take the category exam. A few of the categories require completion of a practical examination in conjunction with the Core and category exams for certification in that particular category.

Core exam – Focuses on equipment, safety, laws, and other knowledge pertaining to all categories. All persons wishing to become certified applicators must pass this exam in addition to the category exam(s).

Category exam – Written exam to be taken (along with the Core exam) by those wishing to become certified in that particular category.

Practical exam- The following categories require a practical examination in addition to the Core and the written exam.  These exams are performed at OSU in Stillwater:

(7A)- General Pest

(7B)- Structural Pest/Termite

(7C)- Fumigation

The practical exam must be taken within twelve (12) months of passing the written examination.  Failure to pass the practical within this period of time will require retaking the written exam.

Service Technician exam – To be taken by anyone wishing to qualify as a service technician.  The Core exam is not required to become a service technician. 

No appointment is necessary for any regularly scheduled test session. Applicants are required to provide some type of photo identification (e.g., a valid driver’s license) showing their name and identification number. Pencils and paper are provided for applicants at the testing sites. Applicants may use a hand-held calculator as long as the print-out tape is not used. An applicant must attain a satisfactory score (70% or above) to pass any written exam. 

After all the necessary examinations have been successfully completed, the certified applicator will be issued a certification card. This certification card is not a license to do pesticide applicator work; a pesticide applicator license must be obtained by any certified applicator wishing to do pesticide applicator work (commercial, non-commercial or consultant) or must be obtained by his/her employer.

A service technician shall be issued an identification card upon satisfactory completion of the service technician examination. 

Testing fees are $50 per exam. Those individuals who are certifying for the first time will pay $50 for the Core Exam and $50 for each category exam or $50 for Service Technicians. Those who are recertifying will pay $50 for the Category Exams only. 

Private Applicators should be advised that, although all current licenses expire this year, you need not to attend this testing session, as your exam is a take-home, open-book exam. The licenses are renewed on 5-year rotations so, if you recertify now, your license will be valid through December 31, 2023. You should also be aware that, as of now, the Private Applicator test is still a take-home exam but there is a discussion of making it a proctored exam in the future, meaning that you will have to attend a testing session and complete a closed-book exam.

The testing site, Carter County OSU Extension Office, is located at 25 A St. NW Ave., Suite 200. Our entrance is located next to the Election Board, at the new Carter County Administration building, formerly the Noble Energy building. You may park on the north side of the complex, on Broadway Ave., either in the lot on the east side of the Ardmoreite Building or the lot across the street (south) of the Ardmoreite Building. You will then need to walk around to the south side of the office complex to our entrance.

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.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.

Comparing Weaning Dates for Fall-Born Calves . . .

Producers with fall-calving herds have traditionally weaned the calves at 9 to 10 months of age. When forage growth is limited due to drought, questions arise about the feasibility of weaning the calves at an earlier date. The effect on the cow as well as weaning weight of the calf must be considered when the impact of the weaning date is considered.

Oklahoma State University animal scientists evaluated weaning dates of 158 Angus fall-calving cows over a 4 year period. Cows were allowed to nurse their calves for about 210 days (April Weaning) or 300 days (July Weaning). All cows calved in September or October and were weaned in mid-April (April Wean) or mid-July (July Wean). April-weaned young cows had greater re-breeding percentages (98.4% versus 89.3%) than July weaned young cows. However, there was no advantage in the re-breeding performance of April-weaned mature cows compared to July-weaned mature cows (90.2% versus 96.7%). April-weaned cows were heavier and fleshier at calving than July weaned cows.

Calves weaned in July were 90 days older and 204 pounds heavier (642 lb versus 438 lb) when weaned than were the April-weaned calves. The April-weaned calves were allowed to graze native pasture after wean-ing and weighed 607 pounds in mid-July. For most years, it appears more advantageous to delay weaning of calves born to cows 4 years or older to July while maintaining April weaning for cows 3 years of age or younger.

Drought conditions (or burned pastures) in some areas of the Southern Plains very well may suggest the earlier weaning date could be considered for all ages of cows. In those areas of Oklahoma that have received adequate rainfall this winter and spring, the answer may be different. In those regions, the prospects of good forage growth would suggest that the later weaning date would result in heavier sale weights of calves and still excellent re-breeding of adult cows. Source: Hudson and co-workers. Journal of Anim. Sci. 2010 vol. 88:1577.

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 

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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.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.

Udder Soundness Affects Weaning Weights & Calf Health

Udder soundness and teat quality are one of my pet peeves, and it seems to me that the problem has become much worse over the last 30 years or so. I can only assume that our unending pursuit of increased milking ability, in our cow herds, has facilitated this situation, to a large degree. Dr. Glenn Selk, OSU Professor Emeritus, Oklahoma State University, wrote an excellent article in the most recent Oklahoma Cooperative Extension Services Cow/Calf Corner Newsletter.

Every year at “preg” checking time, ranchers evaluate cows and make decisions as which to remove from the herd. One criteria that should be examined to cull cows is udder quality. Beef cattle producers are not as likely to think about udder health and shape as are dairy producers, but this attribute affects cow productivity and should be considered. It may be easier to be accurate in your culling decisions, if you examine the udder soundness of the cows shortly after calving when they are at the peak of lactation and the udder is as large as at any time. Take time now during the peak of lactation to write down which spring-calving cows have unsound udders.  Record the cow numbers of those to be culled next fall due to unsound udders. Their heifer calves would be undesirable prospects to become replacement heifers for your herd.

The heritability estimates of udder characteristics are variable. A study done in Brahman cattle for the heritability of udder soundness indicated that progress could be made by selecting for udder soundness. They reported that 25% of the differences in udder soundness was due to genetics. Beef Improvement Federation Guidelines have suggested that the heritability of udder soundness in beef cattle is estimated at .16 to .22 which means that some progress can be made by selecting against unsound udders.

Recent research at Kansas State University (Bradford, 2014 KSU Cattlemen’s Day) with large numbers of Hereford data has given even greater hope that improvement in udder quality can be made. They found heritabilities of .32 for overall udder score, .31 for suspension, and .28 for teat size. Additionally, genetic correlations between traits were strong (.83). This means that selection for one trait (teat size or suspension) will result in improvement in the other trait.

An experiment conducted at the OSU Range Cow Research Center near Stillwater gives some indication as to the impact of mastitis on beef cow performance. They found that cows with one or two dry quarters had calves with severely reduced weaning weights (50 – 60 pounds) compared to cows with no dry quarters. This represents a sizeable economic loss at weaning time. 

An evaluation system for udder soundness has been developed and used by some breeds.  Teat shape and udder suspension are the two primary characteristics evaluated. Below are photos of unsound udders.

The first photo is an example of a cow with mastitic funnel-shaped teats. New-born calves will find it difficult to nurse such a teat, and some may be so severely infected that they become unproductive (dry). The second photo is an example of a weakened suspensory ligament. This udder may cause the teats to be very low to the ground and be difficult for the newborn calf to find to receive the colostrum that it needs in a timely manner.

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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.

Why Hay Quality Matters and Have You Tested?

By and large, the 2019 hay crop is, as they say, “in the barn.” Meeting the supplemental protein needs for the cows and replacement heifers consuming that forage must be done properly and economically. Protein is a vital nutrient for the ruminant because protein is necessary for the multiplication of, and the feed digestion by the microbes in the rumen. The microbial population in the rumen of cows is largely responsible for digesting cellulose in standing or harvested forages.

Higher quality forages are more readily digested in the rumen and have higher rate of passage through the digestive tract of the cow than do lower quality roughages. Therefore, the cow can consume more of the high-quality forage on a daily basis and receives more total digestible nutrients (TDN) from each pound of feed consumed. If adequate protein is available to cows consuming lower quality roughages, then the rate of passage and the digestibility is improved compared to cows that are inadequately supplemented while consuming the same low-quality forage.

Producers may be surprised to know the large differences in protein supplement needed to meet the cow’s requirement depending on the quality of forage that makes up most of the diet. Below is a table of the pounds of 40% protein supplement needed daily for moderate-sized (1100 pound) beef cows in different stages of production and consuming differing quality of grass hays. Larger cows and cows that produce above average milk production will consume more forage and need even more supplement to match their requirements. The table above describes the protein-only needs of the beef cow. Energy deficiency may occur and result in some weight and body condition loss. Energy needs will be increased if cows are already in thin body condition and must be improved before calving next spring. Also, winter weather conditions can greatly increase energy needs. In many instances, the energy requirements can be met with lower protein supplements (for example 20% protein range supplements) fed at about twice the rate as noted in the table above.

Forage quality differences are important, whether the supplement choice is high protein (40%) or lower protein (20% protein). Learn about testing hay for protein content by visiting with your OSU County Extension Office or downloading Oklahoma Cooperative Extension Fact Sheet PSS- 2589 Collecting Forage Samples for Analysis.

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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.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.

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