Tag Archives: Reproduction

Reproductive Failure in the Beef Herd: Causes, Effects and When to Intervene – Webinar December 2nd

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Reproductive failure can pose a significant threat for cow-calf operations, particularly when an issue affects a large portion of the cow herd such as early pregnancy loss. This panel of veterinarians will share case studies of reproductive wrecks on beef operations and how these operations overcame and solved the problem.

Registering on your smartphone? After you click ‘I am not a robot’, scroll up until you find the task to complete.

When
Wednesday, December 2nd at 7:00 pm MT

  • 6:00pm in BC
  • 7:00pm in AB
  • 8:00pm in SK and MB
  • 9:00pm in ON and QC
  • 10:00pm in NS, NB and PEI

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Think you have a closed herd? Think again.

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This is a guest post written by Karin Schmid, Research and Production Manager with the Alberta Beef Producers.

 A surprising proportion of producers believe they run a closed herd.  The 2017 Western Canadian Cow-Calf Survey requested reasons why certain management practices were not employed on individual operations.  Out of the approximately 25% of respondents who did not vaccinate their cows and heifers against reproductive diseases such as IBR and BVD, over half of those reported that their reason for forgoing those vaccinations was because they had a closed herd.  Similarly, over 20% of respondents did not vaccinate their calves against respiratory disease (BRD), and 30% of those indicated having a closed herd was their main reason for not vaccinating.

This high rate of mistaken belief in having a closed herd is not just a Canadian phenomenon.  A 2019 UK survey of almost 1000 producers indicated that over half of those who stated they ran a closed herd had purchased cattle within the past two years.  According to the US Department of Agriculture’s National Animal Health Monitoring System (NAHMS) 2007-08 survey, over 88% of operations with 50 head or more brought new cattle onto their operations in the past three years. Continue reading →

Unintended Consequences

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This article written by Dr. Reynold Bergen, BCRC Science Director, originally appeared in the October 2019 issue of Canadian Cattlemen magazine and is reprinted on the BCRC Blog with permission of the publisher.

I once spent a summer working for canola breeders. Some used traditional selection, while others were experimenting with transgenics. One traditionalist was known to say “sticking a new gene into a plant and expecting it to grow better is like throwing a new gear into a watch and expecting it to keep better time. It’ll probably get worse”. This article isn’t about canola or genetics, but it is about time and unintended consequences. Specifically, it’s about the timing of the breeding and calving seasons.

Canada’s cow-calf sector has moved towards fewer, larger beef cow herds. Calving later, on pasture has been a widely adopted strategy allowing producers to expand their cow herds without a proportional increase in equipment, labor, and facilities. When John Basarab led Alberta’s Cow-Calf Audits in the late 1980’s and late 90’s, breeding often started in May and calving started in late February. In contrast, 70% of the producers responding to the 2017 Western Canadian Cow-Calf Survey started breeding in June or July to calve in March or April.

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Replacement heifers – Money, management, and momentum

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Photo submitted by Brian Trueman

Do you raise your own heifers? Or do you prefer to purchase your replacements? Regardless of your choice, developing heifers costs money and requires careful management.

Ideally, replacement heifers will go on to become long-term producers in the herd sothoughtful selection is critical. “Each producer has different resources and goals when they make the decision of whether they want to buy or retain heifers,” said Kathy Larson, a University of Saskatchewan economist. “Part of that decision needs to involve cost of production,” she advised during a recent BCRC webinar.

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Top findings about adoption of beneficial practices on Canadian cow-calf operations

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Sometimes it can be hard to know where you’re going if you don’t look at where you’ve been. For decades, research and extension organizations have promoted many practices to beef cattle operators with the goals of improving production, product safety, and ultimately profitability. Recently, the Beef Cattle Research Council (BCRC) and Canfax Research Services created a comprehensive report outlining the adoption of recommended beef management practices over time and across Canada.

The analysis used a broad lens to examine all cow-calf practices from feeding methods to manure management, calving cows to retaining heifers, pasture management to feed testing, and everything in between. Recent data from regional cow-calf surveys and research studies were compared to foundational producer survey and Statistics Canada information dating as far back as thirty-five years.

The first of its kind, this analysis:

  • Consolidated benchmarks for parameters such as conception rates, weaning weights, death loss, and calving season length;
  • Compared current practices and highlighted long-term trends across Canada where possible;
  • Identified gaps in adoption and potential extension opportunities;
  • Recognized and addressed barriers for adoption.

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Costs of siring calves: artificial insemination compared to natural service

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As the breeding season approaches, some producers will consider using artificial insemination (AI) and estrous synchronization in their breeding herd; others will not because of the extra time, labour and management required in an AI program, the perceived costs of implementing AI, or they are unaware of the potential advantages of AI.

In this article, we will review economic analysis that compares the costs and benefits of fixed-time AI and natural service and discuss how recent changes in breeding bull and butcher bull prices affect the cost of breeding programs. We will also look at a recent study that addresses the question of how many clean-up bulls are needed in a fixed-time AI program.

Economic Benefits and Hurdles of Using Fixed-Time AI

Compared to natural service, an obvious potential advantage of fixed time AI is to have more calves born in the first 21 days of the calving season, which allows producers to market larger, more uniform groups of calves. Some studies have shown as much as a 10 to 17 day calf age advantage and 20 to 44 lbs more per calf at weaning as a result of estrous synchronization (Johnson and Chenoweth). Despite the extra costs of an AI program , fixed-time AI is estimated to have a net benefit of $11,110 for a 40-cow herd compared to natural service because of improved conception and wean rates, as well as heavier weaning weights (Lardner et al., 2015). Continue reading →

Preventing reproductive wrecks: Webinar January 23

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Update: Missed the webinar? Find the recording and check for future webinars on our Webinars page: http://www.beefresearch.ca/resources/webinars.cfm

Even small changes in the open rates of cows can have a major economic impact. Join this webinar for tips to increase and maintain high pregnancy rates with information on everything from mineral intake to disease management.

This webinar will begin with a brief presentation about the Certified Sustainable Beef Framework by the Canadian Roundtable for Sustainable Beef (CRSB).

When


Tuesday, January 23 at 7:00 pm MT

  • 6:00pm in BC
  • 7:00pm in AB
  • 8:00pm in SK and MB
  • 9:00pm in ON and QC
  • 10:00pm in NS, NB and PEI 

Interested but aren’t available that evening?
Register anyway! This webinar will be recorded and posted online at a later date. All registrants will receive a link to the recording and additional learning resources. By attending the live event, you’ll have the opportunity to interact and ask questions too.

Register now



Find and register for more BCRC webinars here.

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If you plan to join the webinar using your tablet or mobile device, you will need to  Continue reading →

New resources added to BodyConditionScoring.ca help cow-calf producers increase profits

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cattle feed costs calculator to add body condition
New resources have been added to www.BodyConditionScoring.ca to help cow-calf producers make decisions about managing body condition in their cow herd. Cattle producers know that fat cover plays a crucial role in the reproduction, health and welfare of their animals. These new resources will help guide them when modifying practices on farm to better manage body condition and increase their herds’ productivity and profitability.

The new feed cost calculator gives producers the opportunity to compare the extra expense of adding condition to thin cows in the Fall to the extra value gained by the resulting larger calf crop. The calculator is Continue reading →

Better Tests for Trich and Vibrio

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This article written by Dr. Reynold Bergen, BCRC Science Director, originally appeared in the May 2014 issue of Canadian Cattlemen magazine and is reprinted on the BCRC Blog with permission of the publisher.

Trichomoniasis (trich, or “trick”) and bovine genital campylobacteriosis (vibrio) are venereal diseases that cause early embryonic death, repeat breeding, large numbers of open cows at the end of the breeding season, an extended calving season, and enormous economic losses. The microbes that cause trich and vibrio live in the reproductive tracts of infected cattle, but don’t enter the tissues or the bloodstream. Cows and heifers can clear these infections but bulls generally can’t, because the microbes live in the folds of the foreskin. These diseases are difficult to treat, because Continue reading →

When is artificial insemination more economical in beef herds?

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Although artificial insemination (AI) of cattle has been possible for 60 years, this technology has not been used widely in the Canadian beef industry.  Genetic evaluation of beef bulls has improved considerably in recent years, making bull selection more objective and reliable.  Sexed semen, expected progeny differences (EPDs) and the ability to select for specific traits identified through DNA markers are now available. Recent scientific studies have also greatly increased our understanding of reproductive function in cattle and have improved our ability to regulate their reproductive cycles.

The true costs of natural service are often underestimated. Buying bulls rather than semen packages is less economical in some cases, even with commercial cattle.  By evaluating the costs and benefits of natural service versus AI, producers can determine which program (or combination) will Continue reading →