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Calving Interval Calculator - go to the Toollbox |
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Author: none specified |
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State: US Year: 2006 |
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Excerpt: Calculates: Voluntary Waiting Period - number of days after calving before breeding begins, Heat Detection Rate - probability a cow is detected in heat on any given heat cycle, Conception Rate - probability a cow conceives on any given breeding
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Dairy Reproductive Benchmarks |
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Author: Smith, Gilson, Ely |
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State: GA Year: 2002 |
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Excerpt: Measures of reproductive efficiency for AI herds (& all herds) in the South region by herd size. Also, Northeast, Midwest, & Midsouth regions.
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Decisive project discontinued 2/7/07 (advanced gender selection for dairy herds) |
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Author: Monsanto |
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State: US Year: 2005 |
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Excerpt: Decisive™ semen for advanced gender selection was an A.I. product which is cattle semen sorted to favor the production of either heifer calves or bull calves. Fertility was not up to standards, although technology met desired female calf ratio of 85%.
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Economic Advantages of A.I. Use on Dairies |
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Author: Overton, ABS |
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State: US Year: 2004 |
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Excerpt: Dairy producers using natural service have an opportunity to potentially gain $55/cow/year by implementing A.I on their dairy. (From faster genetic progress, improved reproductive performance, & elimination of a health & safety risk from the dairy.)
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Economic considerations of sexed semen on your dairy |
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Author: Overton |
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State: GA Year: 2007 |
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Excerpt: “Sexed Semen” or Gender Enhanced Semen (GES) makes it possible to increase the proportion of live female calves born yearly. Includes general considerations for choosing GES, potential sources of value for sexed semen, but also risks & drawbacks.
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Economic Importance of Improved Reproductive Performance |
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Author: De Vries, van Leeuwen, Thatcher |
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State: FL Year: 2004 |
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Excerpt: Objective of this paper is to provide some estimates on the economic benefits of improved reproductive performance through increasing pregnancy rates in dairy herds. The paper focuses on estimates under conditions in FL. Retention Pay-Off is RPO.
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Estrous synchronization programs for the dairy herd |
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Author: O'Connor |
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State: PA Year: 2001 |
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Excerpt: Topics Include: Introduction, Prostaglandin programs, Ovsynch program, Presynch program, Additional considerations for all programs, Requirements of controlled breeding programs, Summary
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Estrus (Heat) Detection Guidelines |
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Author: Keown, Kononoff |
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State: NE Year: 2007 |
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Excerpt: Records essential, visual signs of heat, observation is an absolute necessity, tips & aids to detect heat, other aids (milk or blood progesterone test, synchronization of breeding). Suggestions to minimize reproductive diseases…
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Hike your heifer ratio |
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Author: Linderoth, Pursley |
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State: MI Year: 2004 |
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Excerpt: Change the timing of breeding from 24 hours after the final GnRH injection to breeding immediately after the injection is given. Trade-off: conception rates hovered around 29 percent, while those bred later averaged a 39 percent conception rate.
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How to Estimate a Dairy Herd’s Reproductive Losses |
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Author: Keown, Kononoff |
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State: NE Year: 2006 |
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Excerpt: Remedies for herd losses caused by calving interval, dry periods, A.I. performance, & age at first freshening. Record Keeping, Reproductive Goals, Potential Income, & Summary.
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