Advantages of Utilizing a Synchronization Protocol Prior to Natural Service in Beef Cows

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Date
2021-05
Authors
Moore, Elizabeth
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Animal Science

The Department of Animal Science originally concerned itself with teaching the selection, breeding, feeding and care of livestock. Today it continues this study of the symbiotic relationship between animals and humans, with practical focuses on agribusiness, science, and animal management.

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The Department of Animal Husbandry was established in 1898. The name of the department was changed to the Department of Animal Science in 1962. The Department of Poultry Science was merged into the department in 1971.

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Abstract
This study examined the ability of estrous synchronization prior to natural breeding in beef cows to help producers improve the performance and profitability of their herd. To do this, we compared published literature on three different breeding strategies: 1) cows were bred by natural service without use of estrous synchronization, 2) cows were bred by natural service following the use of estrous synchronization and 3) cows were bred using timed artificial insemination with estrous synchronization, followed by the use of clean up sires. Bull carrying capacity, veterinary costs, labor, and calving distribution were determined for each strategy. Costs and revenue analysis were conducted for each strategy to examine economic efficiency within the herd. While there were increased costs associated with handling, labor, and product, improved revenue can be realized by increasing the number of calves born during the first 21 days of the calving season due to heavier weaning weights and decreased labor.
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