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Cows are at their most fertile between 60 and 80 days after calving. Cows remaining "open" (not with calf) after this period become increasingly difficult to breed, which may be due to poor health. Failure to expel the afterbirth from a previous pregnancy, luteal cysts, or metritis, an infection of the uterus, are common causes of infertility
Research shows that milk production may be negatively impacted if cows do not acquire enough protein during their dry phase. [13] If farms are unable to provide separate diets for far-off and close-up cows, producers may choose to manage their diets with a shorter dry period and a negative DCAD (dietary cation-anion difference) ration diet.
The etymology of the term "freemartin" is uncertain: speculations include that "free" may indicate "willing" (referring to the freemartin's willingness to work) or "exempt from reproduction" (referring to its sterility, or to a farmer's decision to not bother trying to breed a freemartin, or both), or that it may be derived from a Flemish word for a cow which gives no milk and/or has ceased to ...
An article from Maurice Eastridge, a professor in the department of animal sciences at Ohio State University, noted that having between 3% to 5% sugar in a dairy cow's diet can help with proper ...
Animal non-reproductive sexual behavior encompasses sexual activities that non-human animals participate in which do not lead to the reproduction of the species. Although procreation continues to be the primary explanation for sexual behavior in animals, recent observations on animal behavior have given alternative reasons for the engagement in sexual activities by animals. [1]
Thirty cows that survived a truck rollover that killed 14 others on a Connecticut highway have gotten a veterinary exam and are cleared to complete their journey, the state Agriculture Department ...
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An "intact" (i.e., not castrated) adult male is called a bull. A father bull is called a sire with reference to his offspring, such as in the herd book or purebred records. A female bovine that has not yet had a calf is known as a heifer. An adult female that has had her first calf (or second calf, depending upon regional usage) is called a cow ...