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Cattle Boards
Breeding / Calving Issues
fertility
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<blockquote data-quote="Victoria" data-source="post: 592735" data-attributes="member: 1258"><p>One of the problems in the dairy industry relating to fertility is that high milking animals tend to be less fertile than lower milking animals. The dairy industry on the whole wants the higher milk producing animals of course. The trade off is shorter estrus cycles (which result in both a shorter amount of time to breed and less chance of detecting heat), and less production of both estradiol and progesterone by the cow. Can you tell I just took an AI course? :lol2: </p><p></p><p>No matter what the articles say about fertilitly/genetics over the years we have found that on average get pregnant first heat have daughters that do the same. If you find a cow that is high milking, strong cycling and high pregnancy rates I would keep her daughters before keeping the daughter of a cow that breeds back late. There is a chance that the daughter of the late catcher will be good but you have to feed for a few years to find out.</p></blockquote><p></p>
[QUOTE="Victoria, post: 592735, member: 1258"] One of the problems in the dairy industry relating to fertility is that high milking animals tend to be less fertile than lower milking animals. The dairy industry on the whole wants the higher milk producing animals of course. The trade off is shorter estrus cycles (which result in both a shorter amount of time to breed and less chance of detecting heat), and less production of both estradiol and progesterone by the cow. Can you tell I just took an AI course? :lol2: No matter what the articles say about fertilitly/genetics over the years we have found that on average get pregnant first heat have daughters that do the same. If you find a cow that is high milking, strong cycling and high pregnancy rates I would keep her daughters before keeping the daughter of a cow that breeds back late. There is a chance that the daughter of the late catcher will be good but you have to feed for a few years to find out. [/QUOTE]
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