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Cattle Boards
Breeding / Calving Issues
Bull fever - fertility?
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<blockquote data-quote="bigag03" data-source="post: 791209" data-attributes="member: 9247"><p>With a fever of 105, your risk is high that he will have fertility issues at some point in the next 60 days. If you have another bull, I would use him. Have your bull BSE tested now, and again in 30-45 days. If he tests bad, wait at least 30 days and test him again.</p><p></p><p>Spermatogenesis (the process of sperm production) takes 60 days. For a simple example, if a bull spikes a severe fever that kills all sperm cells today then returns to normal temp tomorrow (I know that is a little too simple, but just for illustration), you will have to wait 60 days before quality semen is produced. This is because developing sperm cells as well as mature sperm cells were affected by the fever.</p></blockquote><p></p>
[QUOTE="bigag03, post: 791209, member: 9247"] With a fever of 105, your risk is high that he will have fertility issues at some point in the next 60 days. If you have another bull, I would use him. Have your bull BSE tested now, and again in 30-45 days. If he tests bad, wait at least 30 days and test him again. Spermatogenesis (the process of sperm production) takes 60 days. For a simple example, if a bull spikes a severe fever that kills all sperm cells today then returns to normal temp tomorrow (I know that is a little too simple, but just for illustration), you will have to wait 60 days before quality semen is produced. This is because developing sperm cells as well as mature sperm cells were affected by the fever. [/QUOTE]
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Bull fever - fertility?
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