cows not cycling

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berkbig2000

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:( I have about 20 cows that should be inheat and 5 hefers that do cycle normally what could be wrong with the cows?I have not seen any cows in heat for at least 3 months.The heifers are 16 months old and are cycling normally.The cows are all 3-8 years old and in very good condition.Very good pasture and cows and hefeirs had the same shots 6 weeks ago.
 
berkbig2000":4j1958ah said:
:( I have about 20 cows that should be inheat and 5 hefers that do cycle normally what could be wrong with the cows?I have not seen any cows in heat for at least 3 months.The heifers are 16 months old and are cycling normally.The cows are all 3-8 years old and in very good condition.Very good pasture and cows and hefeirs had the same shots 6 weeks ago.
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When did the cows calve? Is there any possibility that a bull got in with them and they are bred?
 
How often do you watch them and for what period of time? (an hour a day twice a day? 12 hours a day?)

Perhaps you have a good fenceline that the bull can run alongside them for a few weeks?
 
Call in the veterinarian and have a herd health check carried out. Good practise to do this on an annual basis anyways.

Bez>
 
Pregnancy would certainly stop them cycling - so this needs to be ruled out regardless of where you think the bull was!!!!
Other option would include anoestrus due to feed/body condition reasons (though you sound like this is not a problem).
Another factor could be the feed they are on - very high oestrogenic feeds can cause anoestrus in other species that I know of so no reason why it couldn't happen in cattle too!
 
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msscamp":1kiodj04 said:
cowvet":1kiodj04 said:
...very high oestrogenic feeds...
Click to expand...

Cowvet, could you explain this in a little more detail please? Thank you.
Click to expand...

But the heifers are cycling normal, Seems the cows must be bred or you missed seeing them cycle. Feb calvers should have cycled for a couple months now. Cows are in good shape, can't imagine what the problem would be?
 
It could be possible the cows are over-conditioned, that is, too fat. Since the heifers are still growing, the ‘very good pasture’ is not a problem for them as they are able to utilize the extra calories. But for a cow, the extra calories just go to fat.

An over-conditioned cow can have similar problems to a cow that is under-conditioned.

Just a suggestion as to what may be wrong.

The surest thing you could do is have them pregged to see if they are bred or not; and then go from there.
 
They may need more minerals you may not know this but phosphorous will have a lot to with a cows fertility and your soil may not carry enough of it.In my opinion it may have to do with nutrition one way or another because when a cow isn't getting the nutrients she needs the reproductive system is the first thing to go.
 

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