Impact of lameness on reproduction in grazing herds

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While the link between lameness and reproduction has been studied for quite some time, less research has been done to see the effects of lameness in cows on pasture. To provide information about this, one farm with 463 cows in the lower North Island of New Zealand participated in a study designed to assess the effect of clinical lameness on conception rate.

Cows were observed for lameness by the farm staff, and information about the incidence was recorded, which found the following:

The daily hazard of conception for cows identified as lame was 0.78, with a 95% confidence interval.

Lame cows took 12 days longer to get pregnant compared to non-lame cows in the same herd.

Click here to access the November 2011 Journal of Dairy Science abstract.

 

Source: Dairy Cattle Reproduction Council



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