Comparison of calf weaning weight and associated economic variables between beef cows with and without serum antibodies against or isolation from feces of Mycobacterium avium subsp paratuberculosis.

Bikash Bhattarai,Geoffrey T Fosgate, Jason B Osterstock,Charles P Fossler, Seong C Park,Allen J Roussel

Journal of the American Veterinary Medical Association（2013）

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摘要

Calves from cows with MAP-positive test results had significantly lower AWWs than did calves from cows with MAP-negative test results, which translated into economic losses for MAP-infected beef herds.

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