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Journal of Dairy Science Vol. 84 No. 2 389-391
© 2001 by American Dairy Science Association ®
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Short Communication: Low Levels of Colostral Immunoglobulins in Some Dairy Cows with Placental Retention

V. Lona-D 1 and C. Romero-R. 1

1 Departamento de Biología de la Reproducción, Universidad Autónoma Metropolitana Iztapalapa, Box 55-535, México 09340

A test with 27 Holstein cows divided in two groups was conducted to evaluate the effects of placental retention (PR) on the colostral components. Fat and total protein content were similar in both groups, but immunoglobulins in cows with PR (7.58 ± 6.72 g/L) were significantly lower than in cows without PR (15.13 ± 8.56 g/L). In contrast, casein levels were higher in cows with PR (38.61 ± 17.05 g/L vs. 27.60 ± 12.71 g/L) compared with cows without PR.

Key Words: colostral immunoglobulins • placental retention • dairy cows • colostrum

Submitted on July 7, 2000
Accepted on October 9, 2000






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