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Absorption of colostral immunoglobulins by newborn dairy calves


, : Absorption of colostral immunoglobulins by newborn dairy calves. Journal of Dairy Science 54(10): 1547-1549

Twenty-seven calves were fed colostrum at 2.5% of body weight immediately and at 12 hours after birth, and at 3.75% of weight at 24 and 36 hours. Blood samples were taken at 3, 12, 24, 48, 96, and 168 hours after birth. Colostrum samples taken at parturition and at 12 and 24 hours were available from 19 cows. Average blood serum immunoglobulin increased from 0.29 before initial feeding to 1.54 g per 100 ml at 24 hours, and declined slowly thereafter.

US$29.90

PMID: 5165467


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