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immunity

Effect of heat stress during late gestation on immune function and growth performance of calves: Isolation of altered colostral and calf factor

Extract: 

Maternal HT during late gestation decreased calf birth weight and weaning weight and compromised the passive IgG transfer, regardless of colostrum source. Feeding colostrum from HT cows during the dry period did not affect AEA or growth performance during the preweaning period, but seemed to impair humoral im- mune response during the first month of life.

Source: 

A. P. A. Monteiro, S. Tao, I. M. Thompson, and G. E. Dahl1
Department of Animal Sciences, University of Florida, Gainesville 32611