Heat stress abatement during the dry period influences metabolic gene expression and improves immune status in the transition period of dairy cows.

  title={Heat stress abatement during the dry period influences metabolic gene expression and improves immune status in the transition period of dairy cows.},
  author={B C do Amaral and Erin E. Connor and Sha Tao and Maghrebi Hayen and J. W. Bubolz and Geoffrey E. Dahl},
  journal={Journal of dairy science},
  volume={94 1},
Heat stress (HT) and photoperiod affect milk production and immune status of dairy cows. The objective was to evaluate the effects of HT abatement prepartum under controlled photoperiod on hepatic metabolic gene expression and cellular immune function of periparturient Holstein cows (n=21). Cows were dried off 46 d before expected calving date and assigned to treatments by mature equivalent milk production. The treatments were 1) HT and 2) cooling (CL), both imposed during a photoperiod of 14L… 

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