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Effects of summer and winter temperature–humidity index on performance of some reproductive traits of high producing dairy cows

Hadi Dashti; Ahmad Riasi; Mohammad Ali Edris; Golam-Reza Gohrbani; Hossein Omidi-Mirzaei

Volume 47, Issue 2 , October 2016, , Pages 321-327

http://dx.doi.org/10.22059/ijas.2016.59037

Abstract
  The aim of this study was to consider reproductive performance parameters and blood progesterone concentration changes in high-producing dairy cows (39±2 kg per day) after artificial insemination, in summer and winter. 270 heads of Holstein dairy cattle were choose in three big dairy farms, and ...  Read More