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Crossbred Cows Respond Differently from Holstein Frisian and Bos Indicus to Heat Stress Under Various Climatic Conditions

Crossbred Cows Respond Differently from Holstein Frisian and Bos Indicus to Heat Stress Under Various Climatic Conditions

Ikramullah Khan1,2*, Muhammad Subhan Qureshi2, Sohail Akhtar2, Ijaz Ali3 and Ghufran Ullah4 

1Department of Animal Sciences, the University of Illinois at Urbana-Champaign, 61801, IL, USA; 2Department of Livestock Management, The University of Agriculture Peshawar, 25120, Pakistan; 3Institute of Biotechnology and Genetic Engineering, The University of Agriculture Peshawar, 25120, Pakistan; 4Directorate General (Research), Livestock and Dairy Development, Khyber Pakhtunkhwa, Peshawar, Pakistan.

drkhaniu@gmail.com 

Figure 1

Effect of various ambient temperatures on rectal temperature in various dairy cattle breeds (● 18 °C, ♦ 32 °C, ▲ 42 °C).

Figure 2

Effect of various ambient temperatures on respiration rate in various dairy cattle breeds (● 18 °C, ♦ 32 °C, ▲ 42 °C). 

Figure 3

Effect of various ambient temperatures on pulse rate in various dairy cattle breeds (● 18 °C, ♦ 32 °C, ▲ 42 °C). 

Figure 4

Effect of various ambient temperatures on serum glucose level in various dairy cattle breeds (● 18 °C, ♦ 32 °C, ▲ 42 °C) 

Figure 5

Effect of various ambient temperatures on serum cortisol concentrations in various dairy cattle breeds (● 18 °C, ♦ 32 °C, ▲ 42 °C). 

Figure 6

Effect of various ambient temperatures on HSP-70 concentrations in various dairy cattle breeds (● 18 °C, ♦ 32 °C, ▲ 42 °C). 

Sarhad Journal of Agriculture

June

Vol. 35, Iss. 2, Pages 320-662

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