Effect of shade materials on microclimate of crossbred calves during summer - Reena Kamal, Triveni Dutt, B. H. M. Patel, Amitava Dey, P. C. Chandran, S. K. Barari, Asit Chakrabarti and Bharat Bhusan
Veterinary World, 7(10): 776-783
doi: 10.14202/vetworld.2014.776-783
Reena Kamal: Livestock Production and Management Section, Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, India;
dr.reenakamal@yahoo.com
Triveni Dutt: Livestock Production and Management Section, Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, India;
jdeeivri@gmail.com
B. H. M. Patel: Livestock Production and Management Section, Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, India; mpatellpm@gmail.com
Amitava Dey: Division of Livestock and Fisheries Management, ICAR-Research Complex for Eastern Region, Patna, Bihar, India; amitavdey_icar@yahoo.co.in
P. C. Chandran: Division of Livestock and Fisheries Management, ICAR-Research Complex for Eastern Region, Patna, Bihar, India; vetchandran@gmail.com
S. K. Barari: Division of Livestock and Fisheries Management, ICAR-Research Complex for Eastern Region, Patna, Bihar, India; skbarari@yahoo.co.in
Asit Chakrabarti: Division of Livestock and Fisheries Management, ICAR-Research Complex for Eastern Region, Patna, Bihar, India; asit1963@yahoo.com
Bharat Bhusan: Division of Animal Genetics and Breeding, Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, India;bhusan.drbharat@gmail.com
Received: 09-07-2014, Revised: 04-08-2014, Accepted: 09-08-2014, Published online: 05-10-2014
Corresponding author: Reena Kamal, e-mail: dr.reenakamal@yahoo.com
Aim: The present study was carried out on cattle and buffalo farm of Indian Veterinary Research Institute, Izatnagar (Uttar Pradesh) to determine the effect of different shade materials on physiological performance in Vrindavani crossbred calves during the summer.
Materials and Methods: Twenty-eight crossbred calves were divided into four groups viz. Thatch shading roof (T1), agro-net shading roof - 60 % light diffusion (T2), asbestos with canvas shading roof (T3) and well-grown tree (T4). The recording of macro and micro climate as well as the physiological parameters viz. rectal temperature and respiration rate were recorded at 9:00 AM and 2:00 PM for 2 consecutive days at every fortnight interval.
Result: The microclimate viz. maximum and minimum, relative humidity, temperature humidity index and surface temperature of the roof was lower in T2 group in the summer season. The physiological responses viz. rectal temperature and respiration rate was significantly higher in T4.
Conclusion: During the summer season both thatch and agro-net shade material helped in better relieving the summer stress.
Keywords: crossbred calves, microclimate, rectal temperature, respiration rate, shade materials, summer.
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