Response of crossbred cattle in terms of respiration rate and rectal temperature to maximum and minimum THI period in Kerala

Volume: 51 Issue: 2

Open Access
Short Communication

Response of crossbred cattle in terms of respiration rate and rectal temperature to maximum and minimum THI period in Kerala

N.V. Jisha1, G. Girish Varma2, V. Beena3, A. Prasad4, V.L. Gleeja5, K. Karthiayini6 and V. Sejian7

1. Ph.D Scholar, CAADECCS, COVAS, Mannuthy. 2. Dean, College of Avian Science and Management, Thiruvazhamkunnu. [email protected], 9446229673. 3. Assistant Professor and Implementing officer, CAADECCS, COVAS, Mannuthy 4. Assistant Professor, Department of Livestock Production and Management, COVAS, Mannuthy 5. Assistant Professor, Department of Statistics, CVAS, Mannuthy. 6. Professor and Head, Department of Veterinary Physiology, CVAS, Pookode. 7. Senior Scientist, NIANP, Bangalore.

Year: 2020, Page: 214-216,

Received: Nov. 21, 2019 Accepted: Jan. 4, 2020 Published: July 1, 2020

Abstract

The observation indicated that from THI 82 to 86 the body of the animal could maintain body temperature by physiological means of thermoregulation primarily by increasing respiration. Rectal temperature showed a positive correlation when THI reaches 86 and rectal temperature started increasing at ambient temperature of 340 C and THI 86. But beyond 86 all these mechanisms failed and body temperature started rising. The relative humidity affects evaporative cooling negatively when it cross limit. This limit is very important to adopt management practices and could be identified by doing experiments at different RH levels using a climate chamber. The absence of correlation between THI and AH is also pointing to the fact that temperature and humidity affect the evaporative mechanism independently.

Keywords:

References

Kabuga, J.D. 1992. The influence of thermal conditions on rectal temperature, respiration rate and pulse rate of lactating Holstein Friesian cows in the humid tropics. Intl. J. Biotech. 36(3): 146-150.

Marai, I. F. M., El-Darawany, A. A., Fadiel, A. and Abdel-Hafez, M. A. M. 2007. Physiological traits as affected by heat stress in sheep. A Rev. Small Rum. Res.71: 1-12.

Sherwood, L., Klandorf, H. and Yancey, P. 2012. Animal physiology: from genes to organisms. (2nd Ed.). Cengage Learning. 696p

Copyright

: © 2020 Jisha et al. This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Cite this article

Jisha, N.V., Girish, V.G., Beena, V., Prasad, A., Gleeja, V.L., Karthiayini, K. and Sejian, V. 2020. Response of crossbred cattle in terms of respiration rate and rectal temperature to maximum and minimum THI period in Kerala. J. Vet. Anim. Sci. 51(2): 214-216.

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