STUDY OF SEASONAL CHANGES IN PLASMA GROWTH HORMONE AND CORTISOL LEVEL WITH BODY WEIGHT GAIN FEATURES IN BLACK BENGAL GOATS DURING FIRST SIX MONTH OF GROWTH PERIOD

S. PERVEEN¹*, P.K. DAS^2
1Department of Veterinary Physiology, West Bengal University of Animal and Fishery Sciences, Belgachia, Kolkata, 700037, West Bengal, India
²Department of Veterinary Physiology, West Bengal University of Animal and Fishery Sciences, Belgachia, Kolkata, 700037, West Bengal, India
* Corresponding Author : sperveen1999@gmail.com

Received : 10-03-2020     Accepted : 27-03-2020     Published : 30-03-2020
Volume : 12     Issue : 3       Pages : 1801 - 1803
Int J Microbiol Res 12.3 (2020):1801-1803

Keywords : Growth, Kids, Summer, Winter, Body weight
Academic Editor : Kumar D Shiva
Conflict of Interest : None declared
Acknowledgements/Funding : Authors are thankful to IVRI- Indian Veterinary Research Institute (Eastern Region Station) for providing the experimental animals. Authors are also thankful to Department of Veterinary Physiology, West Bengal University of Animal and Fishery Sciences, Belgachia, Kolkata, 700037, West Bengal, India
Author Contribution : All authors equally contributed

In this present investigation, comprehensive study on the seasonal effect on hormonal parameters (Growth Hormone and Cortisol) in pre pubertal state was done in black Bengal goats reared under free range system. The parameters were studied on day 15, day 30, day 60, day 90, day 120, day 150 and day 180 after birth during summer and winter season. Kids were weaned at 2 months and reared in completely free ranged system without any concentrate. Blood samples were collected from six randomly selected male and female kids during summer and winter season for hormonal studies. The major finding of this study was that body weight is a unique parameter amongst the various growth parameters which varied between age and season. Growth hormone had highly significantly (P ? 0.01) positive correlation with body measurements. The mean concentration of growth hormone was found to be lower than the earlier reports (0.41 ± 0.01 ng/ml) indicating probable cause of stunted growth in highly prolific black Bengal goat. Seasonal variations in Cortisol levels significantly (P ? 0.01) increased during summer.

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