Journal of Veterinary and Animal Sciences

Volume: 55 Issue: 1

  • Open Access
  • Research Article

Effect of heat stress on milk fatty acid profile in crossbred and vechur cattle

K. Roshna1, M.V. Chinnu1, R. Uma1, M. Shynu1 and V. Beena2

1. Department of Veterinary Biochemistry

2. Department of Veterinary Physiology

College of Veterinary and Animal Sciences Mannuthy, Thrissur- 680651 Kerala Veterinary and Animal Sciences University Kerala, India

*Corresponding author: [email protected] , Ph. 9562968495

Year: 2024, Page: 135-141, Doi:

Received: Oct. 12, 2023 Published: March 31, 2024


A study was performed to investigate the impact of heat stress on milk composition and fatty acid profile in crossbred and Vechur cattle. The study was organized in two periods, period 1 with minimum Temperature Humidity Index (THI) (December 2022 to January 2023) and period 2 with maximum THI (March 2023 to April 2023). Six milk samples collected from lactating crossbred and Vechur cows were subjected to analysis. Milk composition analysis revealed no significant difference (p>0.05) between breeds and periods. The milk fatty acid analysis was accomplished using Gas chromatography-mass spectrometry (GC-MS). Six saturated, two monounsaturated and one polyunsaturated fatty acids were analysed. Among the analysed saturated fatty acids, the palmitic and caprylic acids showed a significant difference in milk samples of crossbred cattle with a surge in mean value during period 2 (p <0.05). However, in Vechur milk only stearic acid showed a significant difference with an increased mean in period 2. Monounsaturated fatty acids showed a significant difference in crossbred milk with an increased mean during period 2 (p <0.05). The only polyunsaturated fatty acid analysed in the work was linolenic acid. Compared to crossbred cattle, Vechur milk showed a decrease in the quantum of linolenic acid which is statistically significant (p <0.05) during period 2.

Keywords: Temperature Humidity Index, fatty acid, heat stress


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Cite this article

Roshna K., Chinnu M.V., Uma R., Shynu M. and Beena V. 2024. Effect of heat stress on milk fatty acid profile in crossbred and vechur cattle. J. Vet. Anim. Sci. 55(1):135-141