Influence of Temperature Humidity Index and Dietary Energy on Certain Stress Marker Profile of Murrah Buffalo Heifers
Papori Talukdar Shivlal Singh Kundu Gautom Mondal
Vol 7(4), 195-204
The present study was undertaken to assess the influence of temperature humidity index (THI) and dietary energy (DE) on certain metabolic and endocrine profile of Murrah buffalo heifers. Thirty six heifers were distributed into three groups (T1, T2, and T3) comprising six animals in each group. The ration was formulated as control group (T1) having ME content according to ICAR and T2 and T3 having 115% and 85% than control respectively, in total mixed based ration. The effect of rations was observed in high THI, 78-85 (summer) and low THI, 50-61 (winter) separately for a period of 120days. The Blood samples were collected aseptically at monthly interval. The respiratory rate, pulse rate and rectal temperature were higher during high THI (summer season) in compression to low THI (winter season). Though there was no significant variation on plasma thyroid (T3, T4) and IGF-1 level among the groups but in high THI period, the level were significantly (P<0.01) decrease in comparison to low THI period. Plasma cortisol level showed significantly (P<0.01) higher in T3 group in both the season in comparisons to T1 and T2 which indicated stress to the animals. In conclusion, increasing ME content could be helpful in alleviating stress during both the seasons and moreover, during summer period, where the animals were at higher stress, increasing ME content will support to climatic resilient livestock production.
Keywords : Energy Level Season Metabolic Hormone Stress Hormone Murrah Buffalo Heifer
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