Effect of Thi on Hormone Profile, Blood Metabolites, Milk Composition and BCS in Lactating Murrah Buffaloes

Loading...
Thumbnail Image
Date
2020
Journal Title
Journal ISSN
Volume Title
Publisher
MAFSU, Nagpur
Abstract
In lactating buffaloes responses to THI and lactational stressors are exhibited by alterations in the serum metabolites and hormones and milk constituents along with alterations in the dam’s BCS. Since the overall effects of lactation, environment and pregnancy on the buffalo are multifaceted, varied physiological outputs must be studied in order to understand the impact on health and productivity. THI elevations and lactational stages have been found to influence the milk quality and quantity, raising the question of which of the aforementioned variables are causing what effect on the lactating female. Therefore, we negated one variable and kept all the fifteen buffaloes selected from a single farm in Thane District open throughout the 210 days lactational study period. Blood and milk samples were collected on day 7, day 14 and fortnightly thereafter. The analysed data showed significant variations throughout lactation in milk yield and its measured components (protein, lactose, SNF and fat). The blood metabolites panel assessed (total proteins, albumin, globulin, A:G, urea, creatine, glucose, SGPT, SGOT, calcium and magnesium), hormone profile (T3, T4, IGF1, insulin, GH and cortisol) and BCS showed significant variations during the 210 days lactation period, while serum phosphorus, chloride and leptin were non-significant. The correlation between THI and the studied parameters was by and large non-significant, except for insulin (positively correlated) and IGF1 (negatively correlated). This non-significant result could be due to the fact that the lactation period was from July to February and therefore the buffaloes escaped the summer heat stress.
Description
Keywords
null
Citation
Collections