Effect of a-tocopherol acetate and zinc supplementation on body condition, energy metabolites and milk production in Karan Fries cows
Citation :- Effect of a-tocopherol acetate and zinc supplementation on body condition, energy metabolites and milk production in Karan Fries cows .Indian Journal Of Animal Research.2016.(50):48-52
The study was conducted to investigate the effect of a-tocopherol acetate and zinc on body condition, energy metabolites and milk production in Karan Fries cows. Sixteen pregnant Karan Fries cows were selected two months before expected date of calving. The experimental animals were randomly divided in to two groups namely control group (eight cows) and treatment group (eight cows). Treatment group cows were supplemented with a-tocopherol acetate @ 1000 IU/day/cow and zinc @ 60 ppm/day/cow. Blood samples were collected on the days -60, -45, -30, -15, -7, 0, +7, +15, +30, +45 and +60 with respect to expected date of calving. The body weight and body condition score of all the experimental animals was recorded on the day of blood collection. After calving milk yield of the experimental animals was recorded till 60 days in milk. At parturition, body weight and body condition score differ significantly (P<0.001) in treatment group than control group (448.00 vs. 416.33 Kg and 4.42 vs. 4.17, respectively). The overall mean (±SEM) of plasma glucose was found to be significantly (P<0.001) higher in treatment group as compared to control group (62.39±1.23 vs. 57.44±1.59 mg/dl). The overall mean of non-esterified fatty acids was found to be significantly (P<0.001) lower in treatment group as compared to control group (197.10±3.38 vs. 239.21±3.48 µM/L). The overall mean of milk yield was found significantly (P<0.001) higher in treatment group as compared to control group (20.48±1.16 vs. 16.94±1.38 Kg/day i.e. 20.90%). The results of this study indicated that supplementation of antioxidants like a-tocopherol acetate and zinc have beneficial effects on milk production along with improved body condition and metabolic status of the animals.
Body condition score
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