National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
This study was conducted to evaluate the impact of age on serum enzymes and hormones in crossbred calves from birth to three months of age. The research was carried out on six apparently healthy crossbred calves (aged 0-3 months) with similar physiological status. Blood samples were collected from the experimental animals on 0, 3, 7, 10, 15, 30, 45, 60, 75 and up to 90 days age of calves. Five ml of whole blood from each animal was collected in clot activator vacutainer. Serum was separated and analyzed for serum enzymes and hormones. The concentration of Alanine Transaminase and Aspartate Transaminase were significantly (P < 0.05) highest on the day of birth while significantly (P < 0.05) lowest concentration was observed on 90th day of life. The serum Alkaline Phosphatase concentration was highest on the day of birth and decreased significantly (P < 0.05) on 3rd day. The serum Triiodothyronine (T3) and Thyroxine (T4) levels were significantly (P < 0.05) highest on the day of birth. While the lowest concentration of T3 and T4 were observed on 90th day of life. The level of T3 and T4 were decreasing significantly (P < 0.05) from the day of birth to 90th day of life. The non-significant difference was observed for serum cortisol from the day of birth to 90th day of life in crossbred calf. It could be concluded that among obtained among enzymes, ALT, AST and AKP having significant variation. Triiodothyronine and throxine levels differed significantly while level of cortisol was not affected significantly during pre-weaning period of crossbred calf.
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