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 |
The present study was carried out with the objectives to study oxidative stress in periparturient cows by estimation of the levels of antioxidant trace elements copper, zinc and iron in plasma at 30, 15 days before parturition, on the day of parturition, 15 and 30 days after parturition. During study significantly higher levels of zinc (P<0.05) and iron (P<0.01) was observed between control and parturited animals. This indicates higher oxidative stress on the day of parturition. Zinc and iron decreased significantly from 30 days before parturition and attained lowest levels on the day of parturition. However, the level increased gradually thereafter up to 30 days after parturition. Significant increase in copper level was observed on the day of parturition, thereafter the levels decreased. Copper is a constituent of SOD enzyme and levels of SOD also increased on the day of parturition. The present study indicates some kind of role of the antioxidant trace elements, zinc and iron in protecting cows from oxidative stress as their levels significantly decreased during pregnancy and parturition.
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