Department of Livestock Production and Management, Madras Veterinary College, Chennai - 600 097, India.
*This forms part of Ph.D. thesis submitted by the first author to Tamil Nadu Veterinary and Animal Sciences University, Chennai - 600 051.
A study was conducted to find out the blood profile of 28 Jersey crossbred cows at different physiological stages. The physiological stages of the experimental cows such as dry stage, milking and lactating - pregnant conditions. Blood samples were collected once in a month for a period of twelve months and 16 important blood constituents were estimated. All the blood constituents with the exception of only total protein and serum magnesium had differed at highly significant (P<0.01) level between the three physiological stages.
