Metabolic indicators for early pregnancy in zebu and crossbred dairy cows reared in a subtropical climate

Authors : Muzamil ABDULLAH, Tushar Kumar MOHANTY, Mukesh BHAKAT, Arumugam KUMARESAN, Tapas Kumar PATBANDHA, Ambadas Rakhamaji MADKAR, Ashok Kumar MOHANTY

Pages : 407-413

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Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :To identify metabolic indicators in blood and urine for early pregnancy in dairy cows insert ignore into journalissuearticles values(32 crossbred and 12 purebred zebu cows);, blood and urine samples were collected on days 0, 15, 20, 24, and 30 postbreeding. The plasma progesterone insert ignore into journalissuearticles values(P4); concentration was significantly insert ignore into journalissuearticles values(P < 0.05); higher in pregnant cows than in nonpregnant cows after day 15. The plasma blood urea nitrogen insert ignore into journalissuearticles values(BUN); concentration remained significantly insert ignore into journalissuearticles values(P < 0.05); higher in pregnant cows on day 15. The plasma concentrations of cholesterol, glucose, protein, and nonesterified fatty acid insert ignore into journalissuearticles values(NEFA); did not differ between pregnant and nonpregnant cows. The urine protein concentration was significantly higher insert ignore into journalissuearticles values(P < 0.05); in pregnant zebu cows compared to nonpregnant zebu cows. Plasma P4 was significantly insert ignore into journalissuearticles values(P < 0.001); and positively associated with urine glucose levels in nonpregnant crossbred cows. In nonpregnant zebu cows, the correlation between P4 was positive insert ignore into journalissuearticles values(P < 0.05); with plasma cholesterol, glucose, urine glucose, and protein. In pregnant zebu cows, P4 was negatively associated with plasma BUN and positively insert ignore into journalissuearticles values(P < 0.05); associated with both plasma and urine glucose levels. Thus, urinary proteins can be used as a noninvasive tool for early nonpregnancy confirmation in cows with very high accuracy at around 24 days after artificial insemination.
Keywords : Cow, metabolic indicators, pregnancy, urine