IMPACT OF GLUCOSE LEVEL ON ESTROUS OF DAIRY COW

Abstract

The present study was conducted to observe the impact of blood glucose level on estrous condition in dairy cow. Blood samples were collected from fifty (50) Holstein Friesian crossbred cows aged 3-5 years with different estrous symptoms for the determination of blood glucose level, calcium level and phosphorus level. Among fifty estrous cows, around forty percentage (40%) had higher glucose level, forty percentage (40%) had lower glucose level and twenty percentage (20%) had normal glucose level and the average blood glucose levels (mmol/L) were 4.68±0.07, 2.38±0.06 & 3.67±0.04 in high, low and normal blood respectively. These glucose level had significant (P<0.05) impact on the calcium and phosphorus levels. The lower level of glucose markedly decrease the phosphorus level and this lower level also significantly hampered the normal estrous symptoms. About 70% and 80% cows showed estrous condition which had higher and normal blood glucose level and normal calcium and phosphorus levels. But only 20% cow showed estrous condition which had lower blood glucose level and lower phosphorus level. Results showed that blood glucose level significantly affect (p<0.05) the estrous and hamper ovary health. These results of the present study suggest that lower blood glucose level causes adverse effect on reproductive performance in dairy cow.