Comparative Biochemical, Mineral and Progesterone Profile in Different Trimesters of Pregnant Crossbred Jersey Cows
DOI:
https://doi.org/10.48165/ijar.2026.47.01.07Keywords:
Biochemical, Mineral, Progesterone, Trimester, CowAbstract
The present study is aimed to investigate the biochemical, mineral and hormonal profiles of crossbred Jersey cows across three trimesters of pregnant (n=6) and non-pregnant cyclic (n=6) cows (controls). Pregnant cows were divided into three subgroups based on 1st, 2nd and 3rd trimesters. The study revealed variations in serum calcium, inorganic phosphorus, magnesium, glucose, total protein, cholesterol and progesterone levels among different trimesters and non-pregnant cyclic cows. Notably, calcium levels (mg/dl) declined significantly from early to late pregnancy stages (10.29 ±0.12 to 9.39 ± 0.20), whereas inorganic phosphorus levels (mg/dl) showed a decreasing trend throughout pregnancy (from 5.87 ± 0.01 to 5.32 ± 0.04). The magnesium levels displayed no significant variance across trimesters, while glucose levels (mg/dl) decreased progressively from the 1stto 3rdtrimester (52.13 ± 00.39 to 47.47 ± 0.44). Total protein concentration (g/l) indicated a significant difference between trimesters, with a decline in late pregnancy (7.90 ± 0.05 to 7.43 ± 0.10). Cholesterol levels (mg/dl) decreased toward the late gestation period (201.89 ± 4.77 to 132.09±3.75). Progesterone levels were higher during 2ndtrimester of pregnancy (5.84 ± 0.13 ng/ml) as compared to 1st and 3rd trimester of pregnancy. These observations suggest that assessing essential minerals, biochemical constituents and progesterone at specific ges tational stages provides valuable insights into understanding predisposing factors for mitigating pre and postpartum complications in dairy cattle.References
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