Comparison of serum leptin, glucose, total cholesterol and total protein levels in fertile and repeat breeder cows

In the present study we measured serum glucose, leptin, total cholesterol and total protein concentrations in repeat breeder cows and compared them with fertile cows. For this aim, 20 repeat breeder cows and 20 fertile cows were used as material. Repeat breeder cows were found to have lower levels of leptin and glucose as compared with fertile ones. No significant differences in total cholesterol and total protein levels were observed between the two groups. No significant correlation of leptin with glucose, total cholesterol and total protein was observed in fertile and repeat breeder cows. Low concentrations of glucose and leptin can have some effects on reproductive problems as repeat breeder and help to understand potential mechanisms impairing fertility in repeat breeder cows.

本研究检测了屡配不孕母牛（repeat breeder cows）与可育母牛的血清葡萄糖、瘦素（leptin）、总胆固醇及总蛋白水平，并对两组开展对比分析。为此，本试验以20头屡配不孕母牛与20头可育母牛为试验材料。结果显示，与可育母牛相比，屡配不孕母牛的血清瘦素与葡萄糖水平显著降低。两组间总胆固醇与总蛋白水平未观察到显著差异。在可育母牛与屡配不孕母牛群体中，均未发现瘦素与葡萄糖、总胆固醇及总蛋白间存在显著相关性。血清葡萄糖与瘦素水平偏低可能与屡配不孕繁殖障碍存在关联，该发现有助于解析屡配不孕母牛生育力受损的潜在机制。