Sarlós P, Molnár A
Research Institute for Animal Breeding and Nutrition, Herceghalom, Hungary.
Acta Vet Hung. 1995;43(2-3):247-57.
Seasonal changes in the sperm parameters of British Milk rams were studied at weekly intervals over a period of 12 months. By comparing the seasonal averages of the test parameters, significant differences were determined in several cases. Substantial differences were found in the averages of quantitative parameters between autumn and the other seasons. As regards the qualitative parameters, the results obtained in summer and autumn were significantly different from those measured in winter and spring. The ratio of deformed spermatozoa was outstandingly high (22.72%) in August. A close negative correlation was established between sperm motility and the incidence of acrosomal defects (r = -0.52; P < 0.1%). The length of natural daylight and daily average temperature were found to exert an influence on the sperm parameters. In autumn, the combined effect of the two weather parameters shows a significant correlation with the concentration of spermatozoa (r = -0.62; P < 0.1%). As British Milk rams show well-balanced sperm production throughout the year with only minor fluctuations, they can be used for reproduction all the year round.
在12个月的时间里，每周对英国乳用公羊的精子参数进行季节性变化研究。通过比较测试参数的季节性平均值，在几种情况下确定了显著差异。秋季与其他季节之间在定量参数平均值上存在实质性差异。在定性参数方面，夏季和秋季获得的结果与冬季和春季测量的结果有显著差异。8月份畸形精子的比例极高（22.72%）。精子活力与顶体缺陷发生率之间建立了密切的负相关（r = -0.52；P < 0.1%）。发现自然日照长度和日平均温度对精子参数有影响。在秋季，这两个天气参数的综合作用与精子浓度呈显著相关（r = -0.62；P < 0.1%）。由于英国乳用公羊全年精子生成平衡良好，波动较小，它们可以全年用于繁殖。
