The Effect of Sperm Morphology and Sire Fertility on Calving Rate of Finnish Ayrshire AI Bulls
The Effect of Sperm Morphology and Sire Fertility on Calving Rate of Finnish Ayrshire AI Bulls
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DOI：
10.1111/rda.12645
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发表时间：
2016-02-01
影响因子：
1.7
通讯作者：
Andersson, M.
中科院分区：
文献类型：
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作者：
Attia, S.;Katila, T.;Andersson, M.
优质精液是现代奶牛人工授精 (AI) 成功且盈利的先决条件。通过男科检查和精液分析（例如形态学）来评估公牛的生育力。然而，公牛生育能力的遗传却很少受到关注。在这项研究中，我们将 695 头 AI 公牛的精子形态、出生年份和地位与产犊率 (CR) 相关联。精子形态与 CR 明显相关，强调了形态学检查在生育力评估中的有用性。正常精子比例与 CR 之间存在显着相关性 (p < 0.001)。各站或出生年份之间没有发现显着差异。我们还将 695 头 AI 公牛的 CR 与其 27 头公牛的 CR 进行了比较，以研究生育力的遗传。父亲的 CR 与儿子的 CR 不相关 (p = 0.218)。这一结果表明，至少当可接受的 CR 的雄性被用来产生用于 AI 的儿子时，CR 的遗传并不显着相关。
Good-quality semen is a prerequisite for successful and profitable artificial insemination (AI) of modern dairy cattle. Fertility of the bulls is evaluated with andrological examinations and semen analyses, such as morphology. However, little attention has been paid to the inheritance of bull fertility. In this study, we correlated sperm morphology, birth year and station of 695 AI bulls with calving rate (CR). Sperm morphology was clearly associated with CR underlining the usefulness of morphological examination in the assessment of fertility. The correlation between the proportion of normal spermatozoa and CR was significant (p < 0.001). No significant differences were detected between stations or birth years. We also compared the CR of 695 AI bulls with the CR of their 27 sires to study the inheritance of fertility. Sire's CR did not correlate with the CR of the sons (p = 0.218). This result indicates that at least when sires of acceptable CR are used to produce sons for use in AI the inheritance of CR is not significantly correlated.