北京黒豚における精液の一般性状と保存試験および雌豚の繁殖成績

DOI 日本農学文献記事索引 被引用文献1件 参考文献17件

書誌事項

タイトル別名
  • Characteristics and Preservation of Semen of Beijing Black and Reproductive Performance of the Sows.

この論文をさがす

抄録

A study was carried out to investigate the characteristics of Beijing Black boars, the preservation of liquid semen by a Kiev extender at 15°C, the preservation of frozen semen in straws and the subsequent reproductive performance of Beijing Black sows. Four boars were prepared for the semen investigation, and 6 sows (10 litters) were examined for reproductive performance. Additionally, Duroc, Landrace and Large White boars or Landrace sows were used as controls.<br>With regard to semen characteristics, the mean semen volume of Beijing Black boars tended to be less than that of the controls (203.0±66.5ml vs 224.3±52.7ml). The mean sperm motility was lower than that of the controls (P<0.01, 74.6±8.5% vs 83.1±7.0%). The mean semen concentration, mean osmotic pressure and mean pH corresponded to those of the controls.<br>With regard to the preservation of liquid semen of Beijing Black boars, the sperm motility of the day of dilution was 78.8±4.3% and decreased to 59.2±11.0% at day 5 after dilution. This tendency corresponded to that of the controls. The motility of the frozen-thawed semen at 30min after thawing was lower than that of the control (P<0.05, 31.5±.3% vs 36.4±8.6%).<br>The mean litter size, mean weight at birth, mean litter size at weaning, mean weight of piglets at weaning and mean gestation period were 12.0±2.7, 1.20±0.29kg, 9.7±2.0, 7.75±1.61kg and 114.0±1.4 days, respectively. It was shown that the litter size tended to be 1 or 2 more than that of the controls, the mean weight of piglets at birth showed no differences between Beijing Black and the controls, and the gestation period was 1.5 days shorter than that of the controls (P<0.05).

収録刊行物

被引用文献 (1)*注記

もっと見る

参考文献 (17)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ