頁籤選單縮合
題名 | 品種與季節對亞熱帶公豬精液品質之影響=Effects of Breed and Season on Semen Characteristics of Boars in Subtropical Area |
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作者姓名(中文) | 郭有海; 黃三元; 李淵百; | 書刊名 | 中華民國獸醫學會雜誌 |
卷期 | 23:2 1997.04[民86.04] |
頁次 | 頁114-132 |
分類號 | 437.654 |
關鍵詞 | 公豬; 精液品質; 人工授精; 品種; 季節; Boar; Semen quality; Artificial insemination; Breed; Season; |
語文 | 中文(Chinese) |
中文摘要 | 本研究之目的在於瞭解品種及季節對供人工授精純種公豬精液性狀之影響,以作 為使用公豬精液進行人工授精或自然配種及提供改善人工授精中心公豬飼養環境之參考。供 試公豬包括 18 頭 12 至 36 月齡之純種公豬 (藍瑞斯 4 頭, 約克夏 5 頭、杜洛克 9 頭 );採精間距設定為每週 2 次或 4-5 天採精一次。 精液性狀測定之項目包括精液量、精子 活力、正常精子與畸型精子百分率、頸部含原生質滴精子百分率、中片部含原生質滴精子百 分率、精子濃度、一次射精之總精子數、精液酸鹼值和精液滲透壓值等。數據分析包括品種 、季節及其交感效應對各精液性狀之影響。試驗結果顯示,各品種公豬間之前述性狀,除精 子活力與一次射精總精子數外,均有顯著的品種差異;其中以藍瑞斯公豬之精液品質較杜洛 克與約克夏者好。所有精液性狀在季節間比較亦有顯著的差異;夏季時各公豬之正常精子率 與精液濃度均顯著下降,而不成熟精子則有增加的趨勢。品種與季節交感效應的分析結果顯 示,藍瑞斯與約克夏公豬的精液性狀較易受到夏季高溫的影響,而杜洛克公豬則較不受季節 影響。 本研究結果證明;在亞熱帶 (如本省 ) 環境下,供人工授精用純種公豬的精液性狀 以藍瑞斯公豬者最佳,而精液品質明顯地受到夏季熱緊迫的影響;因此為謀維持公豬具有高 繁殖力,在夏季應加強改善公豬之飼養環境。 |
英文摘要 | The purpose of this study was to investigate the effects of breed and season on semen characteristics of boars used for artificial insemination. Boar semen was collected from 4 Landrace 5, Yorkshire, and 9 Duroc boars. The age of boars ranged from 12 to 36 months old. Semen was collected twice per week or at 4-5 day intervals for one year. The semen characteristics examined were semen volume (gel free), sperm motility, percent of normal sperm and abnormal sperm, proximal plasma droplet sperm, distal plasma droplet sperm, semen pH value, semen osmotic pressure, sperm concentration and total sperm number per ejaculation. The effects of breed, season, and their interaction on the above traits were evaluated. The results were as follows: There were significant breed differences in all the semen characteristics evaluated, except for sperm motility and total sperm number per ejaculation. The semen quality of Landrace boars was better than that in Duroc or Yorkshire boars. There was also significant seasonal effect on boar semen quality. The percent of normal sperm and sperm concentration declined during summer. The percent of immature sperm increased in summer. The results of interaction analysis between breed and season indicated that the semen characteristics of Landrace and Yorkshire were more easily influenced by season than for Duroc boars. The present study demonstrated that Landrace boars had the best semen quality in AI centers under subtropical climate. However, the hot climate in summer did influence semen quality. It is necessary to improve the feeding and management scheme in summer to maintain the fertility of boars. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。