FERTILITY OF RANGE BEEF BULLS GROUPED ACCORDING TO PRESENCE OR ABSENCE OF HEPARIN-BINDING PROTEINS IN SPERM MEMBRANES AND SEMINAL FLUID
FERTILITY OF RANGE BEEF BULLS GROUPED ACCORDING TO PRESENCE OR ABSENCE OF HEPARIN-BINDING PROTEINS IN SPERM MEMBRANES AND SEMINAL FLUID
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DOI：
10.2527/1994.7292441x
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发表时间：
1994-09-01
影响因子：
3.3
通讯作者：
AX, RL
中科院分区：
文献类型：
--
作者：
BELLIN, ME;HAWKINS, HE;AX, RL
本试验旨在确定肝素结合蛋白（HBP）与公牛生育力的关系。根据精子膜和精液中是否存在最大亲和力的HBP（HBP-B5），对红安格斯（142头）、圣格特鲁迪斯（59头）、盖尔布维（59头）和圣格特鲁迪斯×盖尔布维（40头）公牛进行鉴定。将9至20头具有相同HBP-B5特征的公牛分配到与圣格特鲁迪斯奶牛的牧场，比例为1头公牛：25头奶牛。第1组（在6个牧场中，80头公牛精子膜中有HBP-B5，但精液中未检测到HBP-B5）的生育率为1，692头母牛的82%。第2组公牛（48公牛HBP-B5检测精液和精子膜，在四个牧场）浸渍67%的919头奶牛。第3组（37头精液中HBP-B5但精子膜中HBP-B5检测不到的公牛，在三个牧场）和第4组（56头精液和精子中HBP-B5检测不到的公牛，在四个牧场）的生育率分别为63%（747头和1,208头母牛）。第1组的生育能力比第2、3和4组平均高17%（P
Trials were performed to determine the relationship of heparin-binding proteins (HBP) to fertility of bulls. Red Angus (142), Santa Gertrudis (59), Gelbvieh (59), and Santa Gertrudis x Gelbvieh (40) bulls were identified according to the presence or absence of the greatest affinity HBP (HBP-B5) on sperm membranes and in seminal fluid. Nine to 20 bulls with the same HBP-B5 profiles were assigned to pastures with Santa Gertrudis cows at a ratio of 1 bull:25 cows. Fertility for Group 1 (80 bulls with HBP-B5 in sperm membranes but undetectable HBP-B5 in seminal fluid, in six pastures) was 82% pregnant of 1,692 cows. Group 2 bulls (48 bulls with HBP-B5 detectable in seminal fluid and in sperm membranes, in four pastures) impregnated 67% of 919 cows. Fertility for Group 3 (37 bulls with HBP-B5 in seminal fluid but undetectable HBP-B5 in the sperm membranes, in three pastures) and Group 4 (56 bulls with undetectable HBP-B5 in seminal fluid and sperm, in four pastures) was 63% pregnant; of 747 and 1,208 cows, respectively. Group 1 had an average of 17% greater fertility compared with Groups 2, 3, and 4 (P