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פותח על ידי קלירמאש פתרונות בע"מ -
The contribution of bulls and cows to the seasonal differences in the fertility of dairy cattle in Israel
Year:
1982
Source of publication :
Animal Reproduction Science
Authors :
אמיר, דוד
;
.
שינדלר, חיים
;
.
Volume :
5
Co-Authors:
Amir, D., Institute of Animal Sciences, ARO, The Volcani Center, P.O.B. 6, Bet Dagan, 50250, Israel
Bar-el, M., Hasherut A.I. Service, Israel
Kalay, D., Hasherut A.I. Service, Israel
Schindler, H., Institute of Animal Sciences, ARO, The Volcani Center, P.O.B. 6, Bet Dagan, 50250, Israel
Facilitators :
From page:
93
To page:
98
(
Total pages:
6
)
Abstract:
Semen collected from dairy Israeli-Friesian bulls in the winter and summer was pelleted-frozen and used for inseminations in the collection season, in the other season, and after a 12-month storage period. The semen quality, as assessed by the percentage of ejaculates with initial poor motility and low sperm density and the percentage of spermatozoa surviving the freezing-thawing process, and those revealing acrosomal and tail abnormalities after thawing, was slightly and non-significantly lower in summer than in winter. The fertility of semen collected in both seasons was not affected by a 12-month storage period. The use of winter semen in summer did not improve the low fertility of cows in that season compared with those inseminated with summer semen. It appears from the results of this study that the summer decrease in the fertility of the inseminations is due to the adverse effect of this season on the fertility of the cows. © 1982.
Note:
Related Files :
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תוכן קשור
More details
DOI :
10.1016/0378-4320(82)90015-X
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
26697
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:24
Scientific Publication
The contribution of bulls and cows to the seasonal differences in the fertility of dairy cattle in Israel
5
Amir, D., Institute of Animal Sciences, ARO, The Volcani Center, P.O.B. 6, Bet Dagan, 50250, Israel
Bar-el, M., Hasherut A.I. Service, Israel
Kalay, D., Hasherut A.I. Service, Israel
Schindler, H., Institute of Animal Sciences, ARO, The Volcani Center, P.O.B. 6, Bet Dagan, 50250, Israel
The contribution of bulls and cows to the seasonal differences in the fertility of dairy cattle in Israel
Semen collected from dairy Israeli-Friesian bulls in the winter and summer was pelleted-frozen and used for inseminations in the collection season, in the other season, and after a 12-month storage period. The semen quality, as assessed by the percentage of ejaculates with initial poor motility and low sperm density and the percentage of spermatozoa surviving the freezing-thawing process, and those revealing acrosomal and tail abnormalities after thawing, was slightly and non-significantly lower in summer than in winter. The fertility of semen collected in both seasons was not affected by a 12-month storage period. The use of winter semen in summer did not improve the low fertility of cows in that season compared with those inseminated with summer semen. It appears from the results of this study that the summer decrease in the fertility of the inseminations is due to the adverse effect of this season on the fertility of the cows. © 1982.
Scientific Publication
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