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פותח על ידי קלירמאש פתרונות בע"מ -
Factors affecting incorrect paternity assignment in the Israeli Holstein population
Year:
2004
Source of publication :
Journal of Dairy Science
Authors :
גוליק, מרינה
;
.
דומוצ'ובסקי, ר'
;
.
ולר, יהודה
;
.
רון, מיכה
;
.
Volume :
87
Co-Authors:
Weller, J.I., Institute of Animal Sciences ARO, Volcani Center, Bet Dagan 50250, Israel
Feldmesser, E., Institute of Animal Sciences ARO, Volcani Center, Bet Dagan 50250, Israel
Golik, M., Institute of Animal Sciences ARO, Volcani Center, Bet Dagan 50250, Israel
Tager-Cohen, I., Institute of Animal Sciences ARO, Volcani Center, Bet Dagan 50250, Israel
Domochovsky, R., Institute of Animal Sciences ARO, Volcani Center, Bet Dagan 50250, Israel
Alus, O., Institute of Animal Sciences ARO, Volcani Center, Bet Dagan 50250, Israel
Ezra, E., Israel Cattle Breeders Association, Caesaria Industrial Park, Caesaria 38900, Israel
Ron, M., Institute of Animal Sciences ARO, Volcani Center, Bet Dagan 50250, Israel
Facilitators :
From page:
2627
To page:
2640
(
Total pages:
14
)
Abstract:
A total of 6040 Israeli Holstein cows from 181 Kibbutz herds listed as progeny of 11 sires were genotyped for 104 microsatellites. Seventeen markers were deleted due to a frequency of erroneous genotypes >1%, leaving 160,470 valid genotypes. Conflicts between the putative sire and daughter in at least 2 markers and for at least 10% of the markers genotyped per cow were required to reject paternity. Cows that did not meet the requirements for paternity confirmation or rejection were deleted from further analysis. The frequency of rejected paternity was 11.7%. The effects of recorded sire, birth year, geographical region, herd, and inseminator on the frequency of paternity rejection were analyzed with linear and nonlinear models. Only the effects of inseminator and recorded sire were significant in all models tested that included these effects. The main causes of incorrect paternity recording appear to be inseminator recording mistakes, and possibly mistakes with respect to semen labeling at the AI institutes. Incorrect paternity recording due to multiple inseminations by different sires could explain, at most, 20% of the paternity mistakes. Instituting a system of quality control, especially at the level of the inseminator, should reduce paternity errors to no more than 8%, and increase genetic progress by at least 1%.
Note:
Related Files :
Animal
Animals
breeding
cattle
dairy cattle
Female
Genetics
Israel
Male
Mammalia
quality control
עוד תגיות
תוכן קשור
More details
DOI :
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
20746
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:38
Scientific Publication
Factors affecting incorrect paternity assignment in the Israeli Holstein population
87
Weller, J.I., Institute of Animal Sciences ARO, Volcani Center, Bet Dagan 50250, Israel
Feldmesser, E., Institute of Animal Sciences ARO, Volcani Center, Bet Dagan 50250, Israel
Golik, M., Institute of Animal Sciences ARO, Volcani Center, Bet Dagan 50250, Israel
Tager-Cohen, I., Institute of Animal Sciences ARO, Volcani Center, Bet Dagan 50250, Israel
Domochovsky, R., Institute of Animal Sciences ARO, Volcani Center, Bet Dagan 50250, Israel
Alus, O., Institute of Animal Sciences ARO, Volcani Center, Bet Dagan 50250, Israel
Ezra, E., Israel Cattle Breeders Association, Caesaria Industrial Park, Caesaria 38900, Israel
Ron, M., Institute of Animal Sciences ARO, Volcani Center, Bet Dagan 50250, Israel
Factors affecting incorrect paternity assignment in the Israeli Holstein population
A total of 6040 Israeli Holstein cows from 181 Kibbutz herds listed as progeny of 11 sires were genotyped for 104 microsatellites. Seventeen markers were deleted due to a frequency of erroneous genotypes >1%, leaving 160,470 valid genotypes. Conflicts between the putative sire and daughter in at least 2 markers and for at least 10% of the markers genotyped per cow were required to reject paternity. Cows that did not meet the requirements for paternity confirmation or rejection were deleted from further analysis. The frequency of rejected paternity was 11.7%. The effects of recorded sire, birth year, geographical region, herd, and inseminator on the frequency of paternity rejection were analyzed with linear and nonlinear models. Only the effects of inseminator and recorded sire were significant in all models tested that included these effects. The main causes of incorrect paternity recording appear to be inseminator recording mistakes, and possibly mistakes with respect to semen labeling at the AI institutes. Incorrect paternity recording due to multiple inseminations by different sires could explain, at most, 20% of the paternity mistakes. Instituting a system of quality control, especially at the level of the inseminator, should reduce paternity errors to no more than 8%, and increase genetic progress by at least 1%.
Scientific Publication
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