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Detection and analysis of quantitative trait loci affecting production and secondary traits on chromosome 7 in Israeli holsteins
Year:
2008
Source of publication :
Journal of Dairy Science
Authors :
Domochovsky, R.
;
.
Golik, Marina
;
.
Ron, Micha
;
.
Seroussi, Eyal
;
.
Weller, Joel Ira
;
.
Volume :
91
Co-Authors:
Weller, J.I., Institute of Animal Sciences, Agricultural Research Organization, Volcani Center, Bet Dagan 50250, Israel
Gollk, M., Institute of Animal Sciences, Agricultural Research Organization, Volcani Center, Bet Dagan 50250, Israel
Reikhav, S., Institute of Animal Sciences, Agricultural Research Organization, Volcani Center, Bet Dagan 50250, Israel
Domochovsky, R., Institute of Animal Sciences, Agricultural Research Organization, Volcani Center, Bet Dagan 50250, Israel
Seroussl, E., Institute of Animal Sciences, Agricultural Research Organization, Volcani Center, Bet Dagan 50250, Israel
Ron, M., Institute of Animal Sciences, Agricultural Research Organization, Volcani Center, Bet Dagan 50250, Israel
Facilitators :
From page:
802
To page:
813
(
Total pages:
12
)
Abstract:
A total of 5,459 Israeli Holstein cows, daughters of 11 sires, were genotyped for 29 microsatellites spanning chromosome 7 and analyzed by the daughter design for 9 economic traits: milk, fat, and protein yield, fat and protein percentage, somatic cell score, female fertility, herd life, and milk persistency. Quantitative trait loci at chromosome-wise 0.05 significance were obtained for fat and protein yield, fat percentage, somatic cell score, and female fertility. Peak F-values were obtained at 29 cM for fat and protein yield and fat percentage, at 60 cM for somatic cell score, at 74 cM for herd life, and at 11 cM for female fertility. The 0.95 confidence intervals for quantitative trait loci locations were 20 cM for kilograms of fat, 27 cM for fertility, and 51 cM for somatic cell score. Two loci affecting fertility at opposite ends of the chromosome are apparently segregating in the population. A quantitative trait locus for fertility near the centromere was confirmed by application of the modified granddaughter design to a single family. Estimated frequency of the economically favorable allele in the Israeli Holstein cattle was less than 0.5. Significant genetic gain for fertility seems possible by marker-assisted selection. © American Dairy Science Association, 2008.
Note:
Related Files :
Animals
cattle
chromosome mapping
dairy cattle
DNA
Female
Genetics
Israel
Male
metabolism
milk
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Related Content
More details
DOI :
10.3168/jds.2007-0367
Article number:
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
18883
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:24
You may also be interested in
Scientific Publication
Detection and analysis of quantitative trait loci affecting production and secondary traits on chromosome 7 in Israeli holsteins
91
Weller, J.I., Institute of Animal Sciences, Agricultural Research Organization, Volcani Center, Bet Dagan 50250, Israel
Gollk, M., Institute of Animal Sciences, Agricultural Research Organization, Volcani Center, Bet Dagan 50250, Israel
Reikhav, S., Institute of Animal Sciences, Agricultural Research Organization, Volcani Center, Bet Dagan 50250, Israel
Domochovsky, R., Institute of Animal Sciences, Agricultural Research Organization, Volcani Center, Bet Dagan 50250, Israel
Seroussl, E., Institute of Animal Sciences, Agricultural Research Organization, Volcani Center, Bet Dagan 50250, Israel
Ron, M., Institute of Animal Sciences, Agricultural Research Organization, Volcani Center, Bet Dagan 50250, Israel
Detection and analysis of quantitative trait loci affecting production and secondary traits on chromosome 7 in Israeli holsteins
A total of 5,459 Israeli Holstein cows, daughters of 11 sires, were genotyped for 29 microsatellites spanning chromosome 7 and analyzed by the daughter design for 9 economic traits: milk, fat, and protein yield, fat and protein percentage, somatic cell score, female fertility, herd life, and milk persistency. Quantitative trait loci at chromosome-wise 0.05 significance were obtained for fat and protein yield, fat percentage, somatic cell score, and female fertility. Peak F-values were obtained at 29 cM for fat and protein yield and fat percentage, at 60 cM for somatic cell score, at 74 cM for herd life, and at 11 cM for female fertility. The 0.95 confidence intervals for quantitative trait loci locations were 20 cM for kilograms of fat, 27 cM for fertility, and 51 cM for somatic cell score. Two loci affecting fertility at opposite ends of the chromosome are apparently segregating in the population. A quantitative trait locus for fertility near the centromere was confirmed by application of the modified granddaughter design to a single family. Estimated frequency of the economically favorable allele in the Israeli Holstein cattle was less than 0.5. Significant genetic gain for fertility seems possible by marker-assisted selection. © American Dairy Science Association, 2008.
Scientific Publication
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