Search Results - "Weller, J.I"

Environmental and genetic factors affecting cow survival of Israeli Holsteins by Weller, J I, Ezra, E

“…The objectives were to investigate the effects of various environmental factors that may affect herd-life of Israeli Holsteins, including first-calving age and…”
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Invited review: quantitative trait nucleotide determination in the era of genomic selection by Weller, J I, Ron, M

“…Genome-wide association studies based on tens of thousands of single nucleotide polymorphisms have been completed for several dairy cattle populations. Methods…”
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Detection of quantitative trait loci affecting milk production, health, and reproductive traits in Holstein cattle by Ashwell, M S, Heyen, D W, Sonstegard, T S, Van Tassell, C P, Da, Y, VanRaden, P M, Ron, M, Weller, J I, Lewin, H A

“…We report putative quantitative trait loci affecting female fertility and milk production traits using the merged data from two research groups that conducted…”
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Comparison of pure Holsteins to crossbred Holsteins with Norwegian Red cattle in first and second generations by Ezra, E., Van Straten, M., Weller, J. I.

“…A total of 1922 first generation crossbred cows born between 2005 and 2012 produced by inseminating purebred Israeli Holstein cows with Norwegian Red semen,…”
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Short communication: a polymorphism in ABCG2 in Bos indicus and Bos taurus cattle breeds by Ron, M, Cohen-Zinder, M, Peter, C, Weller, J I, Erhardt, G

“…A single nucleotide change (A/C) in exon 14 is capable of encoding a substitution of tyrosine-581 to serine (Y581S) in the ABCG2 (ATP binding cassette,…”
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Genetic analysis of persistency in the israeli holstein population by the multitrait animal model by Weller, J I, Ezra, E, Leitner, G

“…Persistency was defined as the predicted milk production 180 d after peak divided by peak production (in %). Heritability of persistency in a multitrait…”
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Application of a posteriori granddaughter and modified granddaughter designs to determine Holstein haplotype effects by Weller, J I, VanRaden, P M, Wiggans, G R

“…A posteriori and modified granddaughter designs were applied to determine haplotype effects for Holstein bulls and cows with BovineSNP50 [~50,000 single…”
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Detection of quantitative trait loci affecting twinning rate in Israeli Holsteins by the daughter design by Weller, J I, Golik, M, Seroussi, E, Ron, M, Ezra, E

“…Twinning rate was analyzed in the Israeli Holstein dairy cattle population by the multiple-trait animal model, and a daughter design genome scan for…”
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Genetic analysis of the Israeli Holstein dairy cattle population for production and nonproduction traits with a multitrait animal model by Weller, J I, Ezra, E

“…Milk, fat, and protein production, somatic cell score (SCS), and female fertility in the Israeli Holstein dairy cattle population were analyzed using a…”
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Incorporation of genotype effects into animal model evaluations when only a small fraction of the population has been genotyped by Baruch, E., Weller, J. I.

“…The method of Israel and Weller (Estimation of candidate gene effects in dairy cattle populations. Journal of Dairy Science 1998, 81, 1653–1662) to estimate…”
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Predictive ability of selected subsets of single nucleotide polymorphisms (SNPs) in a moderately sized dairy cattle population by Weller, J. I., Glick, G., Shirak, A., Ezra, E., Seroussi, E., Shemesh, M., Zeron, Y., Ron, M.

“…Several studies have shown that computation of genomic estimated breeding values (GEBV) with accuracies significantly greater than parent average (PA)…”
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Incorporation of discrete genotype effects for multiple genes into animal model evaluations when only a small fraction of the population has been genotyped by Baruch, E, Weller, J I

“…An efficient algorithm is described for marker-assisted selection appropriate for large populations, even though only a small fraction of the population is…”
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Application of the a posteriori granddaughter design to the Holstein genome by Weller, J. I., Cole, J. B., VanRaden, P. M., Wiggans, G. R.

“…An a posteriori granddaughter design was applied to estimate quantitative trait loci genotypes of sires with many sons in the US Holstein population. The…”
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Population-wide analysis of a QTL affecting milk-fat production in the Israeli Holstein population by Weller, J I, Golik, M, Seroussi, E, Ezra, E, Ron, M

“…A population-wide linkage disequilibrium on bovine chromosome 14 between microsatellite ILSTS039 and DGAT1, a putative quantitative trait locus affecting milk…”
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Factors affecting incorrect paternity assignment in the Israeli Holstein population by Weller, J I, Feldmesser, E, Golik, M, Tager-Cohen, I, Domochovsky, R, Alus, O, Ezra, E, Ron, M

“…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…”
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Effect of misidentification on genetic gain and estimation of breeding value in dairy cattle populations by Israel, C, Weller, J I

“…The effect of pedigree errors on estimated breeding value and genetic gain for a sex-limited trait with heritability of 0.25 was evaluated. Ten populations of…”
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Differential expression of ruminant ZNF496 variants: Association with quantitative trait locus affecting bovine milk concentration and fertility by Golik, M, Glick, G, Reicher, S, Shirak, A, Ezra, E, Zeron, Y, Gootwine, E, Ron, M, Weller, J I, Seroussi, E

“…A single nucleotide polymorphism in the intergenic region upstream of the ZNF496 gene on Bos taurus chromosome 7 displayed significant population-wide linkage…”
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Genetic analysis of the growth rate of Israeli Holstein calves by Weller, J. I., Ezra, E.

“…Weight of male and female Israeli Holstein calves and yearling gain were analyzed on 285 800 records from 105 935 animals from 458 herds recorded between 1994…”
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Detection and analysis of quantitative trait loci affecting production and secondary traits on chromosome 7 in Israeli Holsteins by Weller, J I, Golik, M, Reikhav, S, Domochovsky, R, Seroussi, E, Ron, M

“…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…”
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A simple method for genomic selection of moderately sized dairy cattle populations by Weller, J. I., Ron, M., Glick, G., Shirak, A., Zeron, Y., Ezra, E.

“…An efficient algorithm for genomic selection of moderately sized populations based on single nucleotide polymorphism chip technology is described. A total of…”
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