A5042828956- Genetic and phenotypic traits in livestock
- Reproductive Physiology in Livestock
- Genetic Mapping and Diversity in Plants and Animals
- Effects of Environmental Stressors on Livestock
- Milk Quality and Mastitis in Dairy Cows
- Ruminant Nutrition and Digestive Physiology
- Cancer-related molecular mechanisms research
- Wheat and Barley Genetics and Pathology
- Genetics and Plant Breeding
- Animal Genetics and Reproduction
- Animal Behavior and Welfare Studies
- Agriculture Sustainability and Environmental Impact
- Livestock Farming and Management
- Growth Hormone and Insulin-like Growth Factors
- Reproductive Biology and Fertility
- Vector-Borne Animal Diseases
- Genetic diversity and population structure
- Morphological variations and asymmetry
- Microbial infections and disease research
- Genetic Syndromes and Imprinting
- Animal Disease Management and Epidemiology
- Probiotics and Fermented Foods
- Gene expression and cancer classification
- Animal health and immunology
- Organ Transplantation Techniques and Outcomes
Israel Dairy Board (Israel)
2010-2025
Agricultural Research Organization
1990-2016
The effects of body condition score at drying off and after calving the rate loss during dry period on performance 2162 cows in eight commercial Israeli Holstein herds were evaluated. relationships between health, fertility yield examined by using multiple logistic regressions for measurements with only two outcomes general linear models continuous variables. Herds, parity, season, length period, postparturient diseases, twinning, stillbirth, induction high somatic cell counts used as...
Methods for genomic prediction were evaluated an Israeli Holstein dairy population of 713,686 cows and 1,305 progeny-tested bulls with genotypes. Inclusion genotypes 343 elite in evaluation method that considers pedigree, phenotypes, simultaneously was also evaluated. Two data sets available: a complete set production records from 1985 through 2011, reduced after 2006 deleted. For each trait, multitrait animal model used to compute traditional genetic evaluations parities 1 3 as separate...
Abstract “Selective DNA pooling” accomplishes quantitative trait locus (QTL) mapping through densitometric estimates of marker allele frequencies in pooled samples phenotypically extreme individuals. With poly(TG) microsatellites, such are confounded by “shadow” (“stutter”) bands. A correction procedure was developed on the basis an observed linear regression between shadow band intensity and TG repeat number. Using this procedure, a selective pooling study with respect to milk protein...
Nine Israeli Holstein sire families with 2978 daughters were analyzed for quantitative trait loci effects on chromosome 6 five milk production traits by a daughter design. All animals genotyped 2 markers. The three significant up to 10 additional markers spanning positions 0-122 cM of BTA6. Two sires segregating locus affecting protein and fat percentage near position 55 an estimated substitution effect 0.18% protein, which is equivalent one phenotypic standard deviation. This was localized...
Copy number variation (CNV) has been recently identified in human and other mammalian genomes, there is a growing awareness of CNV's potential as major source for heritable complex traits. Genomic selection newly developed tool based on the estimation breeding values quantitative traits through use genome-wide genotyping SNPs. Over 30,000 Holstein bulls have genotyped with Illumina BovineSNP50 BeadChip, which includes 54,001 SNPs (~SNP/50,000 bp), some fall within CNV regions. We used...
Coagulase-negative staphylococci (CNS) are the most frequently isolated bacteria from bovine mammary gland milk samples. The objective of this study was to determine type inflammation evoked by CNS in cows during their first lactation. Twenty-four Israeli-Holstein heifers lactation were tested for bacteriological status, somatic cell count (SCC) and differential leucocyte 60-120 days postparturition every 50-60 after until drying off. Following testing, 96 quarters 24 classified as follows:...
A population-wide linkage disequilibrium on bovine chromosome 14 between microsatellite ILSTS039 and DGAT1, a putative quantitative trait locus affecting milk production traits, was found in the Israeli Holstein population. total of 394 bulls were genotyped for both DGAT1 ILSTS039, 1747 cows ILSTS039. The allele termed "225," K (substitution lysine residue with alanine), associated decreased production, increased fat protein percent. number 225 alleles per individual same 80% genotyped. From...
Bovine ephemeral fever virus (BEFV) is an arthropod-borne (arbovirus) transmitted by blood-feeding insects (mosquitoes and Culicoides biting midges). While the dispersal of arboviral diseases such as bovine (BEF) into naive areas often result globalization animal movement, endemization local outbreaks these are mainly influenced environmental changes. Climate change affects activity, distribution, dynamics, life cycles vectors (arthropods), replication viruses within their vectors, weakens...
The objectives of the current study were to estimate genetic parameters BCS as a function lactation stage investigate relationship between BCS, metabolic disease traits, and other traits under selection in Israel, well consider consequence inclusion some measure Israeli breeding index. basic dataset included records on 236,350 Holstein cows with at least 1 record during first parity. Heritabilities parities 3 for near calving, peak milk production, drying-off ranged from 0.27 0.36 highest...
The role of heritable thrombophilic risk factors in the pathogenesis Perthes’ disease is controversial. clinical and radiological findings may be indistinguishable from those Gaucher’s disease, most common Jewish N370S Gaucher mutation threefold greater patients with disease. Familial osteonecrosis femoral head associated variant mutations collagen type II (COL2A1 mutations). We therefore studied potential genetic thrombophilia COL2A1 children Genomic DNA 119 radiologically-confirmed...