Distribution of Recessive Genetic Defect Carriers in Holstein Friesian Cattle: A Polish Perspective [PDF]
AnimalsGenetic disorders are caused by a hereditary change in the structure of DNA that may hurt the health and life of animals. Several recessive haplotypes and a few causative mutations are known in Holstein Friesian cattle: CDH (Holstein cholesterol ...
Tomasz Sadkowski +2 more
exaly +4 more sources
Population Genetic Features of Calving Interval of Holstein-Friesian Cows Bred in Hungary [PDF]
AnimalsCalving interval (CI) data (N = 37,263) from 17,319 cows born 2008–2018 in six herds were assessed. The data were made available by the National Association of Hungarian Holstein Friesian Breeders in Hungary. The effects of some genetic and environmental
Szabolcs Bene +2 more
exaly +4 more sources
Heritability and Trends in Selected Udder Traits and Their Relation to Milk Production in Holstein-Friesian Cows [PDF]
AnimalsThis study aimed to evaluate the heritability (h2) estimates of some important udder conformation traits, their relationship to each other and with production, and their phenotypic and genetic trends over a 10-year period in relatively high-yielding ...
Zsolt Jenő Kőrösi +3 more
doaj +2 more sources
Animals, 2022 The objective of this study was to estimate genetic parameters for the analyzed fertility traits of Polish Holstein-Friesian primiparous and multiparous cows, as a step toward the incorporation of new traits into routine genetic evaluation.
Agnieszka Otwinowska-Mindur +2 more
exaly +3 more sources
Relationship Between Age at First Calving and 305-Day Milk Yield in Hungarian Holstein-Friesian Cows: Trends and Genetic Parameters [PDF]
AnimalsAge at first calving (AFC) and 305-day milk yield in the first lactation (MY) data of 18,545 Holstein-Friesian cows born between 2008 and 2018 in six herds were evaluated.
Szabolcs Albin Bene +4 more
doaj +2 more sources
Bacteriological load in Holstein Friesian cows with dystocia. [PDF]
Front Vet SciThe research took place on a farm in North-Eastern Romania with Holstein Friesian cows aged between 3 and 9 years. Bacteriological investigations were carried out throughout the year 2023, on a total of 35 cows, including 25 multiparous cows and 10 primiparous cows, 23 cows had eutocic parturitions and 12 cows had dystocic parturitions, during the ...
Nechifor F, Ciornei ȘG, Roșca P.
europepmc +4 more sources
Association of Production and Selected Dimensional Conformation Traits in Holstein Friesian Cows [PDF]
AnimalsThe objective of this study was to estimate the heritability of dairy production traits and that for dimensional traits and to calculate the correlation between the two heritability values in a Holstein Friesian cow herd bred in Hungary.
Zsolt Jenő Kőrösi +4 more
doaj +2 more sources
Different Breeding Values Under Uniform Environmental Condition for Milk Production Yield Traits in Holstein-Friesian Cows [PDF]
AnimalsIn this study, 1,616,549 Holstein-Friesian females were genotyped for genomic evaluation of genetic merit (BVGenomic). Genotyping was performed using the EuroGenomics MD v3.0 chipset on the Illumina microarray scanner platform operated by an accredited ...
László Bognár +4 more
doaj +2 more sources
The effect of Holstein-Friesian, Jersey × Holstein-Friesian, and Norwegian Red × (Jersey × Holstein-Friesian) cows on dry matter intake and production efficiencies in pasture-based systems [PDF]
Journal of Dairy Science, 2022 The objective of this study was to investigate the effect of cow genotype and parity on dry matter intake (DMI) and production efficiencies in pasture-based systems. Three dairy cow genotypes were evaluated over 3 yr; 40 Holstein-Friesian (HF), 40 Jersey × HF (JEX), and 40 Norwegian Red × JEX (3WAY) each year, with each genotype grazed in equal numbers
Mc Clearn, B. +7 more
openaire +7 more sources
An assessment of the production, reproduction, and functional traits of Holstein-Friesian, Jersey × Holstein-Friesian, and Norwegian Red × (Jersey × Holstein-Friesian) cows in pasture-based systems [PDF]
Journal of Dairy Science, 2020 Pasture-based production systems typically require highly fertile, healthy, and robust genetics, with greater emphasis on milk solids (MSo; kg of fat + protein) production as opposed to milk yield. This study assessed milk production, production efficiency, reproductive performance, body weight (BW), body condition score, and functional traits in 3 ...
Mc Clearn, B. +7 more
openaire +4 more sources