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, László Bognár
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
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
DAIRY PERFORMANCE CHARACTERISTICS OF HOLSTEIN AND ITS CROSSES WITH EUROPEAN FRIESIAN IN A LARGE COMMERCIAL HERD IN EGYPT [PDF]
Journal of Animal and Poultry Production, 2006 The present study aimed at testing the effect of using Holstein germ plasm to improve productivity and longevity of European Friesian in Egypt. This was conducted by comparing performance of the crossbreds of Holstein x Friesian (HF) with that of ...
M. Morsy +4 more
doaj +1 more source
Indian Journal of Animal Sciences, 2021 Cholesterol deficiency is a new monogenic autosomal recessive inherited defect in Holstein cattle and is associated with chronic and recurrent diarrhea followed by death of calves during the first six months of life.
ANSHUMAN KUMAR +7 more
doaj +1 more source
Animals, 2021 This study investigated the effects of MUN and climatological factors on the inter calving period (ICP), reproductive performance (RP%), and reproductive index (RI) in Holstein Friesian (n = 1177) and Jersey cows (n = 3305) in different seasons in the ...
Edward Cottington Webb, Elandri de Bruyn
doaj +1 more source