Recent development of allele frequencies and exclusion probabilities of microsatellites used for parentage control in the German Holstein Friesian cattle population

Abstract The aim of this paper was to verify the hypothesis whether carriers of genetic defect Brachyspina occur in the Polish Holstein-Friesian Cattle. PCR method was used to screen 78 Polish Holstein-Friesian bulls. Eight bulls were identified as heterozygotes for 3,3 kb deletion in the FANCI gene – the mutation causing Brachyspina defect. All carriers were sons of 3 sires: Cleitus Jabot, Sandy-Valley Bolton ET and Coyne-Farms Dorcy ET which were descendants of the US sire Sweet Haven Tradition (HOUSAM 1682485). Systematic screening of young bulls having in the pedigree Barchyspina carrier is necessary to prevent spreading of the recessive mutation in the dairy cattle population in Poland.

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Short Communication: New alleles at the BoLA-DQA1 locus in Holstein–Fresian cattle

Canadian Journal of Animal Science ◽

10.4141/cjas-2014-147 ◽

2015 ◽

Vol 95 (2) ◽

pp. 161-164

Author(s):

Dominika Kułaj ◽

Joanna Pokorska ◽

Marian Ormian ◽

Magdalena Dusza

Keyword(s):

Short Communication ◽

Cattle Population ◽

Sequencing Technology ◽

Next Generation Sequencing Technology ◽

Holstein Friesian ◽

Dqa1 Locus ◽

First Time ◽

Friesian Cattle ◽

Generation Sequencing ◽

New Alleles

Kułajaj, D., Pokorska, J., Ormian, M. and Dusza, M. 2015. Short Communication: New alleles at the BoLA-DQA1 locus in Holstein Fresian cattle. Can. J. Anim. Sci. 95: 161–164. The aim of the study was to analyze genetic polymorphism at locus BoLA-DQA1 in Polish Holstein-Friesian cattle, using next generation sequencing technology (Miseq sequencer – Illumina). In the studied cattle population we identified 14 alleles, of which three were determined for the first time (BoLA-DQA1*0106, BoLA-DQA1*3201, BoLA-DQA1*3301). The frequencies of these alleles were respectively: 0.0423, 0.0282, 0.0282. At locus BoLA-DQA1 the highest frequency was found for the BoLA-DQA1*10011 and BoLA-DQA1*0101 alleles and their frequencies were respectively: 0.3592 and 0.2606. The frequencies of other alleles identified in the studied population ranged from 0.0070 to 0.0704. The results obtained in this study indicate that the BoLA-DQA1 locus is highly polymorphic and new alleles are still identifiable.

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Allele and Genotype Frequencies of the Κappa-Casein (CSN3) Locus in Macedonian Holstein-Friesian Cattle

Macedonian Veterinary Review ◽

10.2478/macvetrev-2020-0013 ◽

2020 ◽

Vol 43 (1) ◽

pp. 45-54

Author(s):

Nikola Adamov ◽

Branko Atanasov ◽

Ksenija Ilievska ◽

Martin Nikolovski ◽

Monika Dovenska ◽

...

Keyword(s):

Laboratory Method ◽

Allele Frequencies ◽

Fixation Index ◽

Genotype Frequencies ◽

Holstein Friesian ◽

Target Dna ◽

The Republic ◽

Friesian Cattle ◽

Genotype And Allele Frequencies ◽

Cheese Production

AbstractThe bovine kappa-casein (κ-CN) is a phospho-protein with 169 amino acids encoded by the CSN3 gene. The two most common gene variants in the HF breed are CSN3*A and CSN3*B while CSN3*E has been found with lower frequency. The aim of this study was to optimize a laboratory method for genotyping of these three alleles as well as to determine their genotype and allele frequencies in the HF cattle population in the Republic of North Macedonia. Genomic DNA was extracted from full blood from 250 cows. The target DNA sequence was amplified with newly designed pair of primers and the products were subjected to enzymatic restriction with HindIII and HaeIII endonucleases. Genotype determination was achieved in all animals. The primers successfully amplified a fragment of 458 bp and the digestion of this fragment with both endonucleases enabled differentiation of five different genotypes with the following observed frequencies: AA (0.39), AB (0.29), BB (0.16), AE (0.10), and BE (0.06). The estimated allele frequencies were: CSN3*A (0.584), CSN3*B (0.336) and CSN3*E (0.08). The observed genotype frequencies differed significantly (P<0.01) from those that would be expected under HW equilibrium, while the fixation index (F=0.17) indicated moderate heterozygosity deficiency. Nevertheless, the CSN3*B allele was present with relatively high frequency which should be used to positively select for its carriers, since increasing its frequency could help to improve the rheological properties of the milk intended for cheese production.

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Visual identification of individual Holstein-Friesian cattle via deep metric learning

Computers and Electronics in Agriculture ◽

10.1016/j.compag.2021.106133 ◽

2021 ◽

Vol 185 ◽

pp. 106133

Author(s):

William Andrew ◽

Jing Gao ◽

Siobhan Mullan ◽

Neill Campbell ◽

Andrew W. Dowsey ◽

...

Keyword(s):

Metric Learning ◽

Visual Identification ◽

Holstein Friesian ◽

Deep Metric Learning ◽

Friesian Cattle

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Meat quality and carcass characteristics of Norwegian dairy and Holstein-Friesian cattle

Proceedings of the British Society of Animal Science ◽

10.1017/s1752756200020135 ◽

2007 ◽

Vol 2007 ◽

pp. 110-110

Author(s):

R.M. Kirkland ◽

D.C. Patterson ◽

B.W. Moss ◽

T.W.J. Keady ◽

R.W.J. Steen

Keyword(s):

Meat Quality ◽

Production Systems ◽

Carcass Characteristics ◽

Quality Parameters ◽

Quality Characteristics ◽

Production Data ◽

Dairy Traits ◽

Holstein Friesian ◽

Friesian Cattle ◽

Norwegian Dairy

Any evaluation of breeds or production systems for beef must consider effects on production, carcass and meat quality characteristics. Holstein-Friesian (HF) cattle are bred for dairy traits only, while Norwegian dairy cattle (NOR) have been selected with some emphasis on beef characteristics. A comparison of production data from bulls of these two breeds has been presented previously (Kirkland et al., 2005). The objective of the present study was to evaluate specific carcass and meat quality parameters of HF and NOR bulls.

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