scholarly journals Analysis of selected milk traits in Palestinian Holstein-Friesian cattle in relation to genetic polymorphism

2014 ◽  
Vol 8 (5) ◽  
pp. 74-85
Author(s):  
Abu Khaizaran Zyiad ◽  
Al-Razem Fawzi
Keyword(s):  
Genetic Polymorphism ◽  
Milk Traits ◽  
Holstein Friesian ◽  
Friesian Cattle

scholarly journals Genetic Polymorphism of SCD1 Gene of Holstein-Friesian Cows in Indonesia

2019 ◽  
Vol 24 (2) ◽  
pp. 56
Author(s):  
Ari Sulistyo Wulandari ◽  
HD Rahayu ◽  
SD Volkandari ◽  
N Herlina ◽  
S Anwar ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Genetic Polymorphism ◽  
Breeding Strategy ◽  
Holstein Friesian ◽  
Pcr Rflp ◽  
Hardy Weinberg Equilibrium ◽  
Molecular Selection ◽  
Friesian Cattle ◽  
Selection Of ◽  
Friesian Cows

<p class="abstrak2">Stearoyl-Coenzyme A desaturase 1 (SCD1) belongs to the fatty acid family of desaturases. In lactating ruminants, the SCD1 protein is highly expressed in the mammary gland and is relevant for the fatty acid composition of milk and dairy products. Polymorphism of SCD1 gene in Holstein-Friesian (HF) cows could be used as a basis of molecular selection of cattle in order to increase their productivity. The aim of this study was to investigate the polymorphism of SCD1 gene of Holstein-Friesian cows in Indonesia. A total of 162 blood samples of HF cows were collected from four different locations i.e. Bogor, Sukabumi, Tasikmalaya and Enrekang districts. Genotyping of SCD1 gene used PCR-RFLP method with NcoI restriction enzyme. The result showed that three genotypes (AA, AV and VV) and two alleles (A and V) have successfully found and polymorphic. A allele was dominant in all populations (0.63) and in Hardy Weinberg Equilibrium. The highest A allele was found in Sukabumi (0.78) and the lowest was in Bogor (0.55). Heterozigosity observed and expected reached 0.471 and 0.470, respectively. In conclusion, genetic polymorphism was found in all population with dominant of A allele. This finding can be used as a early genetic information of Holstein-Friesian cattle in Indonesia and to build breeding strategy for improving of productivity especially improving of healthy fat milk. </p><p class="abstrak2"><span><br /></span></p>

scholarly journals A comparison of different methods of estimating sire transmitting ability of some milk traits in a herd of Holstein Friesian cattle

2000 ◽  
Vol 43 (2) ◽  
pp. 115-122
Author(s):  
H. Atil ◽  
A. S. Khattab
Keyword(s):  
Least Squares ◽  
Milk Yield ◽  
Lactation Period ◽  
Milk Traits ◽  
Linear Unbiased Prediction ◽  
Age At First Calving ◽  
Holstein Friesian ◽  
Genetic And Phenotypic Correlations ◽  
Best Linear Unbiased ◽  
Friesian Cattle

Abstract. A total of 1931 normal first lactation records of Holstein Friesian cows kept at Dena Farm in Egypt during the period from 1987 to 1994 were used to estimate phenotypic and genetic parameters for 90 day milk yield (90 dMY), 305 day milk yield (305 dMY) and lactation period (LP). In addition, 76 bulls with at least ten daughters were used to compare three methods of sire transmitting ability. A least Squares analysis of variance show significant effect of month and year of calving and age at first calving for different traits studied, except the effect of age at first calving on LP. Heritability estimates for 90 dMY, 305 dMY and LP were 0.39 ± 0.08, 0.27 ± 0.07 and 0.14 ± 0.05, respectively. Genetic and phenotypic correlations between different traits were positive and significant. Sires with at least ten daughters were evaluated by best linear unbiased prediction (BLUP), least Squares means (LSM) and regression of the future daughters mean on the present daughters mean. The product moment correlations between different traits studied were positive and high (= 0.96).

Genetic Analysis for Milk Traits in Different Herds of Holstein Friesian Cattle in Turkey

2001 ◽  
Vol 1 (8) ◽  
pp. 737-741 ◽  
Author(s):  
Hulya Atil ◽  
A. Salah Khattab . ◽  
Cigdem Yakupoglu .
Keyword(s):  
Genetic Analysis ◽  
Milk Traits ◽  
Holstein Friesian ◽  
Friesian Cattle

The influence of BoLA-DRB3 alleles on incidence of clinical mastitis, cystic ovary disease and milk traits in Holstein Friesian cattle

2018 ◽  
Vol 45 (5) ◽  
pp. 917-923 ◽  
Author(s):  
Joanna Pokorska ◽  
Dominika Kułaj ◽  
Magdalena Dusza ◽  
Andrzej Ochrem ◽  
Joanna Makulska
Keyword(s):  
Clinical Mastitis ◽  
Milk Traits ◽  
Cystic Ovary ◽  
Holstein Friesian ◽  
Friesian Cattle

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

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

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

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.

The Effect of Polymorphism in PGLYRP1 Gene on the Productivity and Health Traits in Holstein-Friesian Cattle

2020 ◽  
Vol 56 (3) ◽  
pp. 333-338
Author(s):  
P. Sablik ◽  
A. Klenowicz ◽  
M. Szewczuk ◽  
A. Olszewski ◽  
A. Dybus
Keyword(s):  
Holstein Friesian ◽  
Friesian Cattle

Paratuberculosis in Holstein-Friesian cattle farms in Central Iran

2007 ◽  
Vol 40 (3) ◽  
pp. 169-173 ◽  
Author(s):  
Amir H. Shahmoradi ◽  
Reza Arefpajohi ◽  
Keyvan Tadayon ◽  
Nader Mosavari
Keyword(s):  
Central Iran ◽  
Holstein Friesian ◽  
Cattle Farms ◽  
Friesian Cattle
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