scholarly journals DEPENDENCIES BETWEEN PIT-1 GENE POLYMORPHISM AND PRODUCTION PROGRESS IN POLISH HOLSTEIN-FRIESIAN BLACK-AND-WHITE COWS

2017 ◽  
Vol 338 (44) ◽  
pp. 159-170
Author(s):  
Jarosław PYTLEWSKI ◽  
◽  
Ireneusz R. ANTKOWIAK ◽  
Daniel STANISŁAWSKI ◽  
Ewa Czerniawska-Piątkowska ◽  
...  
Keyword(s):  
Gene Polymorphism ◽  
Black And White ◽  
Holstein Friesian

CATHL2 gene polymorphism in relation to production traits in Holstein-Friesian cows

2019 ◽  
Vol 15 (2) ◽  
pp. 23-30
Author(s):  
Sonia Hiller ◽  
Inga Kowalewska-Łuczak ◽  
Ewa Czerniawska-Piątkowska
Keyword(s):  
Statistical Analysis ◽  
Gene Polymorphism ◽  
Somatic Cell Count ◽  
The Other ◽  
Production Traits ◽  
Black And White ◽  
Potential Association ◽  
Holstein Friesian ◽  
Pcr Rflp ◽  
Friesian Cows

The aim of this study was to identify SNPs mutations in the CATHL2 gene and determine their potential association with dairy performance traits in Polish Black-and-White Holstein-Friesian (phf) cows. Genotypes of individuals were identified by PCR-RFLP. The frequencies of CATHL2/DdeI alleles were C ‒ 0.693 and T ‒ 0.307, and for CATHL2/HhaI polymorphisms, G ‒ 0.763 and C ‒ 0.237. The statistical analysis showed that cows with the CC (CATHL2/DdeI) and CG (CATHL2/HhaI) genotype produced higher milk yield than the other cattle genotypes. In the case of CATHL2/DdeI and CATHL2/HhaI polymorphisms, the highest somatic cell count was found in heterozygous CT and CG cows.

A dependency between PRL gene polymorphism and breeding parameters in Polish Black-and-White Holstein-Friesian cows

2020 ◽  
pp. 1-7
Author(s):  
Jarosław Pytlewski ◽  
Ireneusz Antkowiak ◽  
Ewa Czerniawska-Piątkowska ◽  
Alicja Kowalczyk
Keyword(s):  
Gene Polymorphism ◽  
Breeding Parameters ◽  
Black And White ◽  
Holstein Friesian ◽  
Prl Gene ◽  
Friesian Cows

scholarly journals Associations between bovine lactoferrin gene polymorphism and somatic cell count in milk

2012 ◽  
Vol 51 (No. 1) ◽  
pp. 14-20 ◽  
Author(s):  
K. Wojdak-Maksymiec ◽  
M. Kmiec ◽  
J. Ziemak
Keyword(s):  
Gene Polymorphism ◽  
Somatic Cell ◽  
Cell Count ◽  
Somatic Cell Count ◽  
Bovine Lactoferrin ◽  
Logarithmic Scale ◽  
Black And White ◽  
Holstein Friesian ◽  
Pcr Rflp ◽  
Lactoferrin Gene

The study included 124 Polish Black-and-White dairy cows of various share of the Holstein-Friesian (HF) breed. Lactoferrin (LTF) gene polymorphism was obtained with PCR-RFLP method using EcoRI enzyme. Two alleles of LTF, A and B, were found in the studied population. Their frequencies were 67.74% and 32.56%, respectively. The alleles controlled the occurrence of three genotypes: AA, BB and AB, of frequencies equal to 37.90%, 2.42% and 59.68%, respectively. It was established that statistically significant associations exist between the somatic cell count (SCC) and LTF genotype, lactation month and parity as well as the HF gene share. No significant association was found between somatic cell count and season. The highest somatic cell count (transformed to a logarithmic scale) was found in milk of the AB genotype, whereas the lowest one was found in cows of the AA genotype.

scholarly journals DEPENDENCIES BETWEEN PRL GENE POLYMORPHISM AND PRODUCTION PROGRESS IN POLISH HOLSTEIN-FRIESIAN BLACK-AND-WHITE COWS

2017 ◽  
Vol 338 (44) ◽  
pp. 171-180
Author(s):  
Jarosław PYTLEWSKI ◽  
◽  
Ireneusz R. ANTKOWIAK ◽  
Daniel STANISŁAWSKI ◽  
Ewa Czerniawska-Piątkowska ◽  
...  
Keyword(s):  
Gene Polymorphism ◽  
Black And White ◽  
Holstein Friesian ◽  
Prl Gene

scholarly journals Effect of the bovine TG5 gene polymorphism on milk- and meat-producing ability

2020 ◽  
Vol 13 (10) ◽  
pp. 2046-2052
Author(s):  
I. Dolmatova ◽  
T. Sedykh ◽  
F. Valitov ◽  
R. Gizatullin ◽  
D. Khaziev ◽  
...  
Keyword(s):  
Gene Polymorphism ◽  
Fat Metabolism ◽  
Fat Content ◽  
Milk Productivity ◽  
Clear Trend ◽  
Black And White ◽  
Republic Of Bashkortostan ◽  
The Republic ◽  
Productivity Indicators ◽  
Meat Productivity

Aim: This study aimed to determine the effect of thyroglobulin (TG5) gene polymorphism on milk and meat productivity in the various cattle breeds currently bred in the Republic of Bashkortostan. Materials and Methods: The test was performed on dairy cattle of Black-and-White, Bestuzhev, and Simmental breeds, and meat cattle of Hereford and limousine breeds. The purpose of the test was to search for associations between the polymorphic alleles of the thyroglobulin (TG5) gene and economically useful traits. Results: All studied breeds showed a frequency predominance of the TG5C allele (from 0.56 to 0.71). A clear trend of an effect of the genotypes of the TG5 gene on milk-productivity indicators was revealed; cows with the TG5TT genotype have the highest milk yield and fat content in milk. The milk of cows of Bestuzhev and Simmental breeds that possessed this genotype was also characterized by higher protein content. Conclusion: We identified an effect of the polymorphism of the TG5 gene in the Hereford and limousine breeds on fat metabolism intensity indicators, such as fat output and fat content, in the longissimus muscle and in the general sample of ground beef.

scholarly journals Inbreeding in a Population of Polish Holstein-Friesian Young Bulls Before and After Genomic Selection

2020 ◽  
Vol 20 (1) ◽  
pp. 71-83
Author(s):  
Piotr Topolski ◽  
Wojciech Jagusiak
Keyword(s):  
Genomic Selection ◽  
Linear Trend ◽  
Pedigree Analysis ◽  
Breeding Programme ◽  
Black And White ◽  
Holstein Friesian ◽  
Before And After ◽  
Breeding Programmes ◽  
Dynamics Of Population ◽  
The Mean

AbstractInbreeding was analysed in a population of 14,144 Polish Black-and-White Holstein-Friesian (PBWHF) young bulls born between 1994 and 2017 and bred under both conventional and genomic breeding programmes. The inbreeding coefficients were computed using a model with genetic groups, according to the algorithm given by VanRaden. It was found that in the analysed population all bulls are inbred (100% of the population), with the mean coefficient of inbreeding ranging from 0.09% to 26.95%. Pedigree analysis also showed a relationship between the changing number of bulls over the years and the dynamics of population inbreeding. These trends are connected with changes in the breeding scheme, related to the implementation of genomic selection in the breeding programme for PBWHF cattle in 2014. The increasing number of weaned young bulls in Poland was paralleled by a fairly consistent increase in the mean inbreeding, but the inbreeding dynamics were relatively small. A reverse trend was observed in the group of young bulls born after 2013. As the number of bulls very rapidly decreased in successive birth years, the mean inbreeding for successive birth-year groups very rapidly increased. As a result, the estimated linear trend was equal to 0.02% inbreeding per year of birth in the group of bulls raised before genomic selection (~20 birth-year) whereas in the group of bulls raised after genomic selection (~4 birth-year) the trend was much higher and amounted to 0.56% inbreeding per year of birth. The high mean inbreeding found in the group of the genomically selected young bulls may translate into higher inbreeding in the whole population of PBWHF cattle, because these bulls are now intensively used as sires. The results of our study also show that the implementation of genomic selection in the breeding programme caused a very rapid increase in the inbreeding rate per birth-year in young bulls.

scholarly journals The effect of colostral supplement on the serum protein fractions, health status and growth of calves

2011 ◽  
Vol 54 (2) ◽  
pp. 115-126 ◽  
Author(s):  
M. Szewczuk ◽  
E. Czerniawska-Piątkowska ◽  
S. Palewski
Keyword(s):  
Total Protein ◽  
Gamma Globulin ◽  
Poor Quality ◽  
Favourable Effect ◽  
Control Group ◽  
Health State ◽  
Globulin Fraction ◽  
Black And White ◽  
Time Period ◽  
Holstein Friesian

Abstract. The study aimed at evaluation of the effect of colostral supplement on humoral immunity, growth and health state of calves until the 3rd month of life. Examinations were carried out on 40 Polish Black-and-White Holstein-Friesian calves. After birth, the calves were separated into two groups (20 calves each): control group – without addition of colostral supplement, and experimental one – with colostral supplement in diet. Blood was sampled from each calf on day 5 and 30 of life, and total protein, albumin, and alpha, beta and gamma globulin levels were determined in it. Evaluation of calves’ growth and development course was carried out basing on weighing and daily gain results. The favourable effect of colostral supplement on calves’ health state and body weight gains was found. No significant effect of colostral supplement on total protein level or gamma-globulin fraction level was found. The effect of colostral supplement on reduction of alpha-globulin fraction decrease was found in a time period until the 30th day of calves’ life (P≤0.01). The study so far point to the purposefulness of using this supplement, in particular in the case of colostrum deficiency or its poor quality.

scholarly journals A Comprehensive Analysis of Runs of Homozygosity of Eleven Cattle Breeds Representing Different Production Types

Animals ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 1024 ◽  
Author(s):  
Tomasz Szmatoła ◽  
Artur Gurgul ◽  
Igor Jasielczuk ◽  
Tomasz Ząbek ◽  
Katarzyna Ropka-Molik ◽  
...  
Keyword(s):  
High Frequency ◽  
Production Traits ◽  
Runs Of Homozygosity ◽  
White Variety ◽  
Black And White ◽  
Cattle Breeds ◽  
Hereford Cattle ◽  
Holstein Friesian ◽  
Genomic Inbreeding ◽  
The Impact

In the presented research, BovineSNP50 microarrays (Illumina) were applied to determine runs of homozygosity in the genomes of 11 cattle breeds maintained in Poland. These cattle breeds represent three basic utility types: milk, meat and dual purpose. Analysis of runs of homozygosity allowed the evaluation of the level of autozygosity within each breed in order to calculate the genomic inbreeding coefficient (FROH), as well as to identify regions of the genome with a high frequency of ROH occurrence, which may reflect traces of directional selectin left in their genomes. Visible differences in the length and distribution of runs of homozygosity in the genomes of the analyzed cattle breeds have been observed. The highest mean number and mean sums of lengths of runs of homozygosity were characteristic for Hereford cattle and intermediate for the Holstein-Friesian Black-and-White variety, Holstein-Friesian Red-and-White variety, Simmental, Limousin, Montbeliarde and Charolais breeds. However, lower values were observed for cattle of conserved breeds. Moreover, the selected livestock differed in the level of inbreeding estimated using the FROH coefficient. In regions of the genome with a high frequency of ROH occurrence, which may reflect the impact of directional selection, a number of genes were observed that can be potentially related to the production traits which are under selection pressure for specific production types. The most important detected genes were GHR, MSTN, DGAT1, FABP4, and TRH, with a known influence on the milk and meat traits of the studied cattle breeds.

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