Zobrazeno 1 - 10
of 40
pro vyhledávání: '"Michaela Brzáková"'
Publikováno v:
Czech Journal of Animal Science, Vol 67, Iss 9, Pp 349-355 (2022)
The objective of the present study was to estimate the genetic parameters for the scrotal circumference of bulls of beef breeds in the Czech Republic. The used database for the years 1996-2020 comprised information on the scrotal circumference measur
Externí odkaz:
https://doaj.org/article/0178e33acd7c47ca949c2ad3b99c528d
Autor:
Jindřich Čítek, Michaela Brzáková, Lenka Hanusová, Oto Hanuš, Libor Večerek, Eva Samková, Eva Jozová, Irena Hoštičková, Jan Trávníček, Martin Klojda, Lucie Hasoňová
Publikováno v:
Animal Bioscience, Vol 35, Iss 1, Pp 13-21 (2022)
Objective The aim of the study was to evaluate the influence of gene polymorphisms and nongenetic factors on the somatic cell score (SCS) in the milk of Holstein (n = 148) and Simmental (n = 73) cows and their crosses (n = 6). Methods The SCS was cal
Externí odkaz:
https://doaj.org/article/bcead6a559474f27a204384d10248849
Autor:
Jindřich Čítek, Eva Samková, Michaela Brzáková, Oto Hanuš, Libor Večerek, Irena Hoštičková, Eva Jozová, Lucie Hasoňová, Karolína Hálová
Publikováno v:
Animals, Vol 13, Iss 13, p 2079 (2023)
We evaluated the influence of CSN1S1 and LALBA polymorphisms on cow’s milk yield and quality. The analysis was done on Czech Simmental and Holstein cows. Non-genetic factors were included as well. CSN1S1 did not influence the milk performance in th
Externí odkaz:
https://doaj.org/article/5eb794bb1bf94ca38533e6c7b2ec71aa
Autor:
Michaela Černá, Ludmila Zavadilová, Luboš Vostrý, Jiří Bauer, Jiří Šplíchal, Jan Vařeka, Daniela Fulínová, Michaela Brzáková
Publikováno v:
Animals, Vol 13, Iss 7, p 1188 (2023)
The genetic parameters for the survival of Holstein cows, analysed in nine consecutive time periods during the first three calving intervals, were estimated. The earlier the animals are culled, the more they are informationally underestimated. This u
Externí odkaz:
https://doaj.org/article/e6f0f373334549038f56392a5826c800
Autor:
Jindřich Čítek, Michaela Brzáková, Lenka Hanusová, Oto Hanuš, Libor Večerek, Eva Samková, Zuzana Křížová, Irena Hoštičková, Tereza Kávová, Karolina Straková, Lucie Hasoňová
Publikováno v:
Animal Bioscience, Vol 34, Iss 1, Pp 2-11 (2021)
Objective The aim of the study was to evaluate the influence of polymorphic loci and other factors on milk performance and the technological properties of milk. Methods The analysis was performed on Simmental and Holstein cows in field conditions (n
Externí odkaz:
https://doaj.org/article/6ce396cd639e447fa51bde6508db3048
Publikováno v:
Czech Journal of Animal Science, Vol 65, Iss 12, Pp 463-472 (2020)
Genetic parameters were estimated for clinical mastitis in Czech Holstein cattle. The datasets included 14 329 cows with 28 626 lactations. Clinical mastitis was defined as 0/1 occurrence per lactation. Single- or multi-trait repeatability linear ani
Externí odkaz:
https://doaj.org/article/0788b265b5bc4e179c21486299b5e865
Publikováno v:
Czech Journal of Animal Science, Vol 65, Iss 12, Pp 445-453 (2020)
The inclusion of animal genotype data has contributed to the development of genomic selection. Animals are selected not only based on pedigree and phenotypic data but also on the basis of information about their genotypes. Genomic information helps t
Externí odkaz:
https://doaj.org/article/3674ee01b35645b4a2f2bf15409c50b8
Autor:
Luboš Vostrý, Hana Vostrá-Vydrová, Nina Moravčíková, Barbora Hofmanová, Jana Rychtářová, Karolína Machová, Michaela Brzáková, Radovan Kasarda
Publikováno v:
Czech Journal of Animal Science, Vol 65, Iss 6, Pp 224-231 (2020)
Czech local poultry breeds face high risks of extinction. Because these populations are closed, they are more likely to lose genetic diversity. The aim of this analysis was to determine the loss of genetic diversity in three Czech autochthonous poult
Externí odkaz:
https://doaj.org/article/3ae0f1802c0d4ac18566e8d94de73f47
Autor:
Jindřich Čítek, Michaela Brzáková, Lenka Hanusová, Oto Hanuš, Libor Večerek, Eva Samková, Zuzana Křížová, Irena Hoštičková, Tereza Kávová, Karolina Straková, Lucie Hasoňová
Publikováno v:
Czech Journal of Animal Science, Vol 65, Iss 1, Pp 13-22 (2020)
We analysed the correlations of milk fermentability (yogurt test acidity), renneting (time to rennet coagulation of milk protein) and results of ethanol tests (indirect indicator of milk thermostability) with the percentages of the milk components. T
Externí odkaz:
https://doaj.org/article/9af8aa5f83f748919c0e13b71a333ecf
Autor:
Jindřich Čítek, Michaela Brzáková, Jiří Bauer, Ladislav Tichý, Zuzana Sztankóová, Luboš Vostrý, Yvette Steyn
Publikováno v:
Animals, Vol 12, Iss 24, p 3522 (2022)
The aim of this study was a genome-wide association study (GWAS) on conformation traits using 25,486 genotyped Czech Holsteins, with 35,227 common SNPs for each genotype. Linear trait records were collected between 1995 and 2020. The Interbull inform
Externí odkaz:
https://doaj.org/article/73f03af7eb044a9ebe4e565066ace23c