ISBN online: 978-80-7509-844-3 | DOI: 10.11118/978-80-7509-844-3
ANIMAL BREEDING 2022
9.–9. 2. 2022 Brno
- Milan Večeřa (Ed.), Daniel Falta (Ed.), Radek Filipčík (Ed.)
online: 2022, publisher: Mendel University in Brno
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Conference papers
EVALUATION OF HOLSTEIN COWS ORIGINATED FROM EMBRYO TRANSFER
M. Popelková
DOI: 10.11118/978-80-7509-844-3-0006
This thesis deals with the evaluation of milk yield of Holstein cows that come from embryotransfer (ET). All data for the experiment evaluation was obtained from an agricultural cooperative, which is located in the region Pardubice. In the experiment, we evaluated the performance of daughters from embryo transfer and compared their performance with their peers (not from ET) born in the same stable and the same years. Performance evaluation was obtained during the first and second lactation. From the results, where the production performance is compared, it was evident that there was no statistically significant difference in production difference between dairy cows from ET and their peers.
RELATIONSHIP OF SELECTED PARAMETERS OF DAIRY COW'S REARING ENVIRONMENT TO THE CONTENT OF MINOR COMPONENTS IN THEIR MILK
J. Sklenář, M. Večeřa, G. Chládek, T. Kopec, O. Kadlec
DOI: 10.11118/978-80-7509-844-3-0008
The aim of this research is to compare the performance of Czech fleckvieh cattle cows at the 1st to 5th lactation. The group of cows on the 5th lactation includes animals on the 5th and higher lactation. In dairy cows, parameters such as: fat, protein, lactose, somatic cells, citric acid, urea, etc. are evaluated. The data were obtained from approximately 770 cows of the Czech fleckvieh cattle. A total of 5944 samples from the performance check have been evaluated so far.