Relationships between conformation traits and health traits in Czech Holstein cows
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027014%3A_____%2F22%3AN0000129" target="_blank" >RIV/00027014:_____/22:N0000129 - isvavai.cz</a>
Result on the web
<a href="https://vuzv.cz/_privat/22130.pdf" target="_blank" >https://vuzv.cz/_privat/22130.pdf</a>
DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Relationships between conformation traits and health traits in Czech Holstein cows
Original language description
We evaluated conformation traits related to udder health traits in Holstein cows. The relationships among exterior, the incidence of clinical mastitis and somatic cell score were analysed in Czech Holstein cattle. Effect levels for somatic cell scores were estimated by the linear animal model. The logistic regression model was used for clinical mastitis analysis. The scoring of conformation traits was on a nine-point scale. Clinical mastitis was considered an all-or-none trait with 0 (no clinical mastitis case) and 1 (at least one clinical mastitis case). The incidence of clinical mastitis was monitored in seven lactation periods of 50 days and for the whole lactation. Somatic cell count was monitored in 10 periods of 30 days and for the whole lactation and transformed to score. The source of data was a national recording in the Czech Republic. The cases of clinical mastitis from 27,709 first lactations of 17,622 cows were recorded on 15 farms for 17 years. Pedigree involved 24,499 animals. It was strong and tight Fore Udder Attachment, intermediate and shallower Udder Depth, high Rear Udder Height, deep Central Ligament, intermediate Udder Width, Middle of quarter Front Teat Placement, intermediate Teat Length, midpoint Rear Teat Placement, and intermediate Body Condition Score. The incidence of clinical mastitis and somatic cell score significantly decreased with decreasing udder depth. Shallow udders were associated with the lowest incidence of clinical mastitis and somatic cell score. Cows with udders below the hook had the highest incidence of clinical mastitis and somatic cell score. Clinical mastitis can be included in the selection program as a new trait in the Czech Republic. This step will be preceded by national monitoring of clinical mastitis prevalence on farms. The recorded data could be used to estimate breeding values for clinical mastitis resistance.
Czech name
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Czech description
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Classification
Type
O - Miscellaneous
CEP classification
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OECD FORD branch
40203 - Husbandry
Result continuities
Project
<a href="/en/project/QK22020280" target="_blank" >QK22020280: Use of genomic selection to optimise the resilience of dairy cattle</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů