Naslov
Analysis of production traits and microclimate parameters on dairy cattle farms

Autori
Vučković, Goran ; Bobić, Tina ; Mijić, Pero ; Gavran, Mirna ; Potočnik, Klemen ; Bogdanović Vladan ; Gantner, Vesna

Izvornik
Biotechnology in Animal Husbandry (1450-9156) 35 (2019), 4; 323-334

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, ostalo

Ključne riječi
production traits ; dairy cows ; microclimate parameters

Sažetak
Aiming determination of the variability of production traits (daily milk yield and composition) and microclimate parameters (ambient temperature and humidity) in the barns ; as well as the correlation between the analyzed groups of traits, 1, 636, 192 test-day records from Simmentals and 1, 275, 713 test-day records from Holsteins were analysed. Performed analysis indicate high variability of production traits due to cow’s breed, parity as well as breeding region. Also, high variability of microclimate parameters in the barns due to season and breeding region was found. Furthermore, statistically highly significant (p < 0.001) correlations between the production traits and microclimate parameters were determined. Finally, the negative effect of inadequate microclimate on daily milk production was determined in both breeds in all breeding regions. Since genetic evaluation and selection of dairy cattle for heat resistance is only long-term method for heat stress managing, determined effect will be taken into account in the statistical model for estimation of genetic parameters and breeding values.

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija), Biotehnologija

POVEZANOST RADA