Naslov
The effect of season on the estimated prevalence risk of mastitis in Holstein first parity cows using precision dairy cattle technologies

Autori
Jožef, Ivana ; Solić, Drago ; Lončarić, Zdenko ; Steiner, Zvonimir ; Gantner, Vesna

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, pp prezentacija, znanstveni

Skup
International Conference AgroFood

Mjesto i datum
Rzeszów, Poljska, 19.11.2020

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
mastitis ; prevalence risk ; indirect estimation ; lactose ; dairy cattle ; milk recording

Sažetak
The mastitis that is inflammation of the udder of dairy animal causes significant losses in dairy farm business due to reduced milk production, deterioration of individual quarters or the entire udder, which precludes animals from premature production, death and high treatment costs. The possibility of early detection of mastitis represents important tool for the improvement of farm management and the prevention of the development of the clinical form of mastitis and the consequent costs in milk production. The milk recording data, as a result from monthly performed milk recording on a state level, enable the application of precision dairy cattle technologies. That means estimation and early detection based on some parameters of the analysis of milk samples. According to numerous studies, the daily lactose content is related with the number of somatic cells in milk. For instance, daily lactose content < 4.5% is an indicator of the prevalence risk of mastitis. The aim of this research was to determine the variability of daily milk lactose content and somatic cell count and consequently the prevalence risk of mastitis in Holstein first parity cows in Eastern Croatia depending on the season based on the results of milk recording that is using the precision dairy cattle technologies. The research results indicate that the variability of daily lactose content and somatic cell count, as well as prevalence of mastitis in Holstein first parity cows depends of daily milk production, stage of lactation, age at first calving, and season of milk recording, and cattle breed. Therefore, those effects should be taken into account in the statistical model for estimation of the mastitis prevalence risk in dairy cows based on milk recording data.

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija)

POVEZANOST RADA