Environmental factors affecting milk composition in Holstein cattle breed Environmental factors affecting milk composition in Holstein cattle breed El En

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28 janvier 2022

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https://ejournals.epublishing.ekt.gr/index.php/jhv [...]

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Copyright (c) 2022 K ČOBANOVIĆ, M PAJIĆ, M RADINOVIĆ, M SIMONOVIĆ, CS CSORBA, D KUČEVIĆ, ZS BECSKEI , https://creativecommons.org/licenses/by-nc/4.0

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somatic cell count milk urea season parity stage of lactation somatic cell count milk urea season parity stage of lactation

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Carbamide Dairies Dairy Dairies Dairy products plants Dairy

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K ČOBANOVIĆ et al., « Environmental factors affecting milk composition in Holstein cattle breed », eJournals, ID : 10670/1.26c86g

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The incidence of mastitis in dairy herds is one of the main difficulties faced by dairy farmers, with a negative effect on the productivity of the herd and the welfare of the animals. Somatic cell count in milk is an indicator of udder health and frequency of clinical and subclinical mastitis incidence in dairy herds, and it is also often used to determine quality payments to dairy producers. Milk urea can be an indicator of the nutritional status of the dairy cows. The interpretation of these parameters assists in making important management decisions with regards to the health status and nutrition of dairy cattle. The objective of this study was to identify and evaluate environmental factors (farm, season, parity and stage of lactation) which affect the milk production and composition of Holstein breed, using field data. The presented research included 25,460 individual milk samples which were analysed as part of the Dairy Herd Improvement program, from 11 Holstein dairy farms in the region of Vojvodina, Northern Serbia. Analyses of raw milk samples were carried out on the FOSS instruments - CombiFossTMFT+, a combination instrument consisting of the MilcoScanTMFT+ and the FossomaticTMFC. Statistical data processing was carried out by applying General Linear Model procedure, Statistics 13. Farm, season of milk control, parity and stage of lactation were included in the models as fixed effects. Significant differences in milk urea concentrations and somatic cell count were observed between farms (P

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