Relationship between milk urea level and milk parameters in the saanen dairy goat
Čobanović, Ksenija (https://orcid.org/0000-0003-3810-9602) | Krstović, Saša (https://orcid.org/0000-0001-9347-4886) | Štrbac, Ljuba | Šaran, Momčilo | Kasalica, Anka | Popović, Milka
The aim of this study was to determine the urea level in Saanen goat milk and examine the relationship between milk urea (MU) level and daily milk yield (DMY), milk fat, protein, lactose and solids non-fat (SNF) percentage in dairy goats. The observation was made on 1492 samples of milk control of Saanen goats in the period from March to November 2019. The samples were categorized into four groups based on MU level: I Group 10–20 mg/dl, II group 20.01–30.00 mg/dl, III group 30.01–40.00 mg/dl, IV group >40.01mg/dl. Analyses of raw milk samples were carried out on the FOSS instruments MilcoScan in Laboratory for Milk Quality Control, at the Faculty of Agriculture, Department of Animal Science. Descriptive statistic was done using program Statistica 13.5. The goats on the observed farm were reared in a closed system with balanced diet throughout the whole year. The study showed statistically highly significant differences (P<0.01) among MU groups for all milk parameters. The MU concentration was positively correlated (P<0.01) with fat (%), protein (%), lactose (%) and SNF (%), while it was negatively correlated only with DMY (kg).
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