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  • Additive genetic and environmental variance components for milk traits in goat with test day model = Aditivne genetske in okoliške komponente (ko)variance za lastnosti mlečnosti na dan kontrole pri kozah
    Brežnik, Suzana ...
    Genetic and environmental dispersion parameters for dailzy milk yield (DMZ), fat (FC), protein (PC) and lactose contents (LC) were estimated on 1805 does of Alpine and Saanen breed. During the period ... 1991-1996, 24044 monthly test days were obtained from 57 herds in Slovenia. (Co)variance components for random effects and residual were estimated by REML using Powell's algorithm. The models contained season (year-month interaction) and breed as fixed effects, litter size, day of lactation and parity as independent variables, and common flock, permanent environment and additive genetic effect (animal) as random effects. Heritability for DMY was 0.19 - 0.20, for FC was 0.16 - 0.18, for PC was 0.21 - 0.24, and for LC was 0.21 - 0.23. The greatest part of phenotypic variance of FC, PC and LC remained in residual. FCand PC had a negative genetic correlation with DMZ (-0.32 and -0.41). Correlation between FC and PC was positive (+0.57), as between PC and LC (+0.27).
    Vir: Zbornik Biotehniške fakultete Univerze v Ljubljani. Kmetijstvo. Zootehnika = Research reports [of the] Biotechnical Faculty University of Ljubljana. Agricultural issue. Zootechnica. - ISSN 1408-3434 (Letn. 76, št. 1, maj 2000, str. 61-66)
    Vrsta gradiva - članek, sestavni del
    Leto - 2000
    Jezik - angleški
    COBISS.SI-ID - 977544

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