2019
DOI: 10.33245/2310-9289-2019-150-2-33-42
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Characteristics of half-siblings cows’ by growth and milk productivity

Abstract: It is proved that the live weight of replacement heifers, the intensity of their formation and milk productivity in primiparous cows depends on father origin, in particular, the value of the index of live weight formation between groups of half-siblings ranges from 68,9 to 82.3 (for comparing ages 6–0 and 12–6 months), from 15,1 to 18,4 (6–3 and 9–6 months), from 23,8 to 28,6 (6–3 and 12–9 months); average daily growth rate in the age of 0–12 months – from 659 to 717 g, 12–18 months – from 500 to 585 g; live w… Show more

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Cited by 2 publications
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“…However, they lack knowledge on how to manage genetic diversity of classes created as a result of rotational crossbreeding (Quénon & Magne, 2021). Crossbreeding in dairy livestock farming, which has recently been used actively, needs additional knowledge about how to use diversity of genotypes developed by rotational crossbreeding (Siriak et al, 2019;Dynko et al, 2021;. In recent years, some farms have been practicing test cross of the domestic breeds by mating Black-and Red-Spotted dairy cows to sires of Holstein, Montbeliard and Norwegian Red breeds (Bashchenko et al, 2021).…”
Section: Introductionmentioning
confidence: 99%
“…However, they lack knowledge on how to manage genetic diversity of classes created as a result of rotational crossbreeding (Quénon & Magne, 2021). Crossbreeding in dairy livestock farming, which has recently been used actively, needs additional knowledge about how to use diversity of genotypes developed by rotational crossbreeding (Siriak et al, 2019;Dynko et al, 2021;. In recent years, some farms have been practicing test cross of the domestic breeds by mating Black-and Red-Spotted dairy cows to sires of Holstein, Montbeliard and Norwegian Red breeds (Bashchenko et al, 2021).…”
Section: Introductionmentioning
confidence: 99%