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Information × Registration Number 0220U104572, 0116U001248 , R & D reports Title Set the general conformities to the law of inheritance and changes of valuable biological signs of the grey Ukrainian breed of cattle under action of natural and artificial selection popup.stage_title Head Humennyi Volodymyr D, Registration Date 23-12-2020 Organization State Institution Institute of Grain crops of NAAS of Ukraine popup.description2 The gene pool herd of the Gray Ukrainian breed has a 33.7 kg higher increase at live weight (LM), a slow type of growth intensity (Δt=0.343; In =0.125; Ir=0.480). Animals became smaller (height at withers (HW) 127.1 cm), narrow-bodied (width in clubs (WC) 52.1, chest girth (СG) 178.3), elongated (indirect body length (IBL) 151.8 cm). Cows have a phenotypic diversity compared to those who lost breast depth (BD) (K1=0.10 vs. 0.27; K2=0.07 vs. 0.29), SC (K1=0.15 vs. 0.38; K2=0,09 vs. 0.42), BAT (K1 =-0.13 vs. 0.48; K2= -0.11 vs. 0.47), CO (K1 =0.08 vs. 0.34; K2 =0.06 vs. 0.37). Bulls at the control & testing station for LW in period of early ontogenesis outperformed peers by 29-54.2 kg. Fruits for 20 years on the dynamics of mass in early ontogenesis do not differ. Recommended select bulls at 15 months, with LW 410 kg, HW 124 cm, height at the buttocks 128 cm, IBL 153 cm, chest width 39 cm and exhaust 179 cm. Modern animals in the interbody period are more consolidated compared to the departed (K1 =0.23 vs. K1 = -0.36). In animals kept on low-cost technology, fertility is 95% vs. 62%. LW18 offspring of broodstock is 343-399 kg. 33% of the herd is represented by cows of 7 lactations and above. LW18 cows of different related groups 357– 367 kg. Prepotent bulls for LW18 daughters Zapret 7915 (P2=0.37), Voron 7843 (P2 =0.36), Taran 120075093 (P2 =0.31), Ulan 1200705127 (P2=0.55), Typhun 1200451593=0.33). The formula of the conditional modern dominant cow is A1B8C1D1F2G2H1I2I3J2K1L3, estimated in 1991 – A1B1C1D1F2G2H1I2I4J2K1L3. Absolute and integrated growth rates in early ontogenesis do not differ between mothers and daughters. Mothers have a more uniform development (Ir 0,510, more 0,032), there is additive inheritance of LW at early ontogenesis. Lifetime reproductive capacity of cows 92 units, the difference between daughters and mothers for 13.67%. Heredity of growth traits gives grounds to select cows according to the meat productivity of mothers (h2 = 0.49–0.61). Product Description popup.authors popup.nrat_date 2020-12-23 Close