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Inheritance of some economic characters in Hariana cattle. II. Peak yield



Inheritance of some economic characters in Hariana cattle. II. Peak yield



Indian Jour Dairy Sci 14(3): 89-94



Average peak yield was 14.18 [plus or minus]+ 0.2 lb. with a coefficient of variation of 33.7%. Heritability of the peak yield by the intra-sire regression was obtained as 0.4032 [plus or minus].0.162 on 181 pairs of dams and daughters, 0.580 [plus or minus] 0.1936 by half-sib correlation on the above data and 0.4756 [plus or minus] 0.1217 on 322 half-sibs. Repeatability of peak yield was 0.3878. Intra-herd correlations between peak yield and milk yield and peak yield and lactation period were highly significant. Highly significant regression of milk yield and lactation period on peak yield in pound were 162 lb. and 5.2 days, respectively.

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