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The effect of paragenetic factors on reproductive traits of simmental cows / Uticaj paragenetskih faktora na reproduktivne osobine krava simentalske rase
(Institute for Animal Husbandry, Belgrade, 2007)
The examination was made on the effect of systematic factors (parturition group, calving season, birth type, calf gender, and birth type-calf gender interaction) and age at first conception on the expression of reproductive ...