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Ocena poziomu cech osobniczych i wskaźnika masywności u buhajów czarno-białych w zależności od dolewu krwi rasy holsztyńsko-fryzyjskiej

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Kawczynska M., Kamieniecki H.

Zeszyty Problemowe Postępów Nauk Rolniczych

1990

tom 395

The most cases of statistically significant differences between bull calves of different were found in rearing stations where the traits formed at a more favourable level. The investigated traits for all genotype groups of bulls assumed significantly different values in particular years of rearing. Crosses (BW × HF) reached higher body weight and higher daily weight gains than the inland BW bulls. The height at withers depended on the genotype and the interaction: genotype x rearing year. The bulls were the taller the greater was the HF blood addition. The chest girth depended on the genotype and rearing year The smallest was recorded in the BW bulls. The measurement coefficient depended, first of all, on the genotype. The highest values of this index were found for BW bulls; the higher was the HF blood addition the lower was the massiveness index. To the A and B class the lowest number of BW bulls was assigned, whereas the highest number of bulls assigned to these classes was of bulls of the genotype of 50% and 75% HF.

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1 Zeszyty Problemowe Postępów Nauk Rolniczych

1 Kamieniecki H.

1 Kawczynska M.

1 1990

Wyniki wyszukiwania

Ocena poziomu cech osobniczych i wskaźnika masywności u buhajów czarno-białych w zależności od dolewu krwi rasy holsztyńsko-fryzyjskiej