The aim of the experiment was to study the effect of dam and sire genotypes on the carcass traits of growing rabbits. The experiment was carried out at the Kaposvár University. Pannon White and Maternal line does were inseminated with sperm of Pannon White (P), Maternal line (M), Large body line (L), Terminal line of Hycole hybrid (H) or Coloured line (C). M, P and C were medium sized, L and H were large sized genotypes. P and L rabbits were selected by CT data for carcass traits but the other genotypes were not. Rabbits were slaughtered at 78 days of age. Examing the dam breed effect, the weight of the chilled carcass and body parts was higher in the progenies of the P does. The ratio of the hind part to reference carcass were higher in the P group (37.7 vs. 37.2%, P<0.001), however the ratio of fore part was higher in group M (26.2 vs. 26.5%, P<0.001). Examining the sire breed effect, the weights of the chilled carcass and of the carcass parts were the highest in the progenies of the H sires, and the smallest in the group M. The differences in dressing out percentage of the groups were not significant (60.0-60.8%). The ratio of the fore part to reference carcass was higher in the groups L, H and C but the ratio of the middle part did not differ. The ratio of hind part to the reference carcass was the highest in progenies of P and lowest in groups L and C (38.0 vs. 37.2 and 37.0%, P<0.05). The ratio of perirenal fat was the lowest in group P and the highest in the progenies of L and M sires (1.79 vs. 2.06 and 2.00%, P<0.05). It was concluded that the weight of the carcass and of the carcass parts were influenced by the adult weight and ratio of fore and hind parts and fat deposite to reference carcass were affected by the CT based selection.

Comparison of performance of growing rabbits originated from different crossing combinations. 2. Carcass traits

DALLE ZOTTE, ANTONELLA
2009

Abstract

The aim of the experiment was to study the effect of dam and sire genotypes on the carcass traits of growing rabbits. The experiment was carried out at the Kaposvár University. Pannon White and Maternal line does were inseminated with sperm of Pannon White (P), Maternal line (M), Large body line (L), Terminal line of Hycole hybrid (H) or Coloured line (C). M, P and C were medium sized, L and H were large sized genotypes. P and L rabbits were selected by CT data for carcass traits but the other genotypes were not. Rabbits were slaughtered at 78 days of age. Examing the dam breed effect, the weight of the chilled carcass and body parts was higher in the progenies of the P does. The ratio of the hind part to reference carcass were higher in the P group (37.7 vs. 37.2%, P<0.001), however the ratio of fore part was higher in group M (26.2 vs. 26.5%, P<0.001). Examining the sire breed effect, the weights of the chilled carcass and of the carcass parts were the highest in the progenies of the H sires, and the smallest in the group M. The differences in dressing out percentage of the groups were not significant (60.0-60.8%). The ratio of the fore part to reference carcass was higher in the groups L, H and C but the ratio of the middle part did not differ. The ratio of hind part to the reference carcass was the highest in progenies of P and lowest in groups L and C (38.0 vs. 37.2 and 37.0%, P<0.05). The ratio of perirenal fat was the lowest in group P and the highest in the progenies of L and M sires (1.79 vs. 2.06 and 2.00%, P<0.05). It was concluded that the weight of the carcass and of the carcass parts were influenced by the adult weight and ratio of fore and hind parts and fat deposite to reference carcass were affected by the CT based selection.
2009
Proc. 21st Hungarian Conference on Rabbit Production
9789639821095
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