Diallel crossbreeding experiment in danish and hungarian meat rabbits 2. Quality evaluation, dissection, and chemical analysis of carcasses

• Autores: J.F. Jensen, J.A. Jensen, Zs. Szendrő, P. Sorensen
• Localización: World Rabbit Science, ISSN-e 1989-8886, ISSN 1257-5011, Vol. 4, Nº. 3, 1996, págs. 109-114
• Idioma: inglés
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• Resumen

  • The two rabbit meat breeds, Danish White (D), represented by a 3-way cross of 3 lines from the Danish lnstitute of Animal Science (DIAS), and Pannon White (H), represented by a synthetic breed from the Pannon Agricultural University (PAU) were used in a diallel crossing experiment carried out simultaneously at the two locations. In the four combinations: DD, DH, HD, and HH the male breed is mentioned first.Carcass weight averaged 1,650 g for ali carcasses. Body length was longest in (HD) carcasses. The dressing percentage was biggest in group (DH).For fleshiness and confonnation of carcasses, group (HD) got the highest score - 7.50 points. Group (DD) got 7.46 points and the two groups (DH) and (HH) got 7.36 and 7.34 points, respectively. Group (DD) and (HD) got the highest score for leg.At the cutting-up programme, no significant differences in the percentage for forepart were recorded between the four groups. The male carcasses had a significantly higher percentage forepart, 21.5 versus 20.9 for female carcasses. For loin the opposite was found, 35.8% for male and 36.8% for female carcasses, while no significant difference between the sexes was seen for hind part. So, the anatomy of the sexes seems to be different. M.long.dorsi as a percentage of the carcass weight was significantly higher in group (HD) than in the other groups. lt was smallest in group (DD), 10.1%. The groups (HH) and (DH) showed 11.0 and 10.6%.The percentage of fat free meat was significantly larger in the groups (HD) and (DD) than in the groups (DH) and (HH).The content of fat was significantly higher (P<0.001) in female than in male carcasses, 10.10%' and 8.89%, respectively.In the female carcass, there was a highly significant correlation betwem, the judged amount of fat and percentage fat in the analysis, r = 0.54 . In male carcasses the correlation was smaller and not sígnificant, r = 0.12. Between carcass weight and points for fleshiness, the correlation was highly significant, r = 0.64 and 0.63 for males and females, respectively, but between carcass weight and percentage of protein in the carcasses the correlation was negative and non-significant. The visual judgement of fleshiness/confonnation was, in this investigation, much influenced by the weight of the carcass, and only for female carcasses it was related to the fat content of the car-case. Significant differences between groups were found for M.long.dorsi (length as well as relative weight) and for fat free meat, too.