Effect of sire strain, feeding, age and sex on rabbit carcass

• Autores: Marcella Bernardini Battaglini, C. Castellini, P. Lattaioli
• Localización: World Rabbit Science, ISSN-e 1989-8886, ISSN 1257-5011, Vol. 3, Nº. 1, 1995, págs. 9-14
• Idioma: inglés
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• Resumen

  • The effect of sire strain, feeding plan, slaughter age and sex on the carcass quality were studied on 120 crossbred rabbits (White Giant (VVG), Heavy Grimaud Fréres (HGF), Light Grimaud Fréres (LGF) with New Zealand White does]. Two feeding plans were used: plan H consisting of a high energy diet (10.42 MJ DE/kg; 12.14 % DP) from weaning to slaughtering (75 days or 90 days of age); plan LH consisting of a low energy diet (9.85 MJ DE/kg; 11.51 % DP) until 55 days, and a high energy diet up to 75 or 90 days. The sire strain affected growth performance and carcass traits; the best results were obtained with progeny of WG at 90d. The sex effect was not significant and the feeding plan did not influence growth performance and carcass quálity, because of the abiírty of the rabbit to adjust lts feed intake fo the energetic value of the diet. Delaying slaughter age, most of the traits improved, allowing heavy carcasses with very good qualitative characteristics to be obtained: Carcass yield 62.7 %, drip loss 2.7 %, reference carcass 1384 g, perirenal fat 2.1 % r.c., muscle/bone ratio of hing leg 7.6.