The effect of mixture of rapeseed meal, white lupin seed, and peseed in rabbit diets on performance indicators and fatty acid profile of meat and fat

Abstract

Quality of rabbit’s carcasses is largely determined by the composition of the lipid fraction. The objective of this study was to determine the effect of partial or complete substitution of soybean meal with a combination of rapeseed meal, white lupin seed and pea seed on the production results and fatty acid profile of meat and fat in rabbits. Ninety New Zealand White rabbits were divided into three feeding groups, 30 in each group: Control-C (mean protein source-15% soybean meal in the diet), Experimental 1-E1 (7.5% soybean meal, 5% rapeseed meal, 4% white lupin seed, 3% pea seed) and Experimental 2-E2 (0% soybean meal, 10% rapeseed meal, 8% white lupin seed, 6% pea seed). No significant differences were determined in the final body weights of rabbits. Feed efficiency was better in both of the E groups than in group C. Dressing percentage was higher in group E2 than in group C. Also, protein content in thigh muscle was higher in groups E than in group C. As the dietary proportion of soybean decreased, the proportion of SFA in meat and in perirenal fat decreased, and that of PUFA increased. The obtained results indicate that soybean meal may be successfully replaced in rabbit diets by the combination of rapeseed meal, white lupin seed, and pea seed.