The use of peas and sweet lupin seeds alone or in association for fattening lambs: Effects on performance, blood parameters and meat quality

摘要: Abstract The aim of this study was to evaluate the effects using sweet lupin and pea seeds singly or in association as protein sources diet fattening lambs. We investigated lamb growth performances, carcass characteristics, blood parameters, chemical physical characteristics meat its fatty acid composition. Twenty-four “Gentile di Puglia” male lambs (body weight 15.8 ± 0.5 kg age 38 ± 2 days) were divided into three homogeneous groups (n = 8) fed for 7 weeks with different experimental diets: L containing 250 g/kg (on basis) seeds; P + L 150 g/kg plus P 300 g/kg seeds. Three types pelleted total mixed rations formulated be isonitrogenous isocaloric. Group had a higher average daily feed intake than other two groups, while there no differences slaughter body weights, gains conversion ratio due dietary treatment. Carcass traits tissue composition leg not affected by source. concentrations urea at end trial. Meat composition, pH, colour tenderness influenced contained proportions saturated acids (SFA), particular myristic (C14:0), from P + L; comparison unsaturated (UFA) percentages also showed that - lower levels oleic (C18:1 n 9, cis- 9) groups. -6/ -3 group P, but worse atherogenicity thrombogenicity indices P + L. In conclusion, when used alone feed, it negative effect on intramuscular use together eliminated lupin.