Effect of lupin on growth performance, carcass characteristics and meat quality of growing and fattening kids
2013
S., El Otmani | M., Ayadi | M., Chentouf
To determine lupin grain (Lupinus angustifolius) effect in kids diet, we analyzed its incorporation effect on growth performances, carcass characteristics and meat quality. Four rations of concentrate (Rm, R2, R3 and R4) respectively with 0 per cent, 12 per cent, 21 per cent and 35 per cent DM of lupin physically treated and completed with barley and faba beans, were distributed to 4 groups of 7 local kids in each one from 90 days until 180 days of age. Results showed no effect of lupin on final weight, ADG (41.30, 47.50, 42.06, 49.76 g per day respectively for Rm, R2, R3 and R4), carcass yield, gastric pouch weight, adipose tissue and bone tissue importance, length of carcass and thigh and compactness index, while its incorporation improved significantly muscle and conformation index (P less than 0.05). For carcass color, rates higher than 20 per cent increased significantly redness of tail and saddle (P less than 0.01), and decreased significantly saddle lightness (P less than 0.05). For the nutritional quality of meat, lupin induced significant reduction of humidity (P less than 0.01) with 75.76, 77.59, 73.85 and 74.11 per cent respectively for Rm, R2, R3 and R4, while minerals, protein and fat were not affected. Lupin incorporation can reach 35 per cent DM of the concentrate of kids without negatively affecting growth performance, carcass characteristics and meat quality.
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