Resumen de Predicción del peso de canal y piezas nobles en cerdos grasos alimentados con alberjones en distintos porcentajes.
E. de Mercado, J. Gómez Fernández, C. Tomás, Mercedes Múzquiz, Eva Guillamón Fernández, A. Varela, M. Martín, P. López Nuez, Emilio Gómez Izquierdo
A total of 192 barrows og 171 days of age (114 ± 5.49 kg) were used to assess four diets with differents levels of narbon vetch (NV) and establish the predictive equations relating the daily feed intake of NV and GEC with weight and yield of carcass, ham, shoulder and loin chop. The experimental animals were housed in four rooms with 12 pens for room and four pigs in each. The design was a randomized complete block with four treatments at the rate of NV inclusion in the feed: 0%, 5%, 15%, 25%; with four blocks, eight replicates per treatment and four pigs per replicate (1.40 m2 per pig). Previous fasting for 12 hours pigs were stunned in chamber carbon dioxide with a minimum concentration of 80% for 45 min, exsanguinated, skinned, and eviscerated. Hot carcass weight was individually recorded and used to calculate yield percentage of ham, shoulder and loin chop. Were determined polynomial regression equations with cubic structure, relating the weight and performance of carcass, ham, shoulder and loin chop with the average daily intake of NV (0-25%) and GEC (0-12 g).The percentage of NV inclusion and the daily consumption of GEC, except loin chop weight and yield (48%), explained more than 50% of the variation obtained in weight and yield of carcass, ham and shoulder. We conclude that the amount of NV and GEC in the diet is a possible way to estimate the weight and yield of carcass and main lean cuts of fatty pigs.
