Impacto do farelo do bagaço do caju na alimentação de suínos dos 60 aos 90 Kg: estudo da digestibilidade dos nutrientes, desempenho e viabilidade econômica
MOTA, Lorena Cunha. Impacto do farelo do bagaço do caju na alimentação de suínos dos 60 aos 90 Kg: estudo da digestibilidade dos nutrientes, desempenho e viabilidade econômica. 2014. 35f. Dissertação (Mestrado em Produção Animal) - Universidade Federal do Rio Grande do Norte, Universidade Federal do Rio Grande do Norte, Natal, 2014.
Mota, Lorena Cunha
The research objective was to evaluate the cashew pulp bran (CPB) digestibility, the finishing swine performance feed with different levels of cashew pulp bran diets and the feed economic viability. Two experiments were conducted. In the first experiment, the digestibility essay with ten barrows with initial average weight of 60±6.86, housed in metabolic cages for a trial period of fifteen days was developed. The animals were feed daily at 8h00 and 15h00. Five of this pigs received standard food and the other five received test food, with 30 % of CPB replacement of the standard food. Was chosen the total feces collection, without marker feces. The feces samples were collected daily at 7h00 and was taken at a rate of 20 % and stored in a freezer. At the end of the experimental period, the feces samples were analyzed in the laboratory to evaluate the digestibility of dry matter, crude protein, neutral detergent fiber, acid detergent fiber and the levels of gross energy, digestible energy, Ca and P of the CPB. In the second experiment, was conducted the performance essay and diets animals economic viability, with 40 crossbred animals, weighing 60kg ±5,24 (20 castrated males and 20 females), outlined in randomized block design with five treatments (0, 7.5, 15, 22.5, 30 % with CPB included) and four replications. The parameters were the feed intake, weight gain, feed conversion. When animals dyed average weight 90±6.8 kg were slaughtered. The carcass data (the backfat depth, the longissimus muscle, the hot carcass weight and the lean meat percent) were analyzed to compose the economic viability study, which evaluated the partial gross receipts with rate bonus, partial gross receipts, partial liquid receipts and partial liquid receipts with rate bonus. The parameters were subjected to variance and regression analysis using the SAS program. It was observed, the dry matter, crude protein, neutral detergent fiber and acid detergent fiber digestibility and gross energy, digestible energy, ash, Ca and P cashew pulp bran values were, 44.265% ; 8.20%; 15.22%; 13.05%; 4,081 kcal / kg 2,470 kcal / kg, 6.61%; 0.50%; 0.35%, respectively. The diet with 7.5% increased the backfat depth, the lean meat percentage and the partial gross revenue allowance index