Caracterização de co-produtos e subprodutos protéicos da indústria do biodiesel para alimentação de ruminantes

• Autor(a) principal: Carrera, Ricardo Andrés Botero
• Data de Publicação: 2010
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: LOCUS Repositório Institucional da UFV
• Texto Completo: http://locus.ufv.br/handle/123456789/5690
• topic: Amido; Composição químico-bromatológica; Digestibilidade in vitro; Proteína; Starch; Chemical composition; Vitro digestibility; Protein; CNPQ::CIENCIAS AGRARIAS::ZOOTECNIA::PRODUCAO ANIMAL

It was intended, from this study, to classify and discriminate materials evaluated in terms of its chemical composition and with respect to in vitro digestibility. Studies resided on the chemical composition, chemical profile of crude protein (CP) and digestive characteristics of 20 protein co-products and byproducts of the biodiesel industry with potential use in ruminant feeding. Were used: cottonseed meal and cake, two peanut cakes, babassu cake, canudo-de-pito meal, crambe meal and cake, palm oil cake, sunflower meal and cake, licuri cake, macaúba seeds cake, detoxified with calcium and non-detoxified castor-oil seeds meal, non-detoxified castor-oil seeds cake, turnip cake, two jatropha cakes and soybean meal. For the chemical composition, the samples were quantified to determine the dry matter (DM), organic matter (OM), crude protein (CP), ether extract (EE), neutral detergent fiber corrected for ash and protein (NDFap), non-fiber carbohydrates (NFC), acid detergent fiber corrected for ash and protein (ADFap), lignin, cutin and starch levels. To determine the chemical profile of CP was made the protein fractionation (fractions A, B1, B2, B3 and C) according to the Cornell Net Carbohydrate and Protein System (CNCPS). For the biological characteristics the dry matter in vitro digestibility (DMIVD), neutral detergent fiber in vitro digestibility (NDFIVD), rumen degraded protein (RDP), rumen undegraded protein (RUP), intestinal digestibility (ID) by the method of three stages, digestible rumen undegraded protein (DRUP), indigestible neutral detergent fiber (iNDF) and neutral detergent insoluble undegradable protein (NDIUP) were evaluated. The divergence of nutritional value, based on discriminatory variables between groups was estimated by cluster analysis using Euclidean distance with average standardized variables and the method of minimum variance. The content of OM, CP, EE, NDFap, NFC, ADFap, lignin, cutin and starch varied from 81.95 to 95.41%, 18.92 to 57.75%, 0.56 to 18.40%, 10.13 to 62.30%, 3.89 to 27.88%, 6.15 to 36.86%, 1.19 to 5.04%, 0 to 17.87% and 0.68 to 14.50%, respectively. The values of fractions A, B1, B2, B3 and C, ranged from 5.40 to 43.31%, 0.08 to 37.63%, 16.75 to 79.39%, 1.86 to 59.15 % and 0.60 to 11.47%, respectively. Concentrations of DMIVD, NDFIVD, RDP, RUP, ID, DRUP, iNDF NDIUP ranged from 31.00 to 95.92%, 55.04 to 97.74%, 41.06 to 97.61%, 2.39 to 58.94, 9.27 to 94.26%, 0.33 to 53.32%, 1.05 to 40.80% and 0.29 to 2.92%, respectively. The babassu, palm oil, sunflower, licuri and macaúba seeds presented DRUP content higher than soybean meal. Some co-products and byproducts can be used to replace soybean meal, considering that the values of the biological characteristics were similar to this.