tese
Potencial de coprodutos do biodiesel para alimentação de ruminantes
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UNIVERSIDADE FEDERAL DE LAVRAS
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Programa de Pós-Graduação
DZO - Departamento de Zootecnia
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O Brasil, devido a sua diversidade climática e de ecossistemas, permite uma gama de possibilidades de oleaginosas para produção de biodiesel. Novos co-produtos estão sendo gerados, trazendo a necessidade de se estudar a viabilidade de uso dessas fontes alimentares alternativas. O experimento foi conduzido no Laboratório de Pesquisa Animal da Universidade Federal de Lavras (UFLA) e objetivou-se a determinação da composição bromatológica e digestibilidade in vitro da matéria seca das tortas de nabo forrageiro (TNF), pinhão manso (TPM) e tremoço (TT) e avaliar o efeito da adição destes co-produtos na qualidade da silagem de capim elefante. Os co-produtos foram ensilados em silos experimentais de PVC, adaptados com válvula tipo Bünsen, com capacidade para aproximadamente 4kg. O experimento foi instalado segundo um delineamento inteiramente casualizado (DIC) com três repetições, em que os tratamentos estavam arranjados segundo um esquema de parcelas subdivididas no tempo. Os tratamentos de parcela seguiram um esquema fatorial 3 x 3 (3 tipos de torta - nabo forrageiro, pinhão manso e tremoço; 3 níveis de inclusão de torta - 5, 8, e 11%) mais 1 tratamento adicional (capim puro). Os dados foram analisados utilizando rotinas do software Statistical Analysis System (SAS, 1999). Foram determinados os valores de MS, EE, PB, FDN, FDA, NIDN, NIDA, MM, CEL, LIG, pH, PT, AGV´s, N-NH3 e DIVMS. Houve efeito (P<0,05) dos níveis de inclusão das tortas nos teores de MS das silagens, sendo que a TNF proporcionou maior teor de MS para as silagens. Houve efeito dos níveis de inclusão sobre o teor de PB e EE das silagens, sendo que as que continham TT apresentaram valores médios superiores às com TPM e TNF. Os teores médios de FDN e FDA foram diminuídos (P<0,05) com a adição das tortas nos diferentes níveis de inclusão, sendo que os menores valores médios foram obtidos nas silagens contendo 11% de TT. Houve efeito da adição das tortas nos diferentes níveis sobre os teores médios de LIG. A DIVMS foi diminuída conforme a adição de níveis crescentes das tortas, exceto para TT. A adição das tortas de nabo forrageiro e tremoço nos níveis estudados são considerados viáveis na ensilagem de capim elefante em regiões com disponibilidade destes coprodutos.
Brazil, due to its climatic diversity and of ecosystems allows a range of possibilities of oilseed plants for biodiesel production. New co-products are being generated, bringing the need to study the viability of use of those alternative feeding sources. The experiment was conducted in the Animal Research Laboratory of the Federal University of Lavras (UFLA) and it aimed at the determination of the bromatologic composition and in vitro digestibility of the dry matter of red radish (TNF), jatropha (TPM) and lupine (TT) cakes and evaluation of the effect of adding these co-products on the quality of elephant grass silage. The products were ensiled in experimental PVC silos, fitted with Bünsen-type valves, with a capacity of about 4kg. The experiment was set up according to a completely randomized design (CRD) with three replicates, in which the treatments were arranged according to a split plot scheme in time. The plot treatments followed a factorial scheme 3 x 3 (3 types of cakes- forage radish, jatropha and lupine; 3 levels of inclusion of - 5, 8 and 11%) plus 1 additional treatment (only grass). The data were analyzed utilizing routines of the Statistical Analysis System software (SAS, 1999). The values of DM, EE, CP, NDF, ADF, NIDN, NIDA, MM, CEL, LIG, pH, PT, AGV´s, N-NH3 and DIVMS were determined. There was effects of (P<0.05) of the levels of inclusion of the cakes on the DM contents of the silages, namely, TNF provided highest DM content to the silages. There was effect of the inclusion levels on the content of CP and EE of the silages, that is, the ones containing TT presented average values higher than those with TPM and TNF. The average contents of NDF and ADF were decreased (P<0.05) with the addition of the cakes at the different inclusion levels, namely, the lowest average values were obtained in the silages containing 11% of TT. There was effect of adding the cakes at the different levels on the average contents of LIG. DIVMS was decreased according to the addition of growing levels of the cakes, except for TT. Addition of red radish and lupine cakes at the levels studied are regarded as viable in elephant grass ensiling in regions of availability of these co-products.
Brazil, due to its climatic diversity and of ecosystems allows a range of possibilities of oilseed plants for biodiesel production. New co-products are being generated, bringing the need to study the viability of use of those alternative feeding sources. The experiment was conducted in the Animal Research Laboratory of the Federal University of Lavras (UFLA) and it aimed at the determination of the bromatologic composition and in vitro digestibility of the dry matter of red radish (TNF), jatropha (TPM) and lupine (TT) cakes and evaluation of the effect of adding these co-products on the quality of elephant grass silage. The products were ensiled in experimental PVC silos, fitted with Bünsen-type valves, with a capacity of about 4kg. The experiment was set up according to a completely randomized design (CRD) with three replicates, in which the treatments were arranged according to a split plot scheme in time. The plot treatments followed a factorial scheme 3 x 3 (3 types of cakes- forage radish, jatropha and lupine; 3 levels of inclusion of - 5, 8 and 11%) plus 1 additional treatment (only grass). The data were analyzed utilizing routines of the Statistical Analysis System software (SAS, 1999). The values of DM, EE, CP, NDF, ADF, NIDN, NIDA, MM, CEL, LIG, pH, PT, AGV´s, N-NH3 and DIVMS were determined. There was effects of (P<0.05) of the levels of inclusion of the cakes on the DM contents of the silages, namely, TNF provided highest DM content to the silages. There was effect of the inclusion levels on the content of CP and EE of the silages, that is, the ones containing TT presented average values higher than those with TPM and TNF. The average contents of NDF and ADF were decreased (P<0.05) with the addition of the cakes at the different inclusion levels, namely, the lowest average values were obtained in the silages containing 11% of TT. There was effect of adding the cakes at the different levels on the average contents of LIG. DIVMS was decreased according to the addition of growing levels of the cakes, except for TT. Addition of red radish and lupine cakes at the levels studied are regarded as viable in elephant grass ensiling in regions of availability of these co-products.
Abstract
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Área de concentração
Nutrição de ruminantes
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JÚNIOR, A. P. N. Potencial de coprodutos do biodiesel para alimentação de ruminantes. 2009. 136 p. Tese (Doutorado em Zootecnia)-Universidade Federal de Lavras, Lavras, 2009.