CRAMBE CAKE (Crambe abyssinica hochst) ON LAMB DIETS

Abstract

The use of alternative feedstuffs in animal diet, such as residues derived from the biodiesel production aims to increase productivity and reduce costs in animal production. Them aim of this study was to evaluate the substitution effect of 0, 22, 44 and 64% of soybean meal protein by Crambe cake (Crambe abyssinica Hochst) protein in lamb diet. In the in vivo experiment, 20 lambs were used and evaluated the apparent digestibility, nitrogen balance and voluntary DM intake. The replacement of the protein resulted in a linear decrease in apparent digestibility coefficient (ADC) of dry matter (DM), organic matter (OM), ether extract (EE), gross energy (GE), acid detergent fiber (ADF), neutral detergent fiber (NDF), cellulose (CEL) and the percentage of total digestible nutrients (TDN), which resulted in decreased daily DM intake. The blood level of urea, glucose, alanine aminotransferase (ALT) and aspartate aminotransferase (AST) were not affected. In vitro gas production technique (GP) evaluation of diets showed a significantly decrease (P<0.05) of the total gas and methane production without altering the true degradability of DM and OM and the partition factor (PF). Replacement of soybean meal protein by the Crambe cake protein decreased digestibility of the fiber fraction of the diet, the voluntary intake of DM and methane, without altering rumen fermentation. Crambe cake can be utilized as lamb's food, because, despite reduced intake, assure a large energy intake and similarity to soybean meal protein.Index terms: Co-product, digestibility, enteric methane, sheep, sustainability. RESUMOA utilização de alimentos alternativos na dieta animal, como os resíduos da produção de biodiesel, tem como finalidade aumentar a produtividade e reduzir os custos na produção animal. Com esse intuito, objetivou-se avaliar o efeito da substituição de 0, 22, 44 e 64% da proteína do farelo de soja pela proteína da torta de Crambe (Crambe abyssinica hochst) em dieta de cordeiros. No experimento in vivo, foram utilizados 20 cordeiros e avaliados a digestibilidade aparente, o balanço de nitrogênio e o consumo voluntário. A substituição da proteína resultou na diminuição linear do coeficiente de digestibilidade aparente (CDA) da matéria seca (MS), matéria orgânica (MO), extrato etéreo (EE), energia bruta (EB), fibra em detergente ácido (FDA), fibra em detergente neutro (FDN), celulose (CEL) e valor de nutrientes digestíveis totais (NDT), o que acarretou na diminuição do consumo diário da MS. Parâmetros sanguíneos de ureia, glicose, AST e ALT não foram afetados. No experimento in vitro, pela técnica semiautomática de produção de gás (PG), houve diminuição significativa (P<0,05) da produção total de gás e produção de metano, sem alterar a degradabilidade verdadeira da MS e MO e o fator de partição (FP). A substituição das proteínas na dieta de cordeiros acarretou diminuição da digestibilidade da fração fibrosa da dieta, do consumo voluntario da MS e de metano, sem alterar a fermentação ruminal. A torta de Crambe pode ser utilizada ...

Crushed crambe from biodiesel production as replacement for soybean meal in the supplement of steers grazing

“…From the crambe extraction process, by-products (crushed, meal or cakes) are generated with high protein content and great potential for use in ruminant feed to replace traditional protein sources such as soybean meal and cotton (Canova et al 2015;Carneiro et al 2016;Itavo et al 2016). The crushed crambe has high lipid content (360-380 g/kg) that can increase the energy density of a diet ( Itavo et al 2016).…”

“…The potential of glucosinolates at high levels represents the primary limitation for the use of crambe in animal feed (Tripathi and Mishra 2007), because the crambe grain has approximately 30-40 g/kg or 90 mol/g of glucosinolates, a toxic level for many organisms (Wallig et al 2002). In ruminants, the toxic products are not produced during digestion (B€ ohme et al 2005); however, reduced intake due to low palatability of crambe by-products is reported (Canova et al 2015;Itavo et al 2016). With this background, the objective of this study was to evaluate the optimum level of crushed crambe to include in the diet of steers as a replacement for soybean meal, measured by the intake and digestibility of nutrients, microbial protein synthesis and nitrogen balance (NB) and ruminal fermentation.…”

Quality traits and lipid composition of meat from crossbreed Santa Ines ewes fed diets including crushed crambe

“…Erucic acid is classified as a biodegradable fatty acid. Canova et al (2015), evaluating crushed crambe for use as sheep feed, replaced soybean meal with crambe protein in high-concentrate lamb diets and showed that crambe protein can be used for lambs because it provides a large energy and protein intake with similar protein characteristics to those of soybean meal. Souza et al (2015) completely replaced soybean meal and found no changes in the performance of cows, recommending that soybean meal be replaced with crambe protein in the finishing phase.…”

Composição química, degradabilidade ruminal e tempo de colonização de suplementos concentrados com torta de crambe

“…A torta de crambe, proveniente da prensagem das sementes para extração do óleo de crambe é utilizada como uma fonte de proteína para a alimentação de bovinos (MizuButi et al, 2011;cAnovA et al, 2015;MendonçA et al, 2015), apresentando índices entre 26 e 28% de proteína bruta (souzA et al, 2009;MizuBiti et al, 2011), o que a torna um provável substituto do farelo de soja. Além da proteína bruta, a torta de crambe é rica em energia, apresentando entre 26 e 33% de extrato etéreo (SouzA et al, 2009;MizuButi et al, 2011).…”