Nutrient digestibility, nitrogen metabolism and hepatic function of sheep fed diets containing solvent or expeller castorseed meal treated with calcium hydroxide

Oliveira, André Soares de; Campos, Josemberg Marins; Oliveira, M.R.C.; Brito, A.F.; Filho, Sebastião de Campos Valadares; Detmann, Edênio; Valadares, Rilene Ferreira Diniz; Souza, S. M. de; Machado, Olga Lima Tavares

doi:10.1016/j.anifeedsci.2010.02.009

Cited by 66 publications

(63 citation statements)

References 26 publications

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“…Accordingly to Paulino et al (2008), the potentially digestible dry matter is an integrating measure of quantitative and qualitative aspects of the pasture, which allows greater preciseness in the real evaluation of capacity of support and performance of animal in the used area. The average availabilities of the dry matter and potentially digestible dry matter during all the experimental period were 4,328.3 and 2,858.4 kg/ha, respectively (Table 2).…”

Section: Resultsmentioning

confidence: 99%

“…The DMpd (% DM) was estimated accordingly to the following equation (Paulino et al, 2008): DMpd = 0.98 × (100 -NDF) + (NDF -iNDF) where: NDF = neutral detergent fiber and iNDF = indigestible neutral detergent fiber, as % of DM.…”

Section: Itemmentioning

confidence: 99%

“…The presence of toxic compounds (ricine and ricinina) as well as the technological shortage that provides obtainment of a safe food with competitive prices were commonly pointed as the main factors that restrain its adoption in animal feeding (Severino, 2005). In recent studies, Oliveira et al (2010) showed that it is possible to make efficient deintoxication of castor seed meal by calcium oxide, obtaining a safe product for animal feeding.…”

Section: Introductionmentioning

confidence: 99%

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Replacement of soybean meal by treated castor meal in supplements for grazing heifer during the dry-rainy season period

Barros¹,

Paulino²,

Detmann³

et al. 2011

R. Bras. Zootec.

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-The objective of this work was to evaluate the effect of multiple supplement with different levels of castor meal (Ricinus communis L.) treated with calcium oxide on intake, on the total apparent digestibility of dietary components, on the efficiency of microbial synthesis and on the performance of beef heifers grazing Brachiaria decumbens during the dryrainy transition period. The experimental area was composed of five 2.5-ha paddocks with availability of potentially digestible dry matter of 2,858.4 kg/ha. It was used 25 Nellore heifers and 10 crossbred with predominance of Zebu breed heifers at 13 months of age and body weight of 210 ± 0.8 kg in a completely randomized experimental design. Supplements contained approximately 25% of crude protein (CP) and they were formulated with 0; 33; 67 and 100% of castor meal replacing soybean meal. Daily weight gain was 366.1 g for animals in the control group and 439.7; 478.9; 556.3; and 493.9, respectively for those fed supplements with 100% of soybean meal and 33, 67 and 100% castor meal. There was no effect of treated castor meal levels on daily weight gain of the animals, which was higher in those animals fed supplements. Levels of castor meal had decreasing linear effect on intakes of dry matter (DM), organic matter (OM), ether extract (EE), digested dry matter and digestible neutral detergent fiver and on the intake of total digestible nutrients. Coefficients of apparent digestibility of DM, OM, CP, EE and non-fibrous carbohydrates were greater for animals under supplementation. Microbial efficiency, expressed in g of crude protein per kg of consumed TDN, did not differ among groups. Replacement of soybean meal by castor meal treated with calcium oxide does not harm animal performance.Key Words: biodisel, Brachiaria decumbens, nutritional parameters, supplementation Substituição do farelo de soja por farelo de mamona tratado em suplementos para novilhas em pastejo no período de transição seca-águas RESUMO -Objetivou-se avaliar o efeito de suplementos múltiplos com diferentes níveis de farelo de mamona (Ricinus communis L.) tratado com óxido de cálcio sobre o consumo, a digestibilidade aparente total de componentes da dieta, a eficiência de síntese microbiana e o desempenho produtivo de novilhas de corte em pastagem de Brachiaria decumbens durante o período de transição seca-águas. A área experimental foi composta de cinco piquetes de 2,5 hectares, com disponibilidade de matéria seca potencialmente digestível de 2.858,4 kg/ha. Utilizaram-se 25 novilhas da raça Nelore e 10 mestiças com predominância de sangue zebu com idade e peso médio iniciais, respectivamente, de 13 meses e 210 ± 0.8 kg de peso corporal em um delineamento experimental inteiramente casualizado. Os suplementos continham aproximadamente 25% de proteína bruta (PB) e foram formulados com 0; 33; 67 e 100% de farelo de mamona em substituição ao farelo de soja. O ganho médio diário foi de 366,1 g para os animais do grupo controle e 439,7; 478,9; 556,3; e 493,9, respectivamente, para aqueles alim...

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Section: Resultsmentioning

confidence: 99%

Section: Itemmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Replacement of soybean meal by treated castor meal in supplements for grazing heifer during the dry-rainy season period

Barros¹,

Paulino²,

Detmann³

et al. 2011

R. Bras. Zootec.

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“…Oliveira et al (2010) observaram o aumento da síntese de proteína microbiana em ovinos, após a destoxificação parcial do farelo de mamona por tratamento alcalino, mas esse efeito, de acordo com os autores, pode ter sido influenciado pelo incremento da ingestão de nutrientes digestíveis.…”

Section: Introductionunclassified

“…Assim, há necessidade de um destino adequado e sustentável para tais materiais, para transformá-los em coprodutos, cuja utilização é uma alternativa importante para a nutrição animal. Entretanto, a presença de princípios tóxicos e alergênicos pode dificultar esse uso (Oliveira et al, 2010). …”

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Parâmetros sanguíneos, hepáticos e ruminais de ovinos alimentados com dietas com farelo de mamona destoxificado

Menezes

Costa

Araújo³

et al. 2012

Pesq. agropec. bras.

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Resumo -O objetivo deste trabalho foi avaliar os parâmetros sanguíneos, hepáticos e ruminais, bem como caracterizar e quantificar a população de protozoários ciliados, no rúmen de ovinos alimentados com dietas com farelo de mamona destoxificada (FM). Foram utilizados 32 ovinos, para a avaliação dos parâmetros sanguíneos e hepáticos, e quatro ovinos adultos fistulados no rúmen, para a avaliação dos parâmetros ruminais. A dieta controle foi composta por feno de capim-buffel, milho em grão moído, ureia e farelo de soja (FS Blood, liver and rumen parameters of sheep fed diets containing detoxified castor bean mealAbstract -The objective of this work was to evaluate the blood, liver and rumen parameters, as well as to characterize and quantify the population of ciliated protozoa in the rumen of sheep fed diets with detoxified castor bean meal (DCBM). Thirty-two lambs were used, for the evaluation of blood and liver parameters, and four rumen-cannulated adult sheep were used to determine rumen parameters. The control diet was composed by buffel grass hay, ground corn grain, urea and soybean meal (SBM). In the treatments, SBM was partially replaced by DCBM at 15, 30 and 45% in the concentrate. There was no significant difference, among treatments, for the serum-urea contents whose mean value was 666.0 mg L -1. There was no significant difference, among diets, for glucose, aspartate aminotransferase and alanine aminotransferase, which had mean values of 690.3 mg L , respectively. The ammoniacal nitrogen and pH values had an increasing linear pattern with the replacement of SBM by DCBM. The genus Entodinium was the most frequent in all treatments and showed 76.4% overall mean of the total protozoa; the treatment without DCBM had the highest percentage of this genus among treatments. The diet substitution above 45% of soybean meal by the detoxified castor bean meal is favorable to the rumen environment.Index terms: Ricinus communis, ciliates, metabolism, microbiota, rumen. IntroduçãoA mamona (Ricinus communis L.), por apresentar características como adaptabilidade a solos mais arenosos e resistência à seca, é indicada como matéria prima para o biocombustível na região Nordeste do Brasil (Severino, 2005). E a indústria desse produto é responsável por grandes quantidades de resíduos, que causam problemas ambientais e, além disso, representam encargos com estocagem. Assim, há necessidade de um destino adequado e sustentável para tais materiais, para transformá-los em coprodutos, cuja utilização é uma alternativa importante para a nutrição animal. Entretanto, a presença de princípios tóxicos e alergênicos pode dificultar esse uso (Oliveira et al., 2010).

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Arkema: Castor Reactive Seed Crushing Process to Promote Castor Cultivation

Dubois

2016

Industrial Biorenewables

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Nutrient digestibility, nitrogen metabolism and hepatic function of sheep fed diets containing solvent or expeller castorseed meal treated with calcium hydroxide

Cited by 66 publications

References 26 publications

Replacement of soybean meal by treated castor meal in supplements for grazing heifer during the dry-rainy season period

Replacement of soybean meal by treated castor meal in supplements for grazing heifer during the dry-rainy season period

Parâmetros sanguíneos, hepáticos e ruminais de ovinos alimentados com dietas com farelo de mamona destoxificado

Arkema: Castor Reactive Seed Crushing Process to Promote Castor Cultivation

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