Substituição da palma-gigante por palma-miúda em dietas para bovinos em crescimento e avaliação de indicadores internos

Torres, Luiz Carlos Leal; Ferreira, Marcelo de Andrade; Guim, Adriana; Vilela, Márcio da Silva; Guimarães, Amanda Vasconcelos; Silva, Emmanuelle Cordeiro da

doi:10.1590/s1516-35982009001100028

Cited by 24 publications

(13 citation statements)

References 16 publications

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“…According to Torres et al (2009), cactus pear can fully replace giant palm in diets for growing cattle once it does not change the intake the apparent digestibility of nutrients, reinforcing the potential of this Cactaceae as animal feed.…”

Section: Resultsmentioning

confidence: 99%

Effect of Solid State Fermentation on Nutritional Content and Evaluation of Degradability in Cactus Pear

Santos¹,

Diniz²,

Brito³

et al. 2015

Rev. Caatinga

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-The process of protein enrichment of cactus pear (Nopalea cochenillifera (L.) Salm Dyck) by solid state fermentation with the use of Aspergillus niger and Rhyzopus sp. was studied for improving the nutritional value of this cactus species for use as animal feed. The experiments were conducted in the Agroindustrial Waste Laboratory of State University of Southwest Bahia (Brazil). To this end, we have evaluated the effects of biotransformation on the levels of protein, cellulose, hemicellulose, and lignin, as well as the potential degradability. Bioconversion was carried out using cactus pear as the only substrate, without supplementation with nitrogen, mineral and vitamin sources. The fermentation with Aspergillus niger promoted a 78% increase in/of protein content and reductions of cellulose, hemicellulose, and lignin of 40%, 36%, and 28%, respectively. Degradability, in turn, was observed to have increased by 66 % after 240 h. On the other hand, the fermentation with Rhyzopus sp. was less efficient, with a 69% increase in protein content, and reductions in cellulose, hemicellulose, and lignin contents of 30%, 28%, and 18%. In turn, degradability was seen to have increased by 51%. The fermentation of cactus pear by Aspergillus niger and Rhyzopus sp. exhibited the protein enrichment and increased protein degradability of this Cactaceae. Moreover, this is the most ever efficient micro-organism used in bioconversion. Based on the results, bioconversion of cactus is an excellent alternative to ruminant feeding in arid or semi-arid land. . O efeito da fermentação em estado sólido sobre a palma forrageira foi avaliado comparando os teores de proteína, celulose, hemicelulose e lignina, além da degradabilidade potencial, com os valores in natura. A bioconversão foi realizada utilizando como único substrato a palma forrageira e água, sem a suplementação de fontes alternativas de nitrogênio, minerais ou vitaminas. O fungo Aspergillus niger elevou os teores proteicos em aproximadamente 78% e promoveu a redução nos teores de celulose, hemicelulose e lignina em aproximadamente 40%, 36% e 28%, respectivamente. Por sua vez essa biotransformação elevou a degradabilidade potencial em 66% após 240 h. Enquanto que o fungo Rhyzopus sp. demonstrou ser menos eficiência no enriquecimento proteico, com um aumento de aproximadamente 69 %, e a redução no teores de celulose, hemicelulose e lignina de 30%, 28% e 18%. Ainda para este fungo a degradabilidade potencial teve uma elevação de aproximadamente 51%. Portanto a fermentação da palma forrageira com auxílio dos fungos filamentosos Aspergillus niger e Rhyzopus sp. promoveram um enriquecimento nos teores proteicos desta cactacea além de elevar a sua degradabilidade potencial. Com base nesses resultados, a bioconversão da palma forrageira empregando o método de fermentação em estado sólido pode ser uma excelente alternativa na alimentação de ruminantes em terras áridas ou semiáridas.

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Section: Resultsmentioning

confidence: 99%

Effect of Solid State Fermentation on Nutritional Content and Evaluation of Degradability in Cactus Pear

Santos¹,

Diniz²,

Brito³

et al. 2015

Rev. Caatinga

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“…It is noteworthy the estimation of total fecal DM production with iDM had the highest correlation with the total collection; the fecal recovery of this marker was similar to that obtained with iNDF, but above 100%, which may result in an overestimated total fecal DM production and consequently underestimated digestibility. The use of iDM as a marker for the estimate of digestibility has been common in research with ruminants, and different effects have been observed, e.g., Torres et al (2009), who obtained efficient estimates with iDM incubated for 144 h (61.24%) as compared with those obtained by total feces collection (58.99%). According to Canesin et al (2012), when internal markers are incubated for a shorter time, especially iDM, iNDF and iADF, they do not reproduce the indigestible fraction of the feed and consequently the digestibility of DM and nutrients, thus requiring longer incubation times.…”

Section: Resultsmentioning

confidence: 99%

“…The concentrations of DM as well as(on a DM basis) crude protein (CP), ether extract (EE), mineral matter (MM) and energy value were determined according to methodologies of the AOAC (2012); neutral detergent fiber (NDFap), according to the methodology of Van Soest et al (1991) and acid detergent fiber (ADFap), according to the methodology of Van Soest et al (1963),corrected for ash and protein; acid detergent lignin contents (ADL) were calculated by the method of Van Soest et al (1963);and neutral (NDIN) and acid (ADIN) detergent insoluble contents were determined according to methodologies described by Licitra et al (1996). Concentration of cellulose (CEL) and hemicellulose (HEM) were calculated using the following formulae: CEL = ADFap-LIG, and HEM = NDFapADFap, respectively.…”

Section: Methodsmentioning

confidence: 99%

“…To evaluate the internal markers, samples of diet, orts and feces were incubated in a fistulated cow for 264 h (CASALI et al, 2008), using 12.0 × 8.0cm nylon bags with 50 µm porosity containing approximately 4g of the sample ground in a 2.0mm sieve. After the incubation period, bags were washed in running water and dried in a forced air-circulation oven at 60±5°C for 72h for later analyses of the indigestible DM fraction (AOAC, 2012), NDF ( VAN SOEST et al, 1991) and ADF and ADL( VAN SOEST et al, 1963). To calculate the fecal recovery of the markers (REC) and the estimate of the total fecal DM production (FP), with the use of markers, the formulae described by Zeoula et al (2002) were adopted, as follows: REC(%) = (FP M / FP TC ) x 100 and FP(g/day) = MI/MF , where FP M = fecal production estimated by the marker (gDM/day); FP TC = fecal production estimated by total feces collection (gDM/day); MI = marker ingested (g/day);and MF = marker in the feces (g/gDM).…”

Section: Revmentioning

confidence: 99%

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Digestibility markers of sheep diets containing hydrolyzed sugarcane-top hay

Filho

Alves

Garcez

et al. 2017

Rev. bras. saúde prod. anim.

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SUMMARY This experiment evaluated the correlation between the estimates of fecal digestibility and dry matter digestibility (DMD) and nutrients obtained using internal (indigestibles dry materiDM, neutral detergent fiber-iNDF, acid detergent fiber-iADF and acid detergent ligniniADL) and external (chromium oxide-Cr2O3, titanium dioxide-TiO2, and purified and enriched lignin from eucalyptus-LIPE®) markers and the values obtained by the total feces collection method. Twenty uncastrated male sheep, with 29.64±5.53 kg average live weight; approximately 12 months old, were kept in metabolic cages and fed diets containing untreated sugarcane-top hay or sugarcane-top hay hydrolyzed with 3 and 6% urea or 1.5 and 3% calcium oxide (CaO). There was a positive correlation (P<.05) between the fecal production estimated by the markers and via total feces collection, with coefficients higher than 90% for iDM, Cr2O3, and TiO2. The DMD and nutrients estimated with the use of markers was positively correlated (P<.05) with that obtained by total feces collection. Coefficients of correlation for digestibility obtained by total collection were higher than those obtained with Cr2O3, but close to those obtained using TiO2. The coefficient of correlation between the digestibility of protein and fiber fraction estimated with iDM and iNDF and that obtained by total collection was higher than 70%. Internal marker iDM and external markers Cr2O3 and TiO2 are effective in estimating fecal production and DMD and nutrients.

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“…Após a lavagem, os sacos de polipropileno foram levados à estufa de ventilação forçada, com temperatura de 65ºC para pré-secagem, durante 72 horas. Após esse processo, foi determinada a fibra em detergente neutro da fração indigestível das amostras, em determinador de fibra Tecnal®, conforme metodologia descrita por Detmann et al (2012) e Torres et al (2009)…”

Section: Methodsunclassified

Utilização da raiz de mandioca desidratada, em substituição ao milho, na suplementação de vacas holandesas em pastejo sobre o consumo voluntário, digestibilidade aparente e metabolismo energético

et al. 2015

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ResumoO experimento foi realizado para avaliar o efeito da substituição do milho moído por raiz integral de mandioca moída e desidratada nos níveis 0%, 25%, 50%, 75% e 100% nos suplementos experimentais para vacas lactantes mantidas em pastagens tropicais irrigadas e adubadas. Foram utilizadas 10 vacas da raça Holandesa, divididas em dois quadrados latinos 5x5, com média inicial de 150 dias de lactação, produção leiteira inicial de lactação de 22 kg/dia e peso corporal inicial médio de 603 kg, mantidos em pastagem formada por capim elefante (Pennisetum purpureum, SCHUM) cultivar pioneiro, consorciado com capim Tifton 85 (Cynodon nlemfuensis), irrigadas e adubadas com 600 kg de nitrogênio por hectare/ ano. Não foram encontrados efeitos significativos de substituição do milho moído por raiz integral de mandioca moída e seca no concentrado (P>0,05), sobre o consumo voluntário da dieta total, com média estimada de 20,61 kg/MS/animal/dia, digestibilidade aparente da MS com média estimada de 59,60% e balanço de energia, com média estimada de +6,36 Mcal dia -1 . Os resultados deste estudo demonstram que a raiz de mandioca pode ser utilizada como fonte energética de alto valor nutricional, semelhante ao do milho, na suplementação de vacas lactantes mantidas em pastagens tropicais. Palavras-chave: Carboidratos, forrageiras, ingestão, nutrição AbstractThe development of this experiment intended to evaluate the effect of replacing ground corn for dried and ground cassava roots with the levels of 0%, 25%, 50%, 75% and 100% in the experimental supplements for lactating cows kept on tropical irrigated and fertilized pastures. Ten Holstein cows were divided into two 5x5 Latin squares, with an initial lactation average of 150 days, 22 kg/day of average milk production of lactation and approximate initial average body eight of 603 kg. The animals were kept in pasture constituted by elephant grass (Pennisetum purpureum, SCHUM) cv Pioneer, associated with Tifton 85 grass (Cynodon nlemfuensis), irrigated and fertilized with 600 kg of nitrogen per hectare/ year. No significant effects on the substitution of ground corn for dried and ground cassava roots in the concentrate (P>0.05) over the spontaneous consumption of the total diet, with estimated average of 20.61 kg/DM/animal/day, apparent digestibility of DM with estimated average of 59.60% and energy balance with estimated average of +6.36 Mcal day -1 . The results of this study demonstrate that the cassava root can be used as an energy source of high nutritional value for supplementation of lactating cows grazing on tropical pastures, similar to corn results.

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Substituição da palma-gigante por palma-miúda em dietas para bovinos em crescimento e avaliação de indicadores internos

Cited by 24 publications

References 16 publications

Effect of Solid State Fermentation on Nutritional Content and Evaluation of Degradability in Cactus Pear

Effect of Solid State Fermentation on Nutritional Content and Evaluation of Degradability in Cactus Pear

Digestibility markers of sheep diets containing hydrolyzed sugarcane-top hay

Utilização da raiz de mandioca desidratada, em substituição ao milho, na suplementação de vacas holandesas em pastejo sobre o consumo voluntário, digestibilidade aparente e metabolismo energético

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