Consumo, digestibilidade total, produção de proteína microbiana e balanço de nitrogênio em dietas para ruminantes de subprodutos

Azevêdo, José Augusto Gomes; Filho, Sebastião de Campos Valadares; Piña, D. S.; Valadares, Rilene Ferreira Diniz; Detmann, Edênio; Paulino, Mário Fonseca; Diniz, L.L.; Fernandes, Henrique Jorge

doi:10.1590/s0102-09352011000100018

Cited by 11 publications

(3 citation statements)

References 7 publications

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“…Alternatives to foods commonly used in intensive confinement systems have been researched, particularly due to the impact of this component on the cost of the system. In this context, agroindustrial residues have shown nutritional potential in the diet of ruminants, with satisfactory results on intake and animal performance (Azevêdo et al, 2011a(Azevêdo et al, , 2011b.…”

Section: Introductionmentioning

confidence: 99%

Performance of Sheep Fed on Annatto Byproduct

Júnior

Carvalho

Clementino

et al. 2014

Italian Journal of Animal Science

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This study aimed to evaluate intake, digestibility, and performance in sheep fed increasing levels of annatto byproduct (AB). A total of 32 male sheep without defined breed were used. Their initial weight was 23.17±1.45 kg. The animals were housed in individual pens and offered feed twice a day. Nutrient intake was quantified by the difference between the fractions present in the offered feed and the remains. The apparent digestibility was estimated with the aid of the external marker LIPE ® . Weight gain was measured by the difference between the initial and final weight of the animals. The intake of dry matter (DM; g/day; g/kg BW; g/kg 0.75 ), organic matter (g/day), crude protein (CP; g/day), and neutral detergent fibre (g/day) was not affected (P>0.05) by addition of AB. The intake of ether extract (EE; g/day) and non-fibre carbohydrates (g/day) was influenced by the inclusion of AB. The apparent digestibility of DM, organic matter, CP, and EE was not affected (P>0.05) by the addition of AB. The AB can be included in the diet at levels up 300 g/kg of total DM without affecting consumption, digestibility, and weight gain in sheep.

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Section: Introductionmentioning

confidence: 99%

Performance of Sheep Fed on Annatto Byproduct

Júnior

Carvalho

Clementino

et al. 2014

Italian Journal of Animal Science

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“…Zootec., 47:e20170126, 2018 be related to the higher lignin content of this diet, which was proven in the chemical composition of the byproduct (Tables 1 and 2). Azevêdo et al (2011) considered cocoa husks a lowenergy (TDN 588.30 g kg −1 DM) byproduct with a high cell wall content, which is associated with its lignin concentration (185.40 g kg −1 DM). In the present study, the 370.70 and 280.30 g kg −1 DM values found for TDN and lignin, respectively, are attributed to the reduced digestibility of the fibrous fractions in the evaluated diets (ADFd and NDFd) with the inclusion of the highest level of cocoa byproduct (Tables 1 and 2).…”

Section: Discussionmentioning

confidence: 99%

Cocoa byproduct in diets for dairy heifers

et al. 2018

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This study was conducted to evaluate the effect of substituting Tifton 85 hay (Cynodon sp. cv. Tifton 85) with levels of cocoa (Theobroma cacao) byproduct (0, 8, 16, and 24%, diet dry matter basis) in the diet of 16 Holstein × Gir heifers with an average body weight of 363.0±27.7 kg on their nutrient intake, digestibility, and protein balance. The experimental period was 17 days, and the sample collection period was five days. There was no effect of cocoa byproduct on nutrient intake. However, the byproduct affected the digestibility of dry matter, crude protein, neutral detergent fiber, and acid detergent fiber, all of which decreased as the level of inclusion of the byproduct in the diet was increased. Nitrogen balance was negatively affected by the inclusion of 24% cocoa byproduct. It is recommended to use cocoa byproduct up to the level of 16% to replace Tifton 85 grass hay in diets for dairy heifers.

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“…Ruminant diets with CH can have a negative impact on intake, this is because a portion of the ingested fiber that is resistant to fermentation by ruminal microorganisms accumulates in the rumen compared with the potentially digestible fraction (ALLEN; MERTENS, 1987) and consequently, has a direct effect in terms of reducing animal performance (ALY, 1981;AREGHEORE, 2002;CARVALHO et al, 2004;MARCONDES et al, 2009;AZEVÊDO et al, 2011). Thus, alternatives designed to increase the potentially digestible fraction of fiber or its digestion rate can have positive impacts on the animals' intake and performance.…”

Section: Introductionmentioning

confidence: 99%

Kinetics in vitro of ruminal fermentation of cocoa husks subjected to alkali and heat treatment

et al. 2015

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The objective was to evaluate the parameters of kinetics of ruminal fermentation of cocoa husks (CH) treated with alkali and thermal agents, using the semi-automated in vitro gas production technique. Cocoa husks samples were subjected to alkali and thermal methods (effect of time of exposure) treatment, as follows: control; alkaline treatment with calcium hydroxide ((Ca(OH) 2 ) and calcium oxide (CaO), both doses of 15.0; 30.0 and 45.0 g kg -1 of CH; heat treatment in an autoclave at a pressure of 1.23 kg cm -2 (15 psi) and a temperature of 123°C for 30, 60 and 90 minutes. For statistical analysis, orthogonal contrasts and regression. The degradation rate and the final volume of gases of non-fiber carbohydrates decreased with the addition of Ca(OH) 2 and CaO, however, for fibrous carbohydrates effects were positive. For each percentage of Ca(OH) 2 and CaO included, it is estimated an increase of 5.74 and 2.9% in the final volume of the fiber, respectively. When the heat treatment, a decrease in all parameters was estimated. For each minute of exposure to heat, there was a decrease of 0.4% in total final volume of gases. The alkali treatment can be an efficient alternative for improving the digestibility of fibrous fractions of CH. Key words: Alternative feed, chemical treatment, residue, ruminants ResumoObjetivou-se avaliar os parâmetros da cinética de fermentação ruminal da casca de cacau (CC) tratada com agentes alcalinos e térmicos, utilizando a técnica in vitro semi-automática de produção de gases. Amostras da CC foram submetidas aos métodos de tratamento alcalino e térmico (efeito do tempo de exposição), assim distribuídos: controle; tratamento alcalino com hidróxido de cálcio (Ca(OH) 2 ) e óxido de cálcio (CaO) com pressão de 1,23 kg cm -2 (15 psi) e temperatura de 123º C durante 30, 60 e 90 minutos. Para análise estatística, foram utilizados contrastes ortogonais e regressão. A taxa de degradação e o volume final dos gases dos carboidratos não fibrosos decresceram com a inclusão de Ca(OH) 2 e CaO, entretanto, para os carboidratos fibrosos os efeitos foram positivos. Para cada percentual de Ca(OH) 2 e CaO incluídos, estima-se um acréscimo de 5,74 e 2,9 % no volume final dos carboidratos fibrosos respectivamente. Quanto ao tratamento térmico, houve decréscimo em todos os parâmetros estimados. Para cada minuto de exposição ao calor, houve diminuição de 0,4% no volume final total dos gases. O tratamento alcalino pode ser uma alternativa eficaz para a melhoria da digestibilidade das frações fibrosas da CC.

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Consumo, digestibilidade total, produção de proteína microbiana e balanço de nitrogênio em dietas para ruminantes de subprodutos

Cited by 11 publications

References 7 publications

Performance of Sheep Fed on Annatto Byproduct

Performance of Sheep Fed on Annatto Byproduct

Cocoa byproduct in diets for dairy heifers

Kinetics in vitro of ruminal fermentation of cocoa husks subjected to alkali and heat treatment

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