Comparative effects of dietary carbohydrases without or with protease on the ileal digestibility of energy and amino acids and AMEn in young broilers

Romero, L. F.; Parsons, C. M.; Utterback, P. L.; Plumstead, P. W.; Ravindran, V.

doi:10.1016/j.anifeedsci.2013.02.001

Cited by 73 publications

(65 citation statements)

References 29 publications

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“…According to Sartori et al (2007), exogenous enzymes have the ability to maintain or even improve the performance of animals by helping to digest substandard products. These benefits are related to improvements in the digestion process and absorption of the undigested fraction of dietary starch and fat and the regulation of several digestive secretions (ROMERO et al, 2013).…”

Section: Resultsmentioning

confidence: 99%

Dry residue of cassava as a supplementation in broiler feed with or without addition of carbohydrases

Broch¹,

Nunes²,

Oliveira³

et al. 2017

SCA

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The objective of this study was to evaluate the inclusion of dry residue of cassava (DRC) with or without supplementation of carbohydrases on performance, carcass yield, cuts and organs, blood parameters and meat quality of broiler chickens. Birds were distributed in a completely randomised design in a 2 x 5 factorial scheme, with or without addition of carbohydrases and five levels of DRC inclusion, resulting in 10 treatments with 5 replicates of 22 birds each. At 21 days of age, two birds of each treatment were fasted for 6 hours for blood brachial puncture. At 42 days, four birds per pen were slaughtered to determine carcass yield, cuts, organs, percentage of abdominal fat and meat quality. Between 1-21 days of age, there was an interaction (P < 0.05) between carbohydrase and DRC supplementation on weight gain (WG) and feed intake, which showed a decreasing linear effect without the inclusion of carbohydrases. In the period from 1 to 42 days, there was an interaction (P < 0.05) between carbohydrase supplementation and DRC inclusion on the variables WG and feed conversion. Carbohydrase inclusion provided an increase (P < 0.05) in the concentrations of cholesterol, triglycerides, creatinine, gamma GT and blood glucose. Concentrations of gamma GT were increased and levels of alanine aminotransferase and creatinine were decreased (P < 0.05) with DRC inclusion. At 24 hours post mortem, there was a significant interaction (P < 0.05) for breast meat between carbohydrase supplementation and DRC inclusion for the variable L. The analysed values of pH, water holding capacity and shear force of the breast meat were not affected (P > 0.05) by DRC inclusion and carbohydrase addition. However, cooking loss was influenced (P < 0.05) by levels of inclusion of DRC. The L and a* variable and the feet of broiler chickens were not affected (P > 0.05) by DRC levels and carbohydrase addition. The colour variable b* showed a decrease (P < 0.05) from 5% level of inclusion. The results of this study show that DRC can be used in the diets of broiler chickens from 1 to 21 days old to the assessed level of 10%, provided that carbohydrase is added. ResumoO objetivo do trabalho foi avaliar a inclusão do resíduo seco de fecularia (RSF) com ou sem a suplementação de carboidrases sobre o desempenho, o rendimento de carcaça, cortes e órgãos, parâmetros sanguíneos e qualidade da carne de frangos de corte. As aves foram distribuídas em um delineamento inteiramente casualizado, em esquema fatorial 2x5, constituído da combinação da adição ou não de carboidrases e cinco níveis de inclusão de RSF, resultando em 10 tratamentos, com cinco repetições de 22 aves cada. Aos 21 dias de idade, duas aves por unidade experimental foram mantidas em jejum por 6 horas, para coleta de sangue via punção braquial. Aos 42 dias de idade, quatro aves por unidade experimental foram abatidas para determinação do rendimento de carcaça, cortes, órgãos, porcentagem de gordura abdominal e avaliação da qualidade da carne. No período de 1 a 21 dias de idade houve in...

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Section: Resultsmentioning

confidence: 99%

Dry residue of cassava as a supplementation in broiler feed with or without addition of carbohydrases

Broch¹,

Nunes²,

Oliveira³

et al. 2017

SCA

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“…A similar response of increase in apparent metabolizable energy (AME) from feed materials [12] has been observed with the supplementation of protease. This improvement might be due to the better amino acid utilization, which contributes for certain level energy from amino acids and could create a better access to other endo and exogenous enzymes [2]. Better nutrient efficiency by protease supplementation might be due to the enhanced nutrient utilization, which minimizes the indigestible nutrients [8].…”

Section: Fig 1 Body Weight Gain (G) and Fcr Of Broilers Fed With CC mentioning

confidence: 99%

“…Most of the proteins in soybean are easily digested, except some, like glycinin, protease inhibitors and antigenic proteins which may predispose the intestinal damage and impair the immune function [1]. With the development of enzyme technologies, protease application helps to enhance the protein and amino acid digestibility [2], as well encourages the addition of alternate protein feed materials which helps to reduce the feed cost. However, different proteases with different inherent characteristics may elicit divergent responses in vivo [3].…”

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confidence: 99%

Comparative Effects of Coated Compound and Mono-component Proteases on Growth Performance and Nutritional Efficiency in Broiler Diets

Chandrasekar¹,

Das²,

Bashir³

et al. 2017

JAST-A

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Protease as feed additive is being used in poultry production as a partial replacement for protein sources for cost efficiency and reducing nitrogen excretion. However, diverse proteases may yield different responses under field conditions. A pellet diet study was conducted in Cobb broilers to assess the impact of coated compound (CC) and mono-component (MC) proteases with 5% replacement of digestible amino acids and 0.9% crude protein. Birds fed positive control diet had a better growth than those fed negative control diet, regardless of enzyme supplementation. However, CC protease had shown feed conversion ratio (FCR) like control in a reformulated diet, whereas negative control and MC protease missed to gain the feed conversion. In measures of nutritional efficiency, like energy efficiency, protein efficiency and amino acids efficiency (lysine and methionine), the CC protease proved to be better than MC protease. In terms of European efficiency factor (EEF), control and CC protease elicited a closer response, whereas the other two groups showed a drop. In this study, CC protease allowed partial substitution of digestible amino acids and crude protein, while maintaining feed efficiency and animal performance. It could be concluded that incorporating CC proteases is an efficient choice to maximize the utilization feed material resources and efficiency in animal protein production.

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“…A adição da enzima pode melhorar o aproveitamento da energia do ingrediente assim como a digestibilidade ileal aparente de aminoácidos dos ingredientes (Romero et al, 2013).…”

Section: Enzimas Na Nutrição Animalunclassified

Uso de enzimas para aumentar a qualidade nutricional de farinhas de origem animal

Silva¹,

Gouveia²,

Silva³

et al. 2018

Pubvet

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RESUMO.O crescimento contínuo da indústria de alimentos resulta em uma grande quantidade de resíduos provindos dos frigoríficos de abate animais. O processamento dessa carne resulta em uma enorme quantidade de resíduos. A quantidade de resíduos produzidos além de ser uma grande perda de coprodutos com amplo potencial para reuso na cadeia produtiva, também causam sérios problemas de gestão, tanto do ponto de vista econômico como ambiental. Um dos resíduos gerados são as farinhas de origem animal (FOA), ingrediente rico em proteína, minerais e fonte energia em para rações de animais monogástricos. O uso de enzimas se torna uma estratégia interessante, pois podem tornar as FOA em ingrediente de maior valor nutricional. A suplementação enzimática beneficia a digestão e a absorção dos ingredientes, e sua adição em farinhas de origem animal pode melhorar a qualidade nutricional das rações e, consequentemente, o desempenho dos frangos. Esta revisão apresenta uma discussão sobre as enzimas uteis para nutrição de animais, principalmente as proteases utilizadas na hidrolise de resíduos proteicos, como as FOA. Palavras-chave: alimentos, avicultura, enzimas, nutriçãoUse of enzymes to increase the nutritional quality of animal meal for feed production.ABSTRACT. The continued growth of the food industry results in a large amount of animal slaughterhouse waste. The processing of this meat results in a huge amount of coproduct. The large amount of waste produced besides being a great loss of material with great potential for reuse in the productive chain, also causes serious management problems, both economic and environmental. One of the residues generated is animal meal (FOA), an ingredient rich in proteins, minerals and energy source in rations of monogastric animals. The use of enzymes becomes an interesting strategy because they can make FOA an ingredient of greater nutritional value. Enzyme supplementation benefits the digestion and absorption of the ingredients, and their addition in animal meal can improve the nutritional quality of the rations and, consequently, the performance of the chickens. This review presents a discussion on enzymes useful for animal nutrition, especially the proteases used in the hydrolysis of protein residues, such as FOA.

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Comparative effects of dietary carbohydrases without or with protease on the ileal digestibility of energy and amino acids and AMEn in young broilers

Cited by 73 publications

References 29 publications

Dry residue of cassava as a supplementation in broiler feed with or without addition of carbohydrases

Dry residue of cassava as a supplementation in broiler feed with or without addition of carbohydrases

Comparative Effects of Coated Compound and Mono-component Proteases on Growth Performance and Nutritional Efficiency in Broiler Diets

Uso de enzimas para aumentar a qualidade nutricional de farinhas de origem animal

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