Influence of exogenous xylanase supplementation on apparent metabolisable energy and amino acid digestibility in wheat for broiler chickens

Hew, L.I.; Ravindran, V.; Mollah, Y.; Bryden, W. L.

doi:10.1016/s0377-8401(98)00206-5

Cited by 61 publications

(31 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…McCracken et al (2002) reported a significant improvement in metabolisability of energy (ME:GE) with enzyme supplementation to a low-viscosity diet, which also suggests that enzymes do more than simply reduce viscosity. The significant improvement in AMEIL with enzyme supplementation agrees with previous studies on the effect of enzyme supplementation in wheat-based broiler diets (Choct et al 1995;Hew et al 1998;Scott et al 1998b).…”

Section: Resultssupporting

confidence: 90%

Effect of cultivar and enzyme supplementation on nutrient availability and performance of broilers fed Maritime Canadian wheat

Rafuse¹,

Silversides²,

Bedford³

et al. 2005

Can. J. Anim. Sci.

View full text Add to dashboard Cite

Rafuse, J. L., Silversides, F. G., Bedford, M. R. and Simmins, P. H. 2005. Effect of cultivar and enzyme supplementation on nutrient availability and performance of broilers fed Maritime Canadian wheat. Can. J. Anim. Sci. 85: 493-499. The feeding value of wheat is affected by the content of soluble non-starch polysaccharides (NSP), which varies among cultivars and the environment in which they are grown. Dietary enzymes can reduce the negative effects of NSP and improve the apparent metabolizable energy (AME) content of the wheat. This study examined differences in feeding value of four wheat cultivars grown in 2 crop years in the Maritime provinces of Canada and the need for enzymes. In a growth trial, diets containing one of the Maritime wheats or corn were fed with or without commercial enzymes containing, for wheat-based diets a mixture of xylanase and protease, and for corn-based diets a mixture of xylanase, protease, and amylase. In a broiler chick bioassay, diets containing 80% wheat were fed with or without a commercial enzyme with xylanase and protease activities. Enzymes significantly lowered body weight gain of birds fed Walton wheat in the second year, and improved the grower feed conversion ratio of birds fed Norboro wheat. Enzyme supplementation significantly improved apparent metabolizable energy and digestibility of crude protein. The AME content did not appear to be a direct indicator of performance. There were significant differences in AME content among the wheat samples. Enzymes generally did not improve performance in this study, possibly due to the relatively low in vitro viscosity values of these samples. Maritime wheats were equal or compared favourably with the sample of wheat from Western Canada and to locally obtained corn. Mots clés: Blé, rendement des poulets de chair, énergie métabolisable apparente, enzymeThe feeding value of wheat is adversely influenced by the presence of anti-nutritional factors in the form of soluble non-starch polysaccharides (NSP). In the gastrointestinal tract of broilers, a portion of the NSP becomes soluble and results in sticky droppings, reduced uptake of nutrients, and decreased weight gain.

show abstract

Section: Resultssupporting

confidence: 90%

Effect of cultivar and enzyme supplementation on nutrient availability and performance of broilers fed Maritime Canadian wheat

Rafuse¹,

Silversides²,

Bedford³

et al. 2005

Can. J. Anim. Sci.

View full text Add to dashboard Cite

show abstract

“…The authors obtained an improvement by 9% in metabolizable energy utilization. This benefit was also observed by Dänicke et al (2000), Hew et al (1998), andCharlton (1996). Iwahashi (2009), working with growing quails.…”

Section: Resultssupporting

confidence: 59%

Enzyme Complex Added to Broiler Diets: Effects on Performance, Metabolizable Energy Content, and Nitrogen and Phosphorus Balance

Pessôa

Ribeiro

Albino

et al. 2016

Rev. Bras. Cienc. Avic.

View full text Add to dashboard Cite

Two trials were performed to evaluate the effects of an enzyme complex (EC) on broiler performance, metabolizable energy, and phosphorus and nitrogen balance. In the first trial, 960 one-day-old male Cobb broilers were randomly distributed in a 3 x 2 factorial arrangement (three nutritional levels and the inclusion or not of EC), totaling six treatments with eight replicates of 20 birds per pen, and reared until 42 days of age. The control diet was formulated to meet the broilers' nutritional requirements. The other diets contained reduced available phosphorus (P), metabolizable energy, and amino acid levels, considering 100% and 150% of the EC nutritional matrix. The inclusion of the EC (200 g/ton) resulted in better broiler performance, improving weight gain in 4% and feed conversion ratio in 3% (p<0.05). In the second trial, 240 male broilers were randomly distributed into the same treatments with eight replicates of five birds per cage. The method of total excreta collection was used. There was an interaction (p<0.05) between diets and EC for P intake, nitrogen (N) intake, and N retention. The EC supplementation improved nitrogen-corrected apparent metabolizable energy values in 2.02% (p<0.05). Significant effects were observed on phosphorus and nitrogen balance (p<0.05). Phosphorus retention improved in 10.26%, nitrogen retention increased in 5.3%, while nitrogen excretion decreased in 3.3%. Based on the results of the present study, we recommend the addition of 200 g/t of the enzyme complex to broiler diets, considering nutrient reduction based on 100% of the EC nutritional matrix.

show abstract

“…Melhor desempenho de frangos de corte com a suplementação de enzimas à dieta foi observado também por Schang et al (1997), Cousins (1999) e Zanella et al (1999b, que relacionaram essa melhoria à maior digestibilidade de proteína bruta, energia bruta e fibra, à redução dos fatores antinutricionais e à melhor utilização da energia, como observado por Charlton (1996), Hew et al (1998), Danicke et al (2000), Choct (2002) e Brito et al (2005) Segundo Zanella et al (1999), a inclusão de enzimas exógenas reduz a produção endógena de amilase em 23,4% e a de tripsina pancreática em 35,8%, o que poderia favorecer a síntese protéica no tecido muscular, pela maior disponibilização dos aminoácidos.…”

Section: Tabela 1 -Composições Percentual E Química Das Dietas Experiunclassified

Adição de complexo multienzimático em dietas à base de soja extrusada e desempenho de pintos de corte

Brito¹,

Albino²,

Rostagno³

et al. 2006

R. Bras. Zootec.

View full text Add to dashboard Cite

RESUMO -Objetivou-se avaliar os efeitos da adição de complexo multienzimático em dietas à base de soja extrusada submetida a três níveis de processamento sobre o desempenho de frangos de corte de 1 a 21 dias de idade. Foram utilizados 960 pintos de corte machos Avian Farms, em arranjo fatorial 3 x 2 (três dietas à base de soja extrusada subprocessada, normal e superprocessada × dois níveis de adição de complexo multienzimático: 0 e 0,05%), totalizando seis tratamentos com oito repetições de 20 aves por unidade experimental. As dietas foram formuladas para atender às exigências nutricionais das aves, com exceção da proteína bruta, da lisina e da metionina + cistina, que foram fornecidas em níveis subótimos para facilitar a detecção de diferenças no valor nutritivo. Os valores de solubilidade em KOH 0,2% e de urease das diferentes sojas extrusadas foram respectivamente: subporcessada = 91% e 0,5; processamento normal = 88% e 0,05 e superprocessada = 66 e 0,005%. O complexo multienzimático foi composto de celulase, amilase e protease, utilizando-se 500 mL/t. As aves e as rações foram pesadas no início e ao final da fase experimental (1 a 21 dias), para avaliação do ganho de peso, do consumo de ração e da conversão alimentar. A adição do complexo multienzimático em dietas contendo soja extrusada em diferentes níveis de processamento melhorou o ganho de peso em 3,85% e a conversão alimentar em 4,24%, observando-se o maior efeito no desempenho das aves alimentadas com soja extrusada subprocessada, melhorando 4,64% no ganho de peso e 5,0% na conversão alimentar. As aves alimentadas com dietas contendo soja extrusada normal apresentaram desempenho superior ao das alimentadas com soja extrusada sub e superprocessada.Palavras-chave: aditivos, alimento alternativo, enzimas, frangos de corte, processamento Addition of multienzymatic complex in different extruded full fat soybeans based diets on the broiler performance ABSTRACT -One experiment was conducted to evaluate the effect of the addition of multienzymatic complex in diets with different quality of extruded full fat soybeans on the performance of broiler chicks. A total of 960 Avian Farms male broiler chicks were used from 1 to 21 days of age. The completely randomized experimental design utilized a 3 x 2 factorial treatment structure with three extruded full fat soybeans (under, standard and over processed) and two levels of multienzymatic complex addition (0.0 and 0.05%). Total of six treatments and eight replicates of 20 birds for experimental unit. The diets were formulated to contain corn end extruded full fat soybeans, with crude protein, lysine and methionine+cystine below recommended levels to facilitate detection of nutritional differences. The solubility values in KOH 0.2% and urease of the different extruded full fat soybeans they were respectively: under processed (91% and 0.5), standard (88% and 0.05) and over processed (66% and 0.005%). The multienzymatic complex was composed with celulase, amylase and protease. The birds and ration were weighted in the ...

show abstract

Influence of exogenous xylanase supplementation on apparent metabolisable energy and amino acid digestibility in wheat for broiler chickens

Cited by 61 publications

References 15 publications

Effect of cultivar and enzyme supplementation on nutrient availability and performance of broilers fed Maritime Canadian wheat

Effect of cultivar and enzyme supplementation on nutrient availability and performance of broilers fed Maritime Canadian wheat

Enzyme Complex Added to Broiler Diets: Effects on Performance, Metabolizable Energy Content, and Nitrogen and Phosphorus Balance

Adição de complexo multienzimático em dietas à base de soja extrusada e desempenho de pintos de corte

Contact Info

Product

Resources

About