Can betaine partially replace or enhance the effect of methionine by improving broiler growth and carcase characteristics?

McDevitt, R. M.; Mack, Stefan; Wallis, Ian R.

doi:10.1080/713654957

Cited by 78 publications

(68 citation statements)

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“…De modo geral, alguns estudos não conseguiram provar o efeito benéfico da suplementação da betaína sobre as variáveis de desempenho zootécnico, mesmo se aplicando níveis nutricionais subótimos e desafios ambientais (Rostagno & Pack, 1996;Schutte et al, 1997;Esteve-Garcia & Mack, 2000;Mcdevitt et al, 2000;Kermanshahi, 2001).…”

Section: Resultsunclassified

Efeito da suplementação de betaína em dietas de frangos de corte em condições de termoneutralidade

Sakomura

Barbosa

Silva

et al. 2013

Agraria

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RESUMOO objetivo deste trabalho foi avaliar o efeito da inclusão de betaína em dietas sobre o desempenho e morfometria intestinal de frangos de corte, durante os períodos de 1 a 7 e 8 a 21 dias de idade. Foram utilizados 1.408 pintos de corte machos Cobb, distribuídos aleatoriamente em 4 tratamentos com 16 repetições de 22 aves, em quatro câmaras climáticas. Os tratamentos foram: i) controle positivo -dieta formulada de acordo com as exigências nutricionais da ave; ii) controle negativo -com redução nos níveis de metionina e colina; iii) controle negativo + suplementação de 0,092% de betaína em substituição parcial de metionina e total da colina iv) controle negativo + suplementação de 0,1% de betaína natural em substituição parcial de metionina e total da colina. O consumo de ração, o ganho de peso e a conversão alimentar foram avaliados aos sete e 21 dias de idade. Aos 25 dias avaliaram-se as variáveis altura e profundidade de cripta jejunal, em que os resultados obtidos foram submetidos à análise de variância e teste de comparação de médias; já os resultados obtidos com a suplementação da betaína nas rações demonstraram efeitos positivos apenas no consumo de ração na fase de 1 a 7 dias e altura dos vilos da mucosa do jejuno na fase de 8 a 21 dias. A suplementação de 0,1% betafin (96% de betaína natural) na ração proporcionou melhorias nas características morfológicas do intestino delgado de frangos de corte. Palavras-chave: aditivos, integridade intestinal, metionina Effect of betaine supplementation in diets for broiler chickens on thermoneutral environment ABSTRACTThe aim of this study was to evaluate the effect of inclusion of betaine in broiler diets on performance and intestinal morphology of broilers during periods 1 to 7 and 8 to 21 days old. Were used 1,408 Cobb male broiler, randomly assigned into 4 treatments with 16 replicates of 22 birds in environmental chambers. The treatments were: i) positive control -diet formulated according to the nutritional requirements of the birds; ii) negative control -with reduction levels of methionine and choline; iii) negative control + 0.092% supplementation of betaine in substitution of methionine and total choline; iv) negative control + 0.1% supplementation of natural betaine to replace partial methionine and total choline. Were evaluated feed intake, weight gain and feed conversion at 7 and 21 days old. At 25 days were evaluated crypt height and depth of jejunum. The results were analyzed by ANOVA and mean comparison test. The results obtained with the supplementation of betaine in the feed only demonstrated a positive effect on feed consumption during 1 to 7 days, and villous height of the jejunum in the period of 8 to 21 days. Supplementation of 0.1% betafin (96% natural betaine) in the diet provided significant improvements in the morphological characteristics of the small intestine of broilers.

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Section: Resultsunclassified

Efeito da suplementação de betaína em dietas de frangos de corte em condições de termoneutralidade

Sakomura

Barbosa

Silva

et al. 2013

Agraria

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“…In these studies, betaine was twice as efficient as methionine. According to the results of several other studies, betaine and methionine cannot replace each other (for example, Schutte et al 1997;McDevitt et al 2000). The extent to which methionine can be substituted by betaine may depend on the dietary supply of cystine as well.…”

Section: Betaine As a Functional Substitute For Methionine And Cholinementioning

confidence: 99%

“…Due to reductions in carcass fat content and higher percentages of lean carcass, betaine is often referred to as a 'carcass modifier'. In poultry, reductions in abdominal fat were obtained (for example, McDevitt et al 2000;Wang, 2000) and breast-muscle yield was enhanced (for example, Firman & Remus, 1999) (Table 3). In pigs, carcass fat content was reduced by as much as 10 to 18 % (Wang et al 2000b;Fernandez-Figares et al 2002) (Table 3).…”

Section: Animal Performance and Carcass Qualitymentioning

confidence: 99%

Potential nutritional and physiological functions of betaine in livestock

et al. 2005

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The present review summarises the potential nutritional and physiological functions of betaine as a feed additive in relation to performance criteria in livestock production. Betaine, the trimethyl derivative of the amino acid glycine, is a metabolite of plant and animal tissues. In plants, betaine is particularly synthesised and accumulated as an osmoprotectant against salt and temperature stress. In animals, betaine is the product of choline oxidation or it originates from nutritional sources. Over the past decades, numerous studies have been carried out to investigate the potential effects of betaine supplementation on animal performance. Due to its chemical structure, betaine shows the characteristics of a dipolar zwitterion resulting in osmoprotective properties. Promoting effects on the intestinal tract against osmotic stress occurring during diarrhoea or coccidiosis have been reported following betaine supplementation in pigs and poultry. There is also some evidence that dietary betaine may improve the digestibility of specific nutrients. As a product of choline oxidation, betaine is involved in transmethylation reactions of the organism. Betaine as a methyl donor provides its labile methyl groups for the synthesis of several metabolically active substances such as creatine and carnitine. Supplementation with betaine may decrease the requirement for other methyl donors such as methionine and choline. There is also some evidence for enhanced methionine availability after dietary supplementation of betaine resulting in improved animal performance. Alterations in the distribution pattern of protein and fat in the body have been reported following betaine supplementation. A more efficient use of dietary protein may result from a methionine-sparing effect of betaine, but also direct interactions of betaine with metabolism-regulating factors have to be considered. Though the mode of action of betaine as a carcass modifier remains open, there is, however, growing evidence that betaine could have a positive impact both on animal performance and carcass quality.

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“…It is feasible that the potentially beneficial effects of betaine were negated by the fishmeal in the diet, which would have provided choline (Kidd et al, 1997). However, the inability of betaine to compensate for suboptimal levels of methionine are consistent with the findings of McDevitt et al (2000).…”

Section: Discussionmentioning

confidence: 61%

The effect of organic diets on the performance of pullets maintained under semi-organic conditions

Acamovic

Sandilands

Kyriazakis

et al. 2008

Animal

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The effects of organic diets, with or without supplements of betaine, saponin, fructo-oligosaccharide and methionine, on the health, performance and gut flora of pullets were investigated. A comparison was also made between birds fed organic diets and those fed a non-organic diet. Day-old Lohmann Tradition pullets were reared in 24 groups of 64 chicks indoors until 11 weeks, and then in 48 groups of 24 to 27 chicks with access to range until 17 weeks of age. Groups of birds were fed one of eight diets, a conventional rearing diet with supplementary amino acids, an organic basal diet, organic basal plus methionine and organic basal supplemented with one of the test ingredients. At most stages of growth the birds fed the conventional diet and those fed the basal diet with methionine performed better than those that had no supplemental methionine. Other dietary treatments had no consistently significant effect on growth, the microbial populations within the gastro-intestinal tract of the birds or the number of parasite eggs excreted. After 5 weeks with access to range, the birds that were fed three out of five diets regarded as deficient in sulphur amino acids achieved similar weights (P . 0.05) to birds that received diets adequate in sulphur amino acids. Health and welfare of birds fed organic diets was not adversely affected; however, an investigation of birds housed in larger flocks and taken into the laying phase, when physical demands on birds are greatest, is required.

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Can betaine partially replace or enhance the effect of methionine by improving broiler growth and carcase characteristics?

Cited by 78 publications

References 0 publications

Efeito da suplementação de betaína em dietas de frangos de corte em condições de termoneutralidade

Efeito da suplementação de betaína em dietas de frangos de corte em condições de termoneutralidade

Potential nutritional and physiological functions of betaine in livestock

The effect of organic diets on the performance of pullets maintained under semi-organic conditions

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