Efeito da Relação Arginina: Lisina sobre o Desempenho e Qualidade de Carcaça de Frangos de Corte de 3 a 6 Semanas de Idade, em Condições de Alta Temperatura

Costa, Fernando Guilherme Perazzo; Rostagno, Horácio Santiago; Toledo, Rodrigo Santana; Albino, Luiz Fernando Teixeira

doi:10.1590/s1516-35982001000800010

Cited by 15 publications

(12 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…por Costa et al (2001) 35,79 isoleucina -0,243 isoleucina 2 , r 2 = 0,99) resposta quadrática. Os valores das relações encontradas pelo modelo quadrático para o ganho de peso e peso de peito foram 73 e 71%, respectivamente (Figura 1).…”

Section: Resultsunclassified

Atualização da proteína ideal para frangos de corte: arginina, isoleucina, valina e triptofano

Campos¹,

Rostagno²,

Nogueira

et al. 2012

R. Bras. Zootec.

Self Cite

View full text Add to dashboard Cite

RESUMO -Dois experimentos foram realizados com o objetivo de determinar as relações adequadas de arginina:lisina, isoleucina:lisina, valina:lisina e triptofano:lisina digestíveis para frangos machos nas fases inicial (7 a 21 dias) e de crescimento (28 a 40 dias de idade). Um total de 1.800 frangos no período inicial e de 1.440 no período de crescimento foi distribuído em delineamento inteiramente casualizado com 9 tratamentos e oito repetições de 25 e 20 aves por unidade experimental nos períodos inicial e de crescimento, respectivamente. and 82,5 valine:lysine; 14, 17 and 20 tryptophan:lysine. Diets were formulated to meet or exceed the nutritional requirements in both periods, except for digestible lysine (1.08% for the starter period and 0.98% for the finisher). At the end of each experiment, weight gain, feed intake, feed conversion and breast and breast fillet weight and yield were determined. In the starter period, the arginine:lysine and tryptophan:lysine ratios did not affect the evaluated parameters, but there were linear effects of isoleucine:lysine and valine:lysine ratios on birds weight gain and feed conversion. In the finisher period, the arginine:lysine ratios influenced linearlly weight gain and feed conversion. There was a quadratic effect of isoleucine:lysine, valine:lysine, and tryptophan:lysine on weight gain. The increase in the isoleucine:lysine and valine:lysine ratios results in better performance of the broilers from 7 to 21 days of age. The recommended isoleucine:lysine, valine:lysine and tryptophan:lysine ratios for broilers from 28 to 40 days of age are 69, 76 and 18%, respectively.

show abstract

Section: Resultsunclassified

Atualização da proteína ideal para frangos de corte: arginina, isoleucina, valina e triptofano

Campos¹,

Rostagno²,

Nogueira

et al. 2012

R. Bras. Zootec.

Self Cite

View full text Add to dashboard Cite

show abstract

“…Costa et al (2001), no entanto, observaram efeito linear decrescente dos níveis de lisina sobre a deposição de gordura, confirmando os resultados obtidos por Baker & Molitoris (1991). Nesta pesquisa, a deposição de gordura abdominal foi influenciada pelo balanço eletrolítico da ração (P<0,05), o que pode estar relacionado ao efeito do potássio, que ativa ou funciona como co-fator de vários sistemas enzimáticos relacionados diretamente à transferência e utilização de energia e à síntese protéica (aumento da captação de aminoácidos pelas células), entre outros.…”

Section: Resultsunclassified

Níveis de lisina com dois balanços eletrolíticos para frangos de corte na fase de crescimento (22 a 40 dias)

Campestrini¹,

Barbosa²,

Nunes

et al. 2008

R. Bras. Zootec.

View full text Add to dashboard Cite

RESUMO -Objetivou-se avaliar os níveis de lisina para frangos de corte na fase de crescimento (22 a 40 dias de idade) ABSTRACT -The lysine levels for chickens in the growing phase (22 to 40 days of age) by using two different electrolytes balance were evaluated. Sixty-four hundred Cobb broiler male of 21 days old were allotted to a completely randomized design as a factorial arrangement of treatments, five lysine levels (1.062, 20, 40, and 60% above and 20% below of recommended levels) and two electrolytes balance (190 and 255 mEq/kg), with four replicates and 16 broilers for experimental unit. There was no interaction among the variables studied, however the lysine levels affected final weight, weight gain and the feed:gain ratio and feed intake, however, the best adjustments were observed when the discontinue LRP model was used, where values above 1.089 and 1.14% of lysine did not increase weight gain and feed:gain ratio. Concerning the blood parameters, only uric acid was affected by lysine levels, but no difference was observed for carcass and prime cuts yield, the abdominal fat was influenced by the dietary electrolyte balance. Lysine levels above 1.089 and 1.14 for weight gain and feed:gain ratio, respectively, did not impair broiler performance. The lysine levels affected neither carcass yield and nor prime cuts yield.Key Words: amino acids, cut birds, electrolytes balance, lysine IntroduçãoO objetivo na produção de frangos de corte tem se modificado ao longo dos últimos anos, com o aumento do consumo interno e das exportações de partes desossadas em detrimento da carcaça inteira. Dessa forma, o rendimento de cortes como peito e pernas, aliado a carcaças com menor quantidade de gordura, passou a ser fundamental para a indústria.A algum tempo atrás, as dietas das aves eram formuladas com base em proteína bruta, o que poderia resultar em grandes perdas, tanto energéticas quanto econômicas, principalmente quando ocorriam desbalanceamento entre aminoácidos. Atualmente, recomenda-se formular dietas

show abstract

“…In contrast, the levels tested by these and other authors were lower than the ones used in this experiment, leading to some differences in the results obtained. Burton & Waldroup (1997) reported a total Arg requirement of 1.40% in 1-28-day old broilers fed a 21% raw protein diet, and Costa et al (2001) studied male Ross broilers aged 22-42 days submitted to seven Arg:Lys ratios ranging from 95 to 132.5% and did not observed an effect of Arg level on performance characteristics. Chamruspollert et al (2002) reported a total Arg requirement of 1.26% for weight gain and 1.27% for feed conversion.…”

Section: Discussionmentioning

confidence: 99%

Effects of starter diet supplementation with arginine on broiler production performance and on small intestine morphometry

et al. 2012

View full text Add to dashboard Cite

The effects of starter diet (days 1 to 21) supplemented with arginine (Arg) on the production performance and duodenum and jejunum mucosa morphometry of broilers were studied. Male Cobb broiler chickens (990) were randomly assigned to one of ϐive treatments in a complete random design. Measurements of 33 chicks per treatment were made in six repetitions. The treatments consisted of a basal diet with 1.390% digestible Arg (no supplementation) and four dietary levels (1.490%, 1.590%, 1.690%, and 1.790%), providing a relationship with lysine of 1.103; 1.183; 1.262; 1.341 and 1.421%, respectively. From the age of 22 days on, all birds received conventional grower diet. The data were submitted to regression analysis by polynomial decomposition of the degrees of freedom in relation to the levels of Arg. The Arg supplementation increased (P<0.05) the live weight and the feed conversion ratio without increasing the feed intake of the birds. However, no effect was observed (P>0.05) in the growth phase (days 22 to 42) in the absence of the Arg supplementation. The supplementation of Arg over of NRC recommendation during the starter phase may be necessary for the expression of the maximal weight gain potential in birds. No effect (P<0.05) of Arg dietary supplementation was observed either on small intestine weight and length at any age. However, the duodenum villus:crypt ratio increased and the crypt depth decreased in the ϐirst week in response to increasing dietary Arg. It is concluded that broiler Arg dietary supplementation in the starter diet improved production performance and small intestine morphometry, especially in the ϐirst week.

show abstract

Efeito da Relação Arginina: Lisina sobre o Desempenho e Qualidade de Carcaça de Frangos de Corte de 3 a 6 Semanas de Idade, em Condições de Alta Temperatura

Cited by 15 publications

References 8 publications

Atualização da proteína ideal para frangos de corte: arginina, isoleucina, valina e triptofano

Atualização da proteína ideal para frangos de corte: arginina, isoleucina, valina e triptofano

Níveis de lisina com dois balanços eletrolíticos para frangos de corte na fase de crescimento (22 a 40 dias)

Effects of starter diet supplementation with arginine on broiler production performance and on small intestine morphometry

Contact Info

Product

Resources

About