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Substituição do farelo de soja pelo de guandu na alimentação de frangos de corte

Authors: Pezzato, Antonio Celso; Silveira, Antonio Carlos; Pezzato, Luiz Edivaldo; Arrigoni, Mario de Beni;

Substituição do farelo de soja pelo de guandu na alimentação de frangos de corte

Abstract

Este trabalho teve como objetivo avaliar o valor nutritivo do farelo de guandu (FG) suplementado com metionina com vistas à substituição do farelo de soja (FS) em dietas para frangos de corte com 1 a 28 dias de idade. O delineamento experimental foi o de blocos ao acaso, num esquema fatorial 3 x 3, com três níveis de substituição - 15, 30 e 45% - e três níveis de suplementação de metionina em relação às exigências, ou seja, 100, 66 e 33%, com quatro repetições. Constatou-se que o FG tratado durante 20 minutos a 100°C substituiu até 30% da proteína do FS, mesmo sem suplementação com metionina, em relação ao peso vivo (p < 0,01), à conversão alimentar e à eficiência de utilização da energia metabolizável e da proteína (p < 0,05). No nível de suplementação de 66% de metionina, obtiveram-se esses mesmos resultados quanto a esses parâmetros em todos os níveis de substituição do FS pelo FG. A substituição em 30% ou 45% da proteína do FS pela do FG, afetou (p < 0,01) a eficiência da utilização da metionina. A eficiência de utilização dos aminoácidos sulfurados foi afetada (p < 0,01) a partir de 66% de suplementação de metionina nas dietas, em todos os níveis de FG.

The objective of this work was to evaluate the nutritive value of pigeon pea meal (PPM) with methionine substituting soybean meal (SM) in diets for 1-28 day-old broiler chicks. The experimental design was that of random blocks, in a 3 × 3 factorial scheme with three substitution levels - 15,30 and 45% - and three methionine supplementation levels in relation to the requirements, that is: 100, 66 and 33%, with four repetitions. It was found that PPM treated for 20 minutes at 100°C substituted up to 30% of the SM, even without methionine supplementation, in relation to liveweight (p<0.01), to food conversion and to the efficiency of utilization of metabolizable energy and to protein (p<0.05). At the 66% level of methionine supplementation, the same results as for these parameters were obtained at all of the levels of substitution of SM by PPM. The 30% or 45% substitution of SM protein by that of PPM affected (p<0.01) the efficiency of methionine utilization. The sulphur amino acid utilization efficiency was affected (p<0.01) beginning at 66% methionine supplementation in the diets.

Country
Brazil
Keywords

Methionine, Sulphur amino acid, Glycine max, Protein, Metabolizable energy, Columba, Gallus gallus, Protease inhibitors, Pisum sativum, Cajanus cajan

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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