2009
DOI: 10.1590/s1516-35982009001200002
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Relação lisina digestível: proteína digestível em rações para tilápias-do-nilo

Abstract: Digestible lysine/digestible protein ratio in diets for Nile tilapiaABSTRACT -This study was carried out to determine the best digestible protein/digestible lysine ratio that should be present in feed fed to Nile tilapias. Two hundred and sixteen tilapias (11.0 ± 0.43g) were distributed in 36 fish tanks (205 L)at a density of 6 fish/tank. Twelve feeds were formulated with three different digestible protein (DP) levels 22.0; 26.0 and 30.0% (based on digestible amino acids) and four different lysine percentages … Show more

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Cited by 8 publications
(3 citation statements)
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“…This suggests that an improvement in the rate of body protein deposition and nitrogen retention efficiency was observed in this study (BOISEN, 2003;TAKISHITA et al, 2009;BOMFIM et al, 2010). Gonçalves et al (2009), highlighted that high levels of digestible lysine supplementation in diets with low protein levels do not provide the same response, highlighting the importance of lysine in balance with other amino acids. Furthermore, the adequate balancing of amino acids in the diet, as well as the use of moderate levels of synthetic amino acids and short feeding intervals can maintain a more stable plasma concentration of amino acids.…”
Section: Resultssupporting
confidence: 55%
“…This suggests that an improvement in the rate of body protein deposition and nitrogen retention efficiency was observed in this study (BOISEN, 2003;TAKISHITA et al, 2009;BOMFIM et al, 2010). Gonçalves et al (2009), highlighted that high levels of digestible lysine supplementation in diets with low protein levels do not provide the same response, highlighting the importance of lysine in balance with other amino acids. Furthermore, the adequate balancing of amino acids in the diet, as well as the use of moderate levels of synthetic amino acids and short feeding intervals can maintain a more stable plasma concentration of amino acids.…”
Section: Resultssupporting
confidence: 55%
“…A lisina está presente em elevada proporção no tecido muscular da tilápia-do-Nilo (Teixeira et al, 2008). A exigência média em lisina da tilápia é de aproximadamente 5,8% da proteína da ração e sua suplementação garante melhorias no ganho de peso, conversão alimentar, melhora a retenção de nitrogênio e redução no conteúdo de lipídios na carcaça (Furuya et al, 2004;Furuya et al, 2006;Gonçalves et al, 2009;Takishita et al, 2009;Bomfim et al, 2010), e a exigência de metionina é de aproximadamente 60% da lisina (Furuya et al, 2001;Bomfim et al, 2008;Quadros et al, 2009). Portanto o perfil destes aminoácidos nos hidrolisados avaliados, destaca-se o HF e HV com maiores valores digestibilidade para a lisina e metionina, embora apresentem menores teores de proteína digestível.…”
Section: Resultsunclassified
“…Cento e cinquenta alevinos foram distribuídos nos aquários e receberam dietas com 0,0; 25,0; 50,0; 75,0 e 100,0% de substituição do milho pelo triticale, correspondendo a 0; 7,5; 15,0; 22,5 e 30%, respectivamente (Tabela 1). As dietas foram isoenergé-ticas e isoproteicas, formuladas com base nos teores de nutrientes e energia digestível dos alimentos e utilizando-se as relações aminoácido:proteína determinadas por Gonçalves et al (2009). A variedade de triticale utilizada foi a BRS 148 (Embrapa) cultivada no Campus da Unesp/ FCA de Botucatu-SP.…”
Section: Methodsunclassified