Optimum Digestible Valine to Lysine Ratio for Meat-Type Quails from 15 to 35 Days of Age

ABSTRACT This study was conducted to estimate the dig. valine to lysine (Val:Lys) ideal ratio for meat-type quails from 15 to 35 d of age. A total of 385, 15-day-old not sexed quails, were randomly assigned to five treatments, each one seven times replicated with eleven quails per experimental unit. Experimental treatments consisted of five dig. Val:Lys ratios (0.65; 0.70; 0.75; 0.80 and 0.85). Ideal dig. Val:Lys ratio was estimated using polynomial regression and linear broken-line regression model. Significant effect was considered when p≤0.05. Feed conversion ratio was not affected by dig. Val:Lys ratios in any of the assessed phases. From 15 to 21 d of age Val:Lys ratios increased linearly feed intake, weight gain and body weight. From 15 to 28 d of age, weight gain and body weight were both optimized by the Val:Lys ratio of 0.77. A linear effect of dig. Val:Lys ratios was observed on weight gain and final body weight from 15 to 35 d of age. From 15 to 35 d of age, according to linear broken-line regression model, the dig. Val:Lys ideal ratios for optimum final body weight and weight gain were 0.77 and 0.76, respectively. Based on the results the estimated dig. Val:Lys ratio for optimum meat-type quail performance from 15 to 35 d of age is 0.77

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Main Authors: Alves,WJ, Viana,GS, Barreto,SLT, Muniz,JCL, Hannas,MI, Silva,AD, Arnaut,PR, Barros,VRMS
Format: Digital revista
Language:English
Published: Fundacao de Apoio a Ciência e Tecnologia Avicolas 2017
Online Access:http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2017000200185
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spelling oai:scielo:S1516-635X20170002001852017-08-07Optimum Digestible Valine to Lysine Ratio for Meat-Type Quails from 15 to 35 Days of AgeAlves,WJViana,GSBarreto,SLTMuniz,JCLHannas,MISilva,ADArnaut,PRBarros,VRMS Branched-chain amino acids Coturnix coturnix coturnix digestible amino acids. ABSTRACT This study was conducted to estimate the dig. valine to lysine (Val:Lys) ideal ratio for meat-type quails from 15 to 35 d of age. A total of 385, 15-day-old not sexed quails, were randomly assigned to five treatments, each one seven times replicated with eleven quails per experimental unit. Experimental treatments consisted of five dig. Val:Lys ratios (0.65; 0.70; 0.75; 0.80 and 0.85). Ideal dig. Val:Lys ratio was estimated using polynomial regression and linear broken-line regression model. Significant effect was considered when p≤0.05. Feed conversion ratio was not affected by dig. Val:Lys ratios in any of the assessed phases. From 15 to 21 d of age Val:Lys ratios increased linearly feed intake, weight gain and body weight. From 15 to 28 d of age, weight gain and body weight were both optimized by the Val:Lys ratio of 0.77. A linear effect of dig. Val:Lys ratios was observed on weight gain and final body weight from 15 to 35 d of age. From 15 to 35 d of age, according to linear broken-line regression model, the dig. Val:Lys ideal ratios for optimum final body weight and weight gain were 0.77 and 0.76, respectively. Based on the results the estimated dig. Val:Lys ratio for optimum meat-type quail performance from 15 to 35 d of age is 0.77info:eu-repo/semantics/openAccessFundacao de Apoio a Ciência e Tecnologia AvicolasBrazilian Journal of Poultry Science v.19 n.2 20172017-06-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2017000200185en10.1590/1806-9061-2016-0276
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libraryname SciELO
language English
format Digital
author Alves,WJ
Viana,GS
Barreto,SLT
Muniz,JCL
Hannas,MI
Silva,AD
Arnaut,PR
Barros,VRMS
spellingShingle Alves,WJ
Viana,GS
Barreto,SLT
Muniz,JCL
Hannas,MI
Silva,AD
Arnaut,PR
Barros,VRMS
Optimum Digestible Valine to Lysine Ratio for Meat-Type Quails from 15 to 35 Days of Age
author_facet Alves,WJ
Viana,GS
Barreto,SLT
Muniz,JCL
Hannas,MI
Silva,AD
Arnaut,PR
Barros,VRMS
author_sort Alves,WJ
title Optimum Digestible Valine to Lysine Ratio for Meat-Type Quails from 15 to 35 Days of Age
title_short Optimum Digestible Valine to Lysine Ratio for Meat-Type Quails from 15 to 35 Days of Age
title_full Optimum Digestible Valine to Lysine Ratio for Meat-Type Quails from 15 to 35 Days of Age
title_fullStr Optimum Digestible Valine to Lysine Ratio for Meat-Type Quails from 15 to 35 Days of Age
title_full_unstemmed Optimum Digestible Valine to Lysine Ratio for Meat-Type Quails from 15 to 35 Days of Age
title_sort optimum digestible valine to lysine ratio for meat-type quails from 15 to 35 days of age
description ABSTRACT This study was conducted to estimate the dig. valine to lysine (Val:Lys) ideal ratio for meat-type quails from 15 to 35 d of age. A total of 385, 15-day-old not sexed quails, were randomly assigned to five treatments, each one seven times replicated with eleven quails per experimental unit. Experimental treatments consisted of five dig. Val:Lys ratios (0.65; 0.70; 0.75; 0.80 and 0.85). Ideal dig. Val:Lys ratio was estimated using polynomial regression and linear broken-line regression model. Significant effect was considered when p≤0.05. Feed conversion ratio was not affected by dig. Val:Lys ratios in any of the assessed phases. From 15 to 21 d of age Val:Lys ratios increased linearly feed intake, weight gain and body weight. From 15 to 28 d of age, weight gain and body weight were both optimized by the Val:Lys ratio of 0.77. A linear effect of dig. Val:Lys ratios was observed on weight gain and final body weight from 15 to 35 d of age. From 15 to 35 d of age, according to linear broken-line regression model, the dig. Val:Lys ideal ratios for optimum final body weight and weight gain were 0.77 and 0.76, respectively. Based on the results the estimated dig. Val:Lys ratio for optimum meat-type quail performance from 15 to 35 d of age is 0.77
publisher Fundacao de Apoio a Ciência e Tecnologia Avicolas
publishDate 2017
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2017000200185
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