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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Fundacao de Apoio a Ciência e Tecnologia Avicolas
2017
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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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Alves,WJ Viana,GS Barreto,SLT Muniz,JCL Hannas,MI Silva,AD Arnaut,PR Barros,VRMS |
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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 |
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Fundacao de Apoio a Ciência e Tecnologia Avicolas |
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2017 |
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http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2017000200185 |
work_keys_str_mv |
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