Digestible lysine levels for brown layers

Digestible lysine levels for brown layers

This study was carried out to evaluate the effects of different digestible dietary lysine levels on performance and egg quality characteristics, from 25 to 41 weeks of age. One hundred twenty Hy-Line Brown layers were randomly distributed in five treatments with six replications of four birds each, totaling 30 experimental units. Experimental diets were based on corn and soybean meal, were isocaloric and isonutrient, with differences only in lysine levels (0.70, 0.75, 0.80, 0.85, and 0.90%). The study evaluated feed intake, lysine intake, energy consumption, egg production, egg weight, egg mass, and feed conversion. Internal egg quality was evaluated by Haugh unit, the percentages of yolk and albumen percentage, while external quality was measured by specific gravity, eggshell thickness and shell percentage. It was concluded that the level of 0.70% of digestible lysine or the intake of 708 mg bird-1 day-1 for Hy-Line Brown layers from 25 to 41 weeks of age can be enough to express the genetic potential.

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Main Authors: Souza,Henrique Rosa Baltazar de, Faria,Douglas Emygdio de, Caetano,Vinícius Camargo, Santos,Andréa Luciana dos, Araújo,Raquel Bighetti, Sakamoto,Márcia Izumi
Format: Digital revista
Language:English
Published: Editora da Universidade Estadual de Maringá - EDUEM 2014
Online Access:http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1807-86722014000400005
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spelling oai:scielo:S1807-867220140004000052014-10-14Digestible lysine levels for brown layersSouza,Henrique Rosa Baltazar deFaria,Douglas Emygdio deCaetano,Vinícius CamargoSantos,Andréa Luciana dosAraújo,Raquel BighettiSakamoto,Márcia Izumi digestible amino acids egg quality performance This study was carried out to evaluate the effects of different digestible dietary lysine levels on performance and egg quality characteristics, from 25 to 41 weeks of age. One hundred twenty Hy-Line Brown layers were randomly distributed in five treatments with six replications of four birds each, totaling 30 experimental units. Experimental diets were based on corn and soybean meal, were isocaloric and isonutrient, with differences only in lysine levels (0.70, 0.75, 0.80, 0.85, and 0.90%). The study evaluated feed intake, lysine intake, energy consumption, egg production, egg weight, egg mass, and feed conversion. Internal egg quality was evaluated by Haugh unit, the percentages of yolk and albumen percentage, while external quality was measured by specific gravity, eggshell thickness and shell percentage. It was concluded that the level of 0.70% of digestible lysine or the intake of 708 mg bird-1 day-1 for Hy-Line Brown layers from 25 to 41 weeks of age can be enough to express the genetic potential.info:eu-repo/semantics/openAccessEditora da Universidade Estadual de Maringá - EDUEMActa Scientiarum. Animal Sciences v.36 n.4 20142014-12-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1807-86722014000400005en10.1590/S1807-86722014000400005
institution SCIELO
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country Brasil
countrycode BR
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region America del Sur
libraryname SciELO
language English
format Digital
author Souza,Henrique Rosa Baltazar de
Faria,Douglas Emygdio de
Caetano,Vinícius Camargo
Santos,Andréa Luciana dos
Araújo,Raquel Bighetti
Sakamoto,Márcia Izumi
spellingShingle Souza,Henrique Rosa Baltazar de
Faria,Douglas Emygdio de
Caetano,Vinícius Camargo
Santos,Andréa Luciana dos
Araújo,Raquel Bighetti
Sakamoto,Márcia Izumi
Digestible lysine levels for brown layers
author_facet Souza,Henrique Rosa Baltazar de
Faria,Douglas Emygdio de
Caetano,Vinícius Camargo
Santos,Andréa Luciana dos
Araújo,Raquel Bighetti
Sakamoto,Márcia Izumi
author_sort Souza,Henrique Rosa Baltazar de
title Digestible lysine levels for brown layers
title_short Digestible lysine levels for brown layers
title_full Digestible lysine levels for brown layers
title_fullStr Digestible lysine levels for brown layers
title_full_unstemmed Digestible lysine levels for brown layers
title_sort digestible lysine levels for brown layers
description This study was carried out to evaluate the effects of different digestible dietary lysine levels on performance and egg quality characteristics, from 25 to 41 weeks of age. One hundred twenty Hy-Line Brown layers were randomly distributed in five treatments with six replications of four birds each, totaling 30 experimental units. Experimental diets were based on corn and soybean meal, were isocaloric and isonutrient, with differences only in lysine levels (0.70, 0.75, 0.80, 0.85, and 0.90%). The study evaluated feed intake, lysine intake, energy consumption, egg production, egg weight, egg mass, and feed conversion. Internal egg quality was evaluated by Haugh unit, the percentages of yolk and albumen percentage, while external quality was measured by specific gravity, eggshell thickness and shell percentage. It was concluded that the level of 0.70% of digestible lysine or the intake of 708 mg bird-1 day-1 for Hy-Line Brown layers from 25 to 41 weeks of age can be enough to express the genetic potential.
publisher Editora da Universidade Estadual de Maringá - EDUEM
publishDate 2014
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1807-86722014000400005
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