<b>Digestible lysine levels for laying hens and their effects on egg quality</b>
Egg quality of semi-heavy laying hens fed on low protein diets (14.0% CP) and on different lysine levels is evaluated, while maintaining the same ratio of digestible amino acids / digestible lysine. Four hundred and twenty commercial strain Isa Brown laying hens, 28 weeks old, were divided into 42 e...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Editora da Universidade Estadual de Maringá (Eduem)
2014-03-01
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| Series: | Acta Scientiarum: Animal Sciences |
| Subjects: | |
| Online Access: | https://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/21823 |
| _version_ | 1818281496543232000 |
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| author | Tiago Antônio dos Santos Adriano Geraldo Luiz Carlos Machado Kléber Pelícia Sérgio Domingos Simão Javer Alves Vieira Filho |
| author_facet | Tiago Antônio dos Santos Adriano Geraldo Luiz Carlos Machado Kléber Pelícia Sérgio Domingos Simão Javer Alves Vieira Filho |
| author_sort | Tiago Antônio dos Santos |
| collection | DOAJ |
| description | Egg quality of semi-heavy laying hens fed on low protein diets (14.0% CP) and on different lysine levels is evaluated, while maintaining the same ratio of digestible amino acids / digestible lysine. Four hundred and twenty commercial strain Isa Brown laying hens, 28 weeks old, were divided into 42 experimental plots. A completely randomized design with six treatments and seven replicates was employed in four production cycles of 28 days each. Treatments comprised Control - 16.92% CP; 0.750% digestible lysine. Treatments 1 to 5, with CP levels 14% and digestible lysine levels 0.600, 0.675, 0.750, 0.825 and 0.900% respectively. Levels of Treatments 1 and 2 (0.546 and 0.640% digestible Met + Cys / 0.600 and 0.675% digestible lysine) provided smaller egg size. On the other hand, eggs had higher shell percentage when compared to control diet. When compared to other digestible amino acids, digestible lysine requirement may be estimated at 0.750% in a diet with 14% CP, which corresponds to the average daily intake of 876 mg dig. lysine hen-1 day-1 and 798 mg dig. Met + Cys hen-1 day-1, without jeopardizing performance and eggs’ internal and external quality.
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| first_indexed | 2024-12-13T00:06:03Z |
| format | Article |
| id | doaj.art-6ab748df1b6e49f08d5f0a6f4c2581e7 |
| institution | Directory Open Access Journal |
| issn | 1806-2636 1807-8672 |
| language | English |
| last_indexed | 2024-12-13T00:06:03Z |
| publishDate | 2014-03-01 |
| publisher | Editora da Universidade Estadual de Maringá (Eduem) |
| record_format | Article |
| series | Acta Scientiarum: Animal Sciences |
| spelling | doaj.art-6ab748df1b6e49f08d5f0a6f4c2581e72022-12-22T00:06:14ZengEditora da Universidade Estadual de Maringá (Eduem)Acta Scientiarum: Animal Sciences1806-26361807-86722014-03-0136110.4025/actascianimsci.v36i1.21823<b>Digestible lysine levels for laying hens and their effects on egg quality</b>Tiago Antônio dos Santos0Adriano Geraldo1Luiz Carlos Machado2Kléber Pelícia3Sérgio Domingos Simão4Javer Alves Vieira Filho5Instituto Federal de Educação Ciência e Tecnologia de Minas Gerais,Instituto Federal de Educação Ciência e Tecnologia de Minas GeraisInstituto Federal de Educação Ciência e Tecnologia de Minas GeraisUniversidade José do Rosário VellanoInstituto Federal de Educação Ciência e Tecnologia de Minas GeraisUniversidade Estadual PaulistaEgg quality of semi-heavy laying hens fed on low protein diets (14.0% CP) and on different lysine levels is evaluated, while maintaining the same ratio of digestible amino acids / digestible lysine. Four hundred and twenty commercial strain Isa Brown laying hens, 28 weeks old, were divided into 42 experimental plots. A completely randomized design with six treatments and seven replicates was employed in four production cycles of 28 days each. Treatments comprised Control - 16.92% CP; 0.750% digestible lysine. Treatments 1 to 5, with CP levels 14% and digestible lysine levels 0.600, 0.675, 0.750, 0.825 and 0.900% respectively. Levels of Treatments 1 and 2 (0.546 and 0.640% digestible Met + Cys / 0.600 and 0.675% digestible lysine) provided smaller egg size. On the other hand, eggs had higher shell percentage when compared to control diet. When compared to other digestible amino acids, digestible lysine requirement may be estimated at 0.750% in a diet with 14% CP, which corresponds to the average daily intake of 876 mg dig. lysine hen-1 day-1 and 798 mg dig. Met + Cys hen-1 day-1, without jeopardizing performance and eggs’ internal and external quality. https://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/21823ideal proteindigestible amino acidsIsa Brownrequirementdiet |
| spellingShingle | Tiago Antônio dos Santos Adriano Geraldo Luiz Carlos Machado Kléber Pelícia Sérgio Domingos Simão Javer Alves Vieira Filho <b>Digestible lysine levels for laying hens and their effects on egg quality</b> Acta Scientiarum: Animal Sciences ideal protein digestible amino acids Isa Brown requirement diet |
| title | <b>Digestible lysine levels for laying hens and their effects on egg quality</b> |
| title_full | <b>Digestible lysine levels for laying hens and their effects on egg quality</b> |
| title_fullStr | <b>Digestible lysine levels for laying hens and their effects on egg quality</b> |
| title_full_unstemmed | <b>Digestible lysine levels for laying hens and their effects on egg quality</b> |
| title_short | <b>Digestible lysine levels for laying hens and their effects on egg quality</b> |
| title_sort | b digestible lysine levels for laying hens and their effects on egg quality b |
| topic | ideal protein digestible amino acids Isa Brown requirement diet |
| url | https://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/21823 |
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