Dynamics of Growth and Egg Traits in Three Dietary Balanced Protein Scenarios Applied for Laying Hens
The objective of this study was to evaluate laying hens from 8 to 102 weeks old, regarding their changes in performance, body composition, and egg components produced in three scenarios of nutrition. Three treatments designed to contain different levels of balanced protein (BP) were randomly assigne...
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MDPI AG
2022-05-01
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| Series: | Animals |
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| Online Access: | https://www.mdpi.com/2076-2615/12/11/1371 |
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| author | Ingryd Palloma Teodósio Da Nóbrega Matheus de Paula Reis Freddy Alexander Horna Morillo Luis Filipe Villas-Bôas De Freitas Letícia Cardoso Bittencourt João Batista Kochenborger Fernandes Nilva Kazue Sakomura |
| author_facet | Ingryd Palloma Teodósio Da Nóbrega Matheus de Paula Reis Freddy Alexander Horna Morillo Luis Filipe Villas-Bôas De Freitas Letícia Cardoso Bittencourt João Batista Kochenborger Fernandes Nilva Kazue Sakomura |
| author_sort | Ingryd Palloma Teodósio Da Nóbrega |
| collection | DOAJ |
| description | The objective of this study was to evaluate laying hens from 8 to 102 weeks old, regarding their changes in performance, body composition, and egg components produced in three scenarios of nutrition. Three treatments designed to contain different levels of balanced protein (BP) were randomly assigned to the experimental units, performing ten replicates per treatment with 20 birds each. A standard feed was formulated to meet hen requirements and the ideal ratio between essential amino acids. Then, two experimental feeds were formulated to contain 20% above or below the dietary BP used in the standard feed. The responses evaluated were cumulated feed intake (g), daily feed intake (g/day), body weight (g), body composition (g of protein, fat, and ash), hen-housed egg production (%/hen-housed), egg production (%), egg weight (g), egg mass (g), and egg components (percentages of yolk, albumen, and eggshell). The dietary BP influenced the body composition, egg production, egg weight, and egg mass of white laying hens. The increase in dietary BP was related to an increase in body contents and egg weight, whereas hens consuming the low dietary balanced protein presented a lower body weight, leaner, and produced smaller eggs. |
| first_indexed | 2024-03-10T01:33:28Z |
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| institution | Directory Open Access Journal |
| issn | 2076-2615 |
| language | English |
| last_indexed | 2024-03-10T01:33:28Z |
| publishDate | 2022-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Animals |
| spelling | doaj.art-4b25212ac6af4db6baf9aac7a546f5b12023-11-23T13:37:18ZengMDPI AGAnimals2076-26152022-05-011211137110.3390/ani12111371Dynamics of Growth and Egg Traits in Three Dietary Balanced Protein Scenarios Applied for Laying HensIngryd Palloma Teodósio Da Nóbrega0Matheus de Paula Reis1Freddy Alexander Horna Morillo2Luis Filipe Villas-Bôas De Freitas3Letícia Cardoso Bittencourt4João Batista Kochenborger Fernandes5Nilva Kazue Sakomura6Department of Animal Sciences, Faculty of Agrarian and Veterinary Science, São Paulo State University, Jaboticabal 14884-900, SP, BrazilDepartment of Animal Sciences, Faculty of Agrarian and Veterinary Science, São Paulo State University, Jaboticabal 14884-900, SP, BrazilDepartment of Animal Sciences, Faculty of Agrarian and Veterinary Science, São Paulo State University, Jaboticabal 14884-900, SP, BrazilDepartment of Animal Sciences, Faculty of Agrarian and Veterinary Science, São Paulo State University, Jaboticabal 14884-900, SP, BrazilDSM Brazil, Mairinque 18120-000, SP, BrazilDepartment of Animal Sciences, Faculty of Agrarian and Veterinary Science, São Paulo State University, Jaboticabal 14884-900, SP, BrazilDepartment of Animal Sciences, Faculty of Agrarian and Veterinary Science, São Paulo State University, Jaboticabal 14884-900, SP, BrazilThe objective of this study was to evaluate laying hens from 8 to 102 weeks old, regarding their changes in performance, body composition, and egg components produced in three scenarios of nutrition. Three treatments designed to contain different levels of balanced protein (BP) were randomly assigned to the experimental units, performing ten replicates per treatment with 20 birds each. A standard feed was formulated to meet hen requirements and the ideal ratio between essential amino acids. Then, two experimental feeds were formulated to contain 20% above or below the dietary BP used in the standard feed. The responses evaluated were cumulated feed intake (g), daily feed intake (g/day), body weight (g), body composition (g of protein, fat, and ash), hen-housed egg production (%/hen-housed), egg production (%), egg weight (g), egg mass (g), and egg components (percentages of yolk, albumen, and eggshell). The dietary BP influenced the body composition, egg production, egg weight, and egg mass of white laying hens. The increase in dietary BP was related to an increase in body contents and egg weight, whereas hens consuming the low dietary balanced protein presented a lower body weight, leaner, and produced smaller eggs.https://www.mdpi.com/2076-2615/12/11/1371essential amino acidbody componentseggpoultry |
| spellingShingle | Ingryd Palloma Teodósio Da Nóbrega Matheus de Paula Reis Freddy Alexander Horna Morillo Luis Filipe Villas-Bôas De Freitas Letícia Cardoso Bittencourt João Batista Kochenborger Fernandes Nilva Kazue Sakomura Dynamics of Growth and Egg Traits in Three Dietary Balanced Protein Scenarios Applied for Laying Hens Animals essential amino acid body components egg poultry |
| title | Dynamics of Growth and Egg Traits in Three Dietary Balanced Protein Scenarios Applied for Laying Hens |
| title_full | Dynamics of Growth and Egg Traits in Three Dietary Balanced Protein Scenarios Applied for Laying Hens |
| title_fullStr | Dynamics of Growth and Egg Traits in Three Dietary Balanced Protein Scenarios Applied for Laying Hens |
| title_full_unstemmed | Dynamics of Growth and Egg Traits in Three Dietary Balanced Protein Scenarios Applied for Laying Hens |
| title_short | Dynamics of Growth and Egg Traits in Three Dietary Balanced Protein Scenarios Applied for Laying Hens |
| title_sort | dynamics of growth and egg traits in three dietary balanced protein scenarios applied for laying hens |
| topic | essential amino acid body components egg poultry |
| url | https://www.mdpi.com/2076-2615/12/11/1371 |
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