Modelling Broiler Requirements for Lysine and Arginine
Six assays were conducted to investigate male and female broiler responses to standardized ileal digestible (SID) lysine (Lys) and arginine (Arg). Response data were modeled to estimate the efficiency of utilization (<i>k</i>) of both amino acids and adjust factorial models to predict bi...
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MDPI AG
2021-10-01
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| Online Access: | https://www.mdpi.com/2076-2615/11/10/2914 |
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| author | Bernardo Rocha Franco Nogueira Nilva Kazue Sakomura Matheus de Paula Reis Bruno Balbino Leme Marie-Pierre Létourneau-Montminy Gabriel da Silva Viana |
| author_facet | Bernardo Rocha Franco Nogueira Nilva Kazue Sakomura Matheus de Paula Reis Bruno Balbino Leme Marie-Pierre Létourneau-Montminy Gabriel da Silva Viana |
| author_sort | Bernardo Rocha Franco Nogueira |
| collection | DOAJ |
| description | Six assays were conducted to investigate male and female broiler responses to standardized ileal digestible (SID) lysine (Lys) and arginine (Arg). Response data were modeled to estimate the efficiency of utilization (<i>k</i>) of both amino acids and adjust factorial models to predict bird intake for SID Lys and SID Arg. In each assay, 1280 Cobb 500<sup>®</sup> broilers (640 male and 640 female) were randomly assigned to one of sixteen dietary treatments with four replicates of 20 birds. Dietary treatments consisted of crescent levels of SID Lys or SID Arg based on the dilution technique. The values of <i>k</i> determined for each phase (1- to 14-, 15- to 28-, and 29- to 42-d-old) and sex were contrasted using linear regression with groups (sex and phase). The estimated efficiencies were 0.79 for Lys and 0.62 for Arg, which were unaffected by phase or sex. Factorial models based on body weight and weight gain (M1) and on body and feather protein weight and deposition (M2) were applied to estimate the SID Lys and Arg intake for growth. The amino acid intake based on M2 had a lower error of prediction. Broiler chickens require 94.9 and 92.9 mg/d of SID Lys and SID Arg to deposit 1 g of body protein. |
| first_indexed | 2024-03-10T06:46:08Z |
| format | Article |
| id | doaj.art-4ae52176523f4824accea8e60a0a6626 |
| institution | Directory Open Access Journal |
| issn | 2076-2615 |
| language | English |
| last_indexed | 2024-03-10T06:46:08Z |
| publishDate | 2021-10-01 |
| publisher | MDPI AG |
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| series | Animals |
| spelling | doaj.art-4ae52176523f4824accea8e60a0a66262023-11-22T17:11:10ZengMDPI AGAnimals2076-26152021-10-011110291410.3390/ani11102914Modelling Broiler Requirements for Lysine and ArginineBernardo Rocha Franco Nogueira0Nilva Kazue Sakomura1Matheus de Paula Reis2Bruno Balbino Leme3Marie-Pierre Létourneau-Montminy4Gabriel da Silva Viana5Department of Animal Sciences, Faculty of Agrarian and Veterinary Science, São Paulo State University, Jaboticabal 14884-900, São Paulo, BrazilDepartment of Animal Sciences, Faculty of Agrarian and Veterinary Science, São Paulo State University, Jaboticabal 14884-900, São Paulo, BrazilDepartment of Animal Sciences, Faculty of Agrarian and Veterinary Science, São Paulo State University, Jaboticabal 14884-900, São Paulo, BrazilDepartment of Animal Sciences, Faculty of Agrarian and Veterinary Science, São Paulo State University, Jaboticabal 14884-900, São Paulo, BrazilDepartment of Animal Sciences, Université Laval, Québec City, QC G1V 0A6, CanadaProduction Systems, Natural Resources Institute Finland (Luke), 31600 Jokioinen, FinlandSix assays were conducted to investigate male and female broiler responses to standardized ileal digestible (SID) lysine (Lys) and arginine (Arg). Response data were modeled to estimate the efficiency of utilization (<i>k</i>) of both amino acids and adjust factorial models to predict bird intake for SID Lys and SID Arg. In each assay, 1280 Cobb 500<sup>®</sup> broilers (640 male and 640 female) were randomly assigned to one of sixteen dietary treatments with four replicates of 20 birds. Dietary treatments consisted of crescent levels of SID Lys or SID Arg based on the dilution technique. The values of <i>k</i> determined for each phase (1- to 14-, 15- to 28-, and 29- to 42-d-old) and sex were contrasted using linear regression with groups (sex and phase). The estimated efficiencies were 0.79 for Lys and 0.62 for Arg, which were unaffected by phase or sex. Factorial models based on body weight and weight gain (M1) and on body and feather protein weight and deposition (M2) were applied to estimate the SID Lys and Arg intake for growth. The amino acid intake based on M2 had a lower error of prediction. Broiler chickens require 94.9 and 92.9 mg/d of SID Lys and SID Arg to deposit 1 g of body protein.https://www.mdpi.com/2076-2615/11/10/2914amino acidsefficiency of utilizationfactorial approachdilution technique |
| spellingShingle | Bernardo Rocha Franco Nogueira Nilva Kazue Sakomura Matheus de Paula Reis Bruno Balbino Leme Marie-Pierre Létourneau-Montminy Gabriel da Silva Viana Modelling Broiler Requirements for Lysine and Arginine Animals amino acids efficiency of utilization factorial approach dilution technique |
| title | Modelling Broiler Requirements for Lysine and Arginine |
| title_full | Modelling Broiler Requirements for Lysine and Arginine |
| title_fullStr | Modelling Broiler Requirements for Lysine and Arginine |
| title_full_unstemmed | Modelling Broiler Requirements for Lysine and Arginine |
| title_short | Modelling Broiler Requirements for Lysine and Arginine |
| title_sort | modelling broiler requirements for lysine and arginine |
| topic | amino acids efficiency of utilization factorial approach dilution technique |
| url | https://www.mdpi.com/2076-2615/11/10/2914 |
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