Modeling and optimization of essential amino acids effects on productive performance in second-cycle hens

3rd International Congress of Mechanical Engineering and Agricultural Science

机械制造;农业科学

Morales, W.^1 ; Ospina, I.C.^2 ; Méndez, J.J.^1 ; Váquiro, H.A.^1

Universidad Del Tolima, Barrio Santa Helena Parte Alta, A.A. 546, Ibagué

CP 730006299, Colombia^1

Universidade Estadual de Maringá, Av. Colombo 5790, Maringá, PR

87020-900, Brazil^2

关键词: Egg production;    Essential amino acids;    Five levels;    Gompertz equations;    Model-based OPC;    Modeling and optimization;    Performance Model;    Production phasis;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/437/1/012010/pdf
DOI  :  10.1088/1757-899X/437/1/012010

学科分类：农业科学（综合）

来源: IOP

【 摘 要 】

In this study, a model based on a modification of the Gompertz equation was used to estimate the maximum percentage of egg production and digestible requirements of lysine (Lys), methionine + cystine (Met + Cys) and threonine (Thr) of H&N brown laying hens during 16 weeks of production. The productive performance model was adjusted to field data of 23 treatments, which were defined from a composite central design that combines five levels of Lys, Met + Cys, and Thr ranged from 0.636% up to 1.000%; 0.579% up to 0.910%; 0.483% up to 0.760%, respectively. The proposed model showed to be adequate to evaluate the efficiency in the use of digestible amino acids for egg production and can be a useful tool to diagnose the effectiveness of the nutritional requirements in each of the production phases.