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Prediction of Egg Weight from External Egg Traits of Guinea Fowl Using Multiple Linear Regression and Regression Tree Methods
Portillo-Salgado, R; Cigarroa-Vázquez, F. A; Ruiz-Sesma, B; Mendoza-Nazar, P; Hernández-Marín, A; Esponda-Hernández, W; Bautista-Ortega, J.
Affiliation
  • Portillo-Salgado, R; Colegio de Postgraduados. Texcoco. MX
  • Cigarroa-Vázquez, F. A; Universidad Autónoma de Chiapas. Escuela de Estudios Agropecuarios Mezcalapa. Chiapas. MX
  • Ruiz-Sesma, B; Universidad Autónoma de Chiapas. Facultad de Medicina Veterinaria y Zootecnia. Chiapas. MX
  • Mendoza-Nazar, P; Universidad Autónoma de Chiapas. Facultad de Medicina Veterinaria y Zootecnia. Chiapas. MX
  • Hernández-Marín, A; Universidad de Guanajuato. Departamento de Veterinaria y Zootecnia. Guanajuato. MX
  • Esponda-Hernández, W; Universidad Autónoma de Chiapas. Escuela de Estudios Agropecuarios Mezcalapa. Chiapas. MX
  • Bautista-Ortega, J; Colegio de Postgraduados. Campeche. MX
Rev. bras. ciênc. avic ; 23(3): eRBCA, 2021. tab, graf
Article in En | VETINDEX | ID: biblio-1490870
Responsible library: BR68.1
Localization: BR68.1
ABSTRACT
The study was done to predict egg weight from the external traits of the Guinea fowl egg using the statistical methods of multiple linear regression (MLR) and regression tree analysis (RTA). A total of 110 eggs from a flock of 23-week-old Guinea fowl were evaluated. Egg weight (EW) and external traits eggshell weight (ESW), egg polar diameter (EPD), egg equatorial diameter (EED), egg shape index (ESI), and egg surface area (ESA) were measured. Descriptive statistics, Pearson correlation coefficients, and regression equations using the MLR were obtained; additionally, a RTA was done using the CHAID algorithm with the SPSS software (IBM ver. 22). EW presented positive correlations (p 59.03 cm2 and a polar diameter > 5.10 cm. The proposed statistical methods can be used to reliably predict the egg weight of Guinea fowl.
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Full text: 1 Database: VETINDEX Main subject: Ovum / Linear Models / Chickens / Eggs Limits: Animals Language: En Journal: Rev. bras. ciênc. avic Year: 2021 Document type: Article

Full text: 1 Database: VETINDEX Main subject: Ovum / Linear Models / Chickens / Eggs Limits: Animals Language: En Journal: Rev. bras. ciênc. avic Year: 2021 Document type: Article