Advances in Animal and Veterinary Sciences

Research Article
Adv. Anim. Vet. Sci. 9(2): 215-220
Http://dx.doi.org/10.17582/journal.aavs/2021/9.2.215.220
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Simushi Liswaniso1,2,3, Ning Qin1,2,Thobela Louis Tyasi4, Ignatius Musenge Chimbaka1,2, Xue Sun1,2, Rifu Xu1,2*

1College of Animal Science and Technology, Jilin Agricultural University, Changchun 130118, China; 2Joint Laboratory of Modern Agricultural Technology International Cooperation, Ministry of Education, Jilin Agricultural University, Changchun 130118, China; 3Department of Livestock Development, Mulungushi House. Lusaka. The Republic of Zambia; 4Department of Agricultural Economics and Animal Production, University of Limpopo, Polokwane. Limpopo Province, South Africa.

Abstract | This study aimed to evaluate the performance of data mining algorithms Chi-square Automatic Interaction Detector (CHAID) and Classification And Regression Tree (CART) in predicting egg weight from different egg quality traits such as egg length (EL), egg width (EW), shell weight (SW), shell thickness (ST), albumen weight (AW), yolk height (YH), yolk width (YD) and yolk weight (YW). To attain this, 364 indigenous free-range chicken eggs were employed. The goodness of fit test was done to compare the predictive performance of these algorithms. Pearson correlation coefficient between the egg weight and the predicted egg weights was found to be 0.907 (P < 0.01) for the CHAID algorithm. Coefficient of determination (R2), Adjusted R2 (Adj-R2), Root Mean Square Error (RMSE), Relative approximation error (RAE), standard deviation ratio (SD ratio) for the CHAID algorithm were estimated to be 0.823, 0.823, 2.23, 0.04, and 0.23 correspondingly. Pearson correlation coefficient between the egg weight and the predicted egg weights was found to be 0.771 (P < 0.01) for the CART algorithm. The R2, Adj-R2, RMSE, RAE, SD ratio for the CART algorithm were estimated to be 0.593, 0.593, 2.32, 0.07, and 0.24 correspondingly. Given its stronger prediction accuracy (R2), lower values of RMSE, and RAE, the CHAID algorithm can be recommended for analysis of egg quality traits of free-range indigenous chickens.

Keywords | Egg weight, Egg quality traits, Indigenous free-range chickens