Behavior of the growth of chicks from the incubation of unfit eggs (deformed and small) of light breeders
Abstract
The research was carried out in a start-up and growth facility of the Poultry Company of Camagüey, Cuba. The birth weight of chicks from deformed (37.37 g) and suitable (32.37 g) eggs does not differ from each other, although they differ (P≤0.05) from chicks from small eggs (30, 94 g). Weeks 1; 3 and 6 do not show differences between the weight of the chicks from the three types of eggs incubated, while in weeks 2; 4; 5; 7 and 8 there were significant differences (P≤0.05) in the body weight of the chicks of the suitable eggs (they are the lowest body weights) with respect to the birds from deformed or suitable eggs, which do not differ from each other. In week 8 the chicks from the incubation of small eggs weighed 3 102.07g, those corresponding to the incubation of the deformed and suitable eggs had body weights of 332.56 and 335.51g, respectively. The regression equation for deformed eggs was: r2 = 0.97; y = 37.54 * x +9.84; for the little ones: r2 = 0.96; y = 36.34 * x +0.04 and for the fit: r2 = 0.92; y = 33.89 * x +17.47. The behavior of the chicks from week 16 indicates that there are no differences in body weight for any of the three types of chicks, and where the regression equations for the deformed were: r2 = 0.92; y = 33.89 * x +17.47; for the little ones: r2 = 0.96; y = 57.33 x -144.8 y for the fit: r2 = 0.97; y = 57.3 x -130.6.
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