Alteraciones biológicas del huevo fértil sobre los parámetros de incubación y el rendimiento productivo en pollos cobb 500

The objective of this research was to evaluate the biological alterations of the fertile egg on the incubation parameters and the quality of the COBB 500 chicken. A DBCA was implemented, with a distribution of 3960 eggs in three treatments according to the following characteristics: ovoid eggs of brown shell (T0), rounded eggs (T1) and white eggs (T2). Incubation parameters were measured: percentage of fertility (%), percentage of infertility (%), percentage of embryonic death (%), percentage of first chicks (%), percentage of hatchability (%), weight of yolk sac up to five days (g) and weight of chicken COBB 500 (g). Statistical differences were obtained (p <0.05) where T0 was highlighted for fertility variables (84.17 ± 1.07); first chicks (84.17 ± 1.50); hatchability (67.65 ± 1.29) and T1 in embryonic death (7.73 ± 0.64); On the other hand, there was no statistical difference (p> 0.05) in the infertility variables (6.21 ± 0.43), weight of the yolk sac (5.70 ± 0.68) and chicken weight at birth ( 47.01 ± 0.78) in which the T1 was highlighted. Regarding microbial quality, microbiological tests determined the existence of Mycoplasma gallisepticum in chickens born from all treatments. From the benefit / cost ratio, there was a greater gain in Q0 with $ 203.01 USD. It is concluded that the morphology of the eggs did not disadvantage the birth weight of BB chicks and the productive yield in Cobb 500 chickens.

• Auteur principal: Herrera Cedeño, Antonio Alejandro (author)
• Format: bachelorThesis
• Langue: spa
• Publié: 2019
• Sujets: Aves; Factibilidad económica; Variables productivas; Pesos de pollitos BB
• Accès en ligne: http://repositorio.espam.edu.ec/handle/42000/1157