Características ósseas de frangos de corte suplementados com diferentes níveis de vitamina D

Abstract

The vitamin D develops an important function on the development of the bone tissue in broilers, been responsable to the minerals deposition to build the bones as calcium for example. The experiment was composed by three treatment, with the objective of: 1 - Evaluate the bone formation in broilers with diferentes levels of vitamin D. 2 - Evaluate the results of differents levels of vitamin D in relationship to the performance parameters and in relationship to the occurrence of angular changes of the paws like varus and valgus, evaluation of locomotion skills through gait score, and to evaluate the presence or not of pododermatitis. 3 - Evaluate the carcass yield and its parts among the treatments of the survey. To these purposes, It was used 1296 chicks of a day old, males and females, from line Cobb® 500, distributed in a completely randomized design, considering three levels and two sexs. Constitutes six treatments, three by males and three by females (3500 UI of vitamin D, 3500 UI de vitamina D + 1954 UI de 25-hidroxicolecalciferol e 7000 UI of vitamin D), with four replications each. The results obtained showed don’t have difference (p>0.50) to the performance’s variable, carcass yield (exception to gut yield and liver yield), to the bone formation and walking abilities of the broilers, comparing the different levels of vitamin D studied.