CINEMATIC STUDY OF TURKEYS WALK - RESEARC H OF A FUNCTIONAL EXPLANATION OF BROAD-BREASTED TURKEYS LOCOMOTOR DISEASES FREQUENCY

The aim of this study of the cinematic of locomotion is turkeys is to determinate if broad-breasted turkey's locomotor diseases frequency ma y have a functional origin. Angular variations of hind limbs segments of light and broad-breasted strains of turkeys are graphically analyze d and compared. In a parasagittal plane, movements amplitude of the di stal part of the limbs are slightly reduce in broad-breasted turkeys. On the frontal plane, lateral movements are stressed. A mechanical int erpretation suggests that movements modifications involve an increase of energetic cost of locomotion and may be link to locomotor diseases frequency.