Características físicas do sêmen de galos de matriz pesada com 35 e 68 semanas de idade

Rocha Júnior, J.M.Baião, N.C.

Sixty male broiler breeders (ISA-MPK breed) 50 at their final reproductive life (68 week-old), and 10 at the pick of production (35 week-old), from six different flocks (10 males/flock) were used to evaluate the effect of age on the motility, vigor and mass motility under normal management field conditions. A non-parametric test was applied and no differences were observed between ages for the analyzed traits. The regression analysis showed a significant effect of testicle weight on semen quality only for birds at 35weeks of age.

1. peso dos testículos
2. semen quality
3. qualidade do sêmen
4. testicle weights
5. Galo
6. Male broiler breeder