Xiao Yang

1. IntroductionThe anti-predator behavior of roosting on the elevated structure shown by the ancestor of the domestic fowl (jungle fowl) has been seen in domesticated avian species even after they were reared in the indoor housing system [1,2]. The avian species, including the domestic fowl, exhibit the tendon-locking phenomenon, which allows them to express behaviors such as perching with minimal ...

1. IntroductionThe performance and activities of male breeders (roosters) are critical for egg fertility and hatchability in commercial layer and broiler breeding houses [1,2]. In a study, researchers found positive correlations between rooster body weight and both the laying intensity of fertilized eggs and the hatchability percentage of chicks [2]. A review by Kingor [1] underscores the importan ...