Selection for fast early growth rate and feeding and management procedures which support
growth have lead to various welfare problems in modern broiler strains. Problems which are …

Stress describes the bird's defence mechanisms and a stressor is the situation that elicits the
defence response. 2. As the environment can be viewed as a composite of interacting …

1. This study was conducted to determine the effects of heat stress on fearfulness, leucocyte
components, oxidative stress and lipid peroxidation in two commercial broiler strains, Cobb …

The effects of four stocking and water nipple densities on broiler performance and carcass
traits were measured in two trials. The stocking densities of 23.8, 17.9, 14.3, and 11.9 …

This study attempted to evaluate the effect of various housing densities and perch
availability on the immune status of commercial broilers. Birds were raised from hatch to 42 …

Stocking density has critical implications for the broiler industry because higher returns can
be obtained as the number of birds per unit space increases. Assigned densities have been …

The effects of stocking density (STD) on leg weakness in broiler chickens was assessed in
two trials. The interaction between age and STD on leg weakness was further evaluated in …

Although stocking density is perceived as a topic of major importance, no consensus has
been reached on what density would allow for good welfare. In the present study, the …

Farm animals are social species with a strong tendency to form groups. Living in groups has
associated costs and benefits. The costs refer mostly to competition for food, or access to …

This study examined responses of male broilers during a 49-d production cycle to 4
placement densities in 2 trials. Trials were pooled because no treatment× trial interaction …