slugReducing pre-slaughter losses of broilers: crating density effects under different lairage periods at slaughterhouse
Journal Title: Journal of Animal Behaviour and Biometeorology - Year 2013, Vol 1, Issue 1
Abstract
The aim of this work was to assess the effects of densities per crate on mortality rates of broilers during preslaughter operations, under different lairage time intervals. Pre-slaughter data from 13,937 broiler flocks were recorded daily during 2006, in a commercial slaughterhouse in southeastern Brazil. The main factors which influenced mortality rates were assessed, such as density per crate, daily periods and lairage time in an environmental controlled lairage. For densities above seven birds per crate, an increase in mortality rates was verified mainly in the warm periods. During the night period, the highest incidence of death losses was noticed when the density was below six birds. Considered a controlled environment, the desirable lairage time for death reduction before arrival at the slaughterhouse was above three hours for higher densities and below one hour for densities below seven birds per crate.
Authors and Affiliations
Frederico Márcio Corrêa Vieira, Iran José Oliveira Silva, José Antonio Delfino Barbosa Filho, Afrânio Márcio Corrêa Vieira
Keywords
Related Articles
- EP ID EP17855
- DOI http://dx.doi.org/10.14269/2318-1265.v01n01a01
- Views 585
- Downloads 24
slugPhysiological responses of crossbred boer goats finished in native pasture in the semiarid
In this study, it was evaluated physiological responses of crossbred Boer goats finished in native pasture. The experiment was carried out at experimental farm of Federal University of Campina Grande (UFCG), Patos, P...
slugBehavior of pigs in the growth phase raised in an enriched environment
In this study we aimed to evaluate the behavior of pigs raised in an enriched environment. 12 male piglets, hybrids between 35 and 105 days of age were used. We assessed the behavioral variables: sleeping, standing, l...
slugManual of good practices for welfare: a proposal for dairy cattle on pasture in Brazil
Debate on ethics in animal production started in 1960s. Since that time, discussion on animal welfare (AW) has taken large proportions, where laws and specific rules were created in some countries. Also, this issue ha...
slugAdaptability of sheep and strategies to minimize the effects of climate in tropical regions
The ability to adapt to a particular region is of great importance when it comes to animal production, since the interaction between animals and the environment should be taken into consideration when you want to have...
slugFeeding frequencies and their effect on behavior of nursing sows
An experiment to relate behavior activities with reference to feeding was carried on 16 lactating sows and their litters after one week of farrowing. Two types of diets were fed to the sows. The control group (C) anim...