Leg Weaknesses and Lameness Assessment Methods in Broiler Chickens
نویسندگان
چکیده
منابع مشابه
Leg Weakness Pathology in Broiler Chickens
The aim of the present work is to make a review on the literature concerning the incidence of some major pathologies of leg skeleton in broiler chickens and broiler breeders, related to poor animal welfare. On the basis of data on the incidence of leg skeletal pathology published by us and by other researchers, this review goes through some reports on femoral head necrosis (FHN), tibial dyschon...
متن کاملThe behaviour of broiler chickens and its modification by lameness.
The behaviour of six replicates of broilers obtained from commercial farms, fed ad-libitum and housed on 23-h light:1-h dark schedule at 20 lx was observed using scan sampling. Comparisons were made between sound birds and those of varying degrees of lameness between 39 and 49 days of age. Sound broilers averaged 76% of their time lying and this increased significantly to 86% in lame birds (gai...
متن کاملLeg Disorders in Broiler Chickens: Prevalence, Risk Factors and Prevention
Broiler (meat) chickens have been subjected to intense genetic selection. In the past 50 years, broiler growth rates have increased by over 300% (from 25 g per day to 100 g per day). There is growing societal concern that many broiler chickens have impaired locomotion or are even unable to walk. Here we present the results of a comprehensive survey of commercial flocks which quantifies the risk...
متن کاملKinematic Analysis Quantifies Gait Abnormalities Associated with Lameness in Broiler Chickens and Identifies Evolutionary Gait Differences
This is the first time that gait characteristics of broiler (meat) chickens have been compared with their progenitor, jungle fowl, and the first kinematic study to report a link between broiler gait parameters and defined lameness scores. A commercial motion-capturing system recorded three-dimensional temporospatial information during walking. The hypothesis was that the gait characteristics of...
متن کاملThermal Nociceptive Threshold Testing Detects Altered Sensory Processing in Broiler Chickens with Spontaneous Lameness
Lameness is common in commercially reared broiler chickens but relationships between lameness and pain (and thus bird welfare) have proved complex, partly because lameness is often partially confounded with factors such as bodyweight, sex and pathology. Thermal nociceptive threshold (TNT) testing explores the neural processing of noxious stimuli, and so can contribute to our understanding of pa...
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ژورنال
عنوان ژورنال: Archives of Animal Husbandry & Dairy Science
سال: 2018
ISSN: 2688-822X
DOI: 10.33552/aahds.2018.01.000506