The aim of this study was to closely examine the Salmonella enterica serovar Enteritidis environmental contamination on persistently positive layer …
In this study, microwave heating has been considered for in-shell egg pasteurization. In the first part, the effects of temperature …
Eggs were collected monthly from 12 cage-layer flocks on four farms where Salmonella Enteritidis was present in vaccinated flocks despite …
Effective terminal cleaning and disinfection (C&D) is regarded as a necessary step for the elimination of Salmonella spp. from laying …
Fowl typhoid and pullorum disease are two distinct septicaemic diseases largely specific to avian species and caused by Salmonella Gallinarum …
Salmonella enterica in poultry remains a major political issue. S. enterica serovar Enteritidis, particularly, remains a world-wide problem. Control in …
The aim of this preliminary work is to reach to a cleaner production of intact shell-table eggs free from Salmonella …
This paper assesses US resident support for mandatory labeling of animal welfare information on pork and egg products and outlines policy considerations for assessment prior to implementing any mandatory labeling policies regarding animal welfare practices. Results suggest consumers support mandatory labeling indicating use of gestation crates (stalls) and laying hen cages. Estimates suggest consumers would …
Animal welfare related issues have been intensely discussed in recent years as a consequence of changes in public attitudes and regulatory reforms that are taking place in many countries. A combination of public opinion pressure and trade policy has driven requirements for regulation and the World Trade Organization (WTO) assigned the World Organization for Animal …
This article highlights some key areas where economics can contribute to the current debate about animal welfare. Production economics reveals that producers will not maximize animal welfare, even if animal well-being is highly correlated with output. Welfare economics raises thorny issues about the doublecounting of benefits when humans exhibit altruism towards animals, while public economics …
Decisions made by livestock producers inevitably determine the extent of actual farm animal welfare (FAW) provision in livestock production. This article identify key issues in the identification and empirical measurement of farmer’s preferences for FAW-related, non-use values to encourage theoretically-sound future research to address relevant potential producer trade-off such as those between use and non-use …
This review highlights the possible pain experienced by layer and broiler poultry in modern husbandry conditions. Receptors which respond to noxous stimulation (nociceptors) have been identified and physiologically characterised in many different part of the body of the chicken including the beak, mouth, nose, joint capsule and scaly skin. Stimulation of these nociceptors produces cardiovascular …
This study was carried out to evaluate the performance and egg quality of laying hens in their second laying cycle submitted to different forced-moulting methods and three environmental temparatures. Six hundred layers were distributed in a completely randomized experimental design with 15 treatments with five replicates of eight birds each, according to 5×3 factorial arrangement …
Moulting is a natural phenomenon in birds. Temperature variation and photoperiodic changes induce circadian and circannual rhythms, manifested by changes in the neural and endocrine systems, ultimately causing physiological processes resulting in a moult. The concept of induced moulting by feed deprivation arose during the early part of the 20th century as a solution to …
The purpose of this study was to evaluate alternative molting protocols assessing hen welfare and performance during and after molt. Hyline W-36 pullets were housed at 15 wk of age, and their egg production was obtained during this first cycle. When birds were 80 wk, the following molting treatments were applied: a conventional molt consisting …
Dietary molt induction to initiate additional egg laying cycles in commercial laying hen flocks is a wide spread practice in …
The objectives of this study were to evaluate and compare the effects of production, physiology, egg quality, and economics of …
Behaviour in poultry is predominately visually mediated and vision is important to the welfare of poultry. The relationship between vision, behaviour and welfare has primarily been investigated in relation to artificial lighting. Genetically blind chickens provide an alternative experimental paradigm for further investigating the importance of sight. The primary aim of the study was to …