Consulta: creatorFacets:"Barbosa Filho,JAD"
Registros recuperados: 3
Data/hora: 13/06/2024 02:13:32

Environmental and physiological variables during the catching of broilers
Provedor de dados: 89
Autores: Queiroz,ML de V; Barbosa Filho,JAD; Duarte,LM; Brasil,D de F; Gadelha,CRF.
The objective of this study was to determine the critical points of the operation of broiler catching for transport to the processing plant from animal and operational perspectives. During catching, chickens, environmental variables (temperature and relative humidity) were constantly monitored to determine the Enthalpy Comfort Index (IEC). Also, the physiological variable rectal temperature (RT) was monitored as an indicator of stress suffered by the birds during this handling procedure. Bird welfare were evaluated by analyzing their behavior. The bag method was effective to prevent the struggling of birds while being taken from the broiler house to the transport truck, reducing physical injuries and losses during catching.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal welfare; Environment; Poultry; Pre-slaughter; Rectal temperature.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2015000100037

Behavior and performance of broiler strains reared under semi-intensive system with shaded areas
Provedor de dados: 89
Autores: Barbosa Filho,JAD; Silva,MAN; Silva,IJO; Coelho,AAD; Savino,VJM.
The matter of animal welfare has led to studies in order to evaluate alternative rearing systems for livestock in order to improve well-being. The semi-intensive system is an alternative method of rearing broilers in which the birds are kept in a poultry house and have free access to a pasture area during the day. It is known that ambient conditions may directly affect the behavior of birds reared in the semi-intensive system. Therefore, this research evaluated the behavior of four broiler strains reared under a semi-intensive system with a shaded area (provided by a black plastic screen - 50%) and the bioclimatic characteristics of this environment when compared with the non-shaded pasture. Thirty-five birds were reared in pens with 4.5 m² and 35 m² of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Adaptation; Broiler; Semi-intensive system; Welfare.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2005000400003

Egg quality in layers housed in different production systems and submitted to two environmental conditions
Provedor de dados: 89
Autores: Barbosa Filho,JAD; Silva,MAN; Silva,IJO; Coelho,AAD.
The production system using cages is a highly polemical issue in Europe, because of the space restriction imposed to laying hens. It is considered that the cage system might compromise important comfort movements, welfare and egg quality. This study evaluated egg quality and welfare of two strains of hens housed in a conventional system (battery laying cages) or litter system with nest and perches, and submitted to heat stress or comfort conditions. Two groups of 20 birds (10 Hy-line W36 and 10 Hy-line Brown) were submitted to two environmental conditions (26°C and 60% RH or 35°C and 70% RH) and two housing systems (cages or litter) in the early production phase. Egg quality was analyzed based on egg weight, eggshell thickness, specific gravity, and Haugh...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Egg quality; Environment; Housing systems; Laying hens.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2006000100003