Strategies and facilities in order to improve animal welfare

Moura, Daniella Jorge de; Bueno, Leda Gobbo de Freitas; Lima, Karla Andréa Oliveira de; Carvalho, Thayla Morandi Ridolfi de; Maia, Adolfo

doi:10.1590/s1516-35982010001300034

Cited by 21 publications

(15 citation statements)

References 11 publications

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“…Air temperature values were higher in A1, A2, and A4 than in A3. According to Silva et al (2009) and Moura et al (2010), when the thermal environment is beyond the threshold value of 22ºC broiler performance is compromised. The recorded variables were dry bulb temperature (DBT, ºC), air relative humidity (RH, %), and air velocity (AV, m s -1 ), litter surface temperature (LST, ºC), litter humidity (LH) and the degree of compaction (LC, kg cm -2 ).…”

Section: Resultsmentioning

confidence: 99%

Incidence of Pododermatitis in Broiler Reared under Two Types of Environment

Jacob

Baracho

Nääs

et al. 2016

Rev. Bras. Cienc. Avic.

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Housing environment is essential to achieve good broiler performance and to prevent diseases, including footpad dermatitis (FPD). The objective of this study was to determine the incidence of footpad dermatitis in broilers chickens according to housing type. The study was carried out with broilers reared for 5, 12, 19, 29 and 40 days. Four houses were used in this observational study. House 1 (A1) had positive pressure and reused litter; house 2 (A2) had positive pressure and new litter (sawdust); house 3 (A3) had positive pressure and new litter (rice husks); and house 4 (A4) had negative pressure and reused litter. During the entire experiment, air environmental and litter surface temperatures, and litter compaction were recorded. Pododermatitis was assessed by visual scoring of the footpads. Footpads were scored as function of the severity of the lesion. The comparison of means by the test of Bonferroni at 95% confidence interval showed higher incidence of footpad dermatitis in A3, probably due to the particle size of litter substrate. The lowest footpad dermatitis incidence was found in A1, with reused sawdust litter.

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Section: Resultsmentioning

confidence: 99%

Incidence of Pododermatitis in Broiler Reared under Two Types of Environment

Jacob

Baracho

Nääs

et al. 2016

Rev. Bras. Cienc. Avic.

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“…Among the climatic elements the ones that most directly affect the poultry are the air temperature (DBT,°C) and relative humidity (RH), directly influencing the animals' thermal comfort (MOURA et al, 2010;CASSUCE et al, 2013). For an environment in feedlot condition to be considered comfortable it is necessary that the poultry does not lose energy to compensate cold or heat which is related to range on temperature and relative humidity which determine the zone of animal thermal comfort (NAZARENO et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Low Cost Fuzzy System Applied to the Control and Supervision of Thermal Environment in Poultry Farms

et al. 2017

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ABSTRACT:The aim of this study was to develop an automated fuzzy controller with microcontroller, consisting of hardware and software for the control and supervision of thermal environment in broiler farms. The study has been conducted in two steps: in the first one it was performed a computer analysis through simulation. In the second step it was performed the evaluation of the software and hardware developed by the equipment test in the registration of the thermal environment variables within the facility and activation of the climate control equipment. The experiment was conducted in a poultry house with broilers of Cobb 500 lineage, aged between 1 and 28 days in an experimental farm located in Bambuí -MG. The presented prototype is able to operate in an automatic way, the equipment control for the ambience in poultry farms and supervision of meteorological variables. The developed fuzzy controller estimated satisfactorily the thermal comfort for the poultry during 28 days of experiment, keeping the thermal parameters within the specified by literature. The system can be used in the automation of ambience equipment for the four steps of the production chain for broiler chickens.

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“…Ademais, o ruído (nível de pressão sonora) produzido pelas aves e pelos equipamentos dentro das instalações pode causar prejuízos aos trabalhadores. A avaliação da qualidade do ar em galpões para galinhas poedeiras ocorre com foco na saúde dos animais alojados e dos trabalhadores que permanecem até oito horas por dia nesse ambiente de trabalho (NÄÄS et al, 2007;MENEGALI et al, 2009;MOURA et al, 2010;VIGODERIS et al, 2010).…”

Section: Introductionunclassified

Condições ambientais em galpão convencional telado para galinhas poedeiras hyline W-36

Lourençoni¹,

Yanagi²,

Oliveira³

et al. 2015

Eng. Agríc.

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RESUMO:Devido às ocorrências dos vírus de influenza aviária (H5N1 e H7N2), estudos relacionados à biosseguridade têm-se intensificado, e uma das soluções discutidas é o uso de tela para cercar completamente o perímetro dos galpões, visando a evitar o contato das galinhas poedeiras alojadas com outras aves. Desta forma, o presente trabalho teve como objetivo avaliar e comparar a utilização de tela cercando o perímetro de galpões convencionais de poedeiras, sobre o ambiente acústico e aéreo no interior da instalação. A pesquisa foi realizada em uma granja comercial para produção de ovos, localizada no sul do Estado de Minas Gerais, e foi conduzida em um galpão aberto, que teve a metade de sua área cercada por tela e a outra metade mantida totalmente aberta. Foram alojadas galinhas poedeiras da linhagem Hyline W-36, sendo analisadas as variáveis de intensidade sonora, concentração de amônia (NH 3 ) e concentração de dióxido de carbono (CO 2 ). As variáveis foram coletadas em seis pontos de medição, em cada região (com e sem tela), dois em cada corredor (norte, central e sul). Os resultados indicaram que o uso de tela não alterou o nível de ruído e as concentrações de NH 3 e de CO 2 no interior do galpão analisado. Contudo, os níveis mensurados foram inferiores àqueles que ofereceriam riscos à saúde das aves e dos trabalhadores, podendo-se concluir que o uso de tela não influenciou negativamente no ambiente aéreo do galpão. PALAVRAS-CHAVE:biosseguridade, ruído, amônia, dióxido de carbono, poedeiras. ENVIRONMENTAL CONDITIONS IN A CONVENTIONAL SCREENED POULTRY SHEDABSTRACT: Avian influenza viruses (H5N1 and H7N2) triggered a great number of studies on biosafety, and one of the discussed solutions is the use of screen to enclose completely the poultry house perimeter, since it can avoid the contact of laying hens with other birds. Thus, the present study aimed to evaluate and compare the use of screen enclosing a conventional laying house perimeter by assessing acoustic and aerial environment inside the facility. The research was performed in a commercial egg production farm located in Southern Minas Gerais State, Brazil. It was carried out in an open facility, in which half area was enclosed by screen and the other half was maintained completely open. Hyline W-36 laying hens were housed. Sound intensity, ammonia concentration (NH 3 ) and carbon dioxide concentration (CO 2 ) were analyzed as variables. These variables were collected from six measuring points in each region (with and without screen), two in each alley (north, central and south). The results indicated that the use of screen did not alter the noise level, NH 3 and CO 2 concentrations inside the analyzed poultry house. However, the levels measured were smaller than to the thresholds that can offer health risks to birds and workers. Therefore, it may be concluded that the use of screen did not influence negatively the facility aerial environment.

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Strategies and facilities in order to improve animal welfare

Cited by 21 publications

References 11 publications

Incidence of Pododermatitis in Broiler Reared under Two Types of Environment

Incidence of Pododermatitis in Broiler Reared under Two Types of Environment

Low Cost Fuzzy System Applied to the Control and Supervision of Thermal Environment in Poultry Farms

Condições ambientais em galpão convencional telado para galinhas poedeiras hyline W-36

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