Broiler breeder behavior and egg production as function of environmental temperature

Pereira, Danilo Florentino; Nääs, Irenilza de Alencar; Romanini, Carlos Eduardo Bites; Salgado, Douglas D’Alessandro; Pereira, Gracely Ortega Tavares

doi:10.1590/s1516-635x2007000100002

Cited by 10 publications

(4 citation statements)

References 17 publications

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“…Slatted flooring might offer almost no possibilities for the birds to peck and manipulate particles when no litter particles are available on the ground, therefore, feed pecking occurs rather than pecking at the slatted floor [ 41 ] resulting in higher feed intake. Pereira et al [ 42 ] observed in the slatted flooring system that there was air movement in the plenum between the manure and the perforated floor, and increased air movement can reduce heat stress in broilers. Heat stress negatively affects the welfare and productivity of broilers [ 43 ].…”

Section: Discussionmentioning

confidence: 99%

Effect of Different Flooring Designs on the Performance and Foot Pad Health in Broilers and Turkeys

Chuppava

Visscher

Kamphues

2018

Animals

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Simple SummaryThe contact of the birds’ feet with litter and their excreta during the fattening period might lead to reduced body weight, carcass weight, feed intake, and impaired foot pad health in poultry. This study was performed to evaluate the influence of different flooring designs with reduced (50% or 100% slatted floors) contact to the excreta on the above-mentioned parameters in the fattening of broilers and turkeys. The provision of litter on the floor had no relevant effect on foot pad health in broilers. Using fully-slatted flooring in fattening turkeys led to a higher body weight, while reducing incidence of injuries of foot pads. It is, therefore, necessary to consider how a similar excellent litter quality can be achieved in basically littered husbandry systems common in Europe.AbstractLitter quality has a significant influence on the performance and foot pad health in poultry. The objective of this study was to evaluate the effects of different types of flooring designs on the performance and foot pad health in fattening broilers and turkeys. Three trials were conducted for each species using a total of 720 Ross 308 broilers and 720 Big 6 turkeys. After day seven, animals were randomly assigned to four groups with three subgroups each: G1—floor pens with litter, G2—floor pens with litter and floor heating, G3—partially-slatted flooring, including a littered area, and G4—fully-slatted flooring with a sand bath (900 cm2). Animals of both species had a significantly higher final body weight at dissection (day 36) after being reared on fully-slatted floors compared to common littered floors. In turkeys, the feed conversion ratio was worse in G4 (1.53 ± 0.04) than in G1 (1.47 ± 0.02) and G2 (1.48 ± 0.03). Water to feed ratio was significantly higher in G2 than other groups. Turkeys’ foot pad health was significantly better in G4 than in other groups beginning at day 21. In turkeys, platforms with slatted floors that allow for temporary separation of the feet from the litter could lead to improvements in foot pad health which could better enable the realization of species-specific behaviours and activities in littered areas.

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Section: Discussionmentioning

confidence: 99%

Effect of Different Flooring Designs on the Performance and Foot Pad Health in Broilers and Turkeys

Chuppava

Visscher

Kamphues

2018

Animals

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“…A transição do ano entre o inverno e primavera apresentou valores menores que trazem conforto às aves poedeiras tanto na parte da manhã (22,91) como na parte tarde (30,21). É de suma importância o conhecimento do microclima onde as aves ficam alojadas, segundo Dawkins (1999) e Ferrante et al (2001) o ambiente influencia fortemente no comportamento das aves, desta forma é possível identificar, quantificar e caracterizar as condições de conforto térmico e bem-estar (PEREIRA et al, 2007). Sainsbury (1971), Yousef (1985), Medeiros (2001) e Damasceno (2010) mostram que a faixa de temperatura de bulbo seco, umidade relativa e velocidade do vento devem ficar entre 21ºC e 27ºC; 50% e 70% e 0,5 ms -1 e 1,5 ms -1 para que as aves resultem em melhor desempenho animal, e os resultados verificados no estudo (Tabela 1) mostram que em todas as transições das estações do ano mantiveram os valores de conforto recomendados para as variáveis bioclimáticas avaliadas.…”

Section: Resultsunclassified

Mapeamento De Contorno Bioclimático Em Aviário De Região Tropical Na Cidade De Dracena/Sp

2018

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O ambiente dentro dos galpões avícolas é um dos fatores primordiais para se conseguir bons índices zootécnicos e retornos financeiros. Assim, o objetivo deste estudo foi avaliar o ambiente térmico no interior do galpão de aves poedeiras em diferentes estações do ano na tentativa de proporcionar uma melhor relação ao bem-estar das aves. O estudo foi realizado no galpão de aves poedeiras na UNESP - campus de Dracena/SP. Foram distribuídos e aferidos em doze pontos equidistantes as principais variáveis bioclimáticas, como temperatura de globo negro, temperatura do ar, temperatura de bulbo seco, temperatura de bulbo úmido, temperatura de superfície de telhado, umidade relativa do ar e velocidade do vento. As medições foram feitas nas transições entre as estações do inverno e primavera, primavera e verão e verão e outono, com o intuito de observar qual é a melhor estação do ano em que as aves apresentam um melhor conforto térmico dentro das instalações avícolas. As médias das variáveis bioclimáticas foram comparadas utilizando o teste estatístico Tukey (95%) através do software Statigrafics Centurion, e o software de superfície SURFER para o mapeamento do aviário. Os resultados indicaram que a transição entre inverno e primavera apresentou melhores valores com relação ao conforto térmico dentro do galpão, possibilitando um melhor bem-estar das aves e consequentemente melhor desempenho e retorno financeiro.PALAVRAS-CHAVES: Ambiência, Aquecimento Global, Ondas De Calor, Zootecnia De Precisão. MAPPING BIOCLIMATIC CONTOUR OF A POULTRY SHED IN A TROPICAL REGION IN THE CITY OF DRACENA/SPABSTRACT: The environment inside poultry houses is one of the main factors to achieve good zootechnical indexes and financial returns. Thus, the objective of this study was to evaluate the thermal environment inside the shed of laying hens in different seasons of the year in an attempt to provide a better relation to the welfare of birds. The study was carried out in the poultry shed at UNESP campus in Dracena / SP. The main bioclimatic variables, such as black globe temperature, air temperature, dry bulb temperature, wet bulb temperature, roof surface temperature, relative air humidity and wind speed were distributed and measured at twelve equidistant points. The measurements were taken at the transition between the seasons of winter and spring, spring and summer and summer and fall, in order to obtain the best season of the year in which the birds can obtain better thermal comfort inside the poultry facilities. The averages of the bioclimatic variables were compared using the Tukey statistical test (95%) using the Statigrafics Centurion software, where the SURFER surface software was used to map the aviary. The results indicated that the transition between winter and spring presented better values with respect to thermal comfort inside the shed, allowing a better welfare of the birds and consequently better performance and financial return.KEYWORDS: Environment, Global Warming, Heatwaves, Precision Poultry Production.

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“…According to Garcês et al [ 53 ], an ideal litter would be one that absorbs liquids such as water and fecal water and dries quickly or releases the liquid. Furthermore, Pereira et al [ 55 ] observed that there is air circulation between litter layers, which reduces the heat stress of broilers.…”

Section: Discussionmentioning

confidence: 99%

Influence of Using Perforated Plastic Flooring Beneath the Waterline on Growth Performance, Litter Quality, and Footpad Health of Broiler Chickens: A Field Study

Sonnabend

Spieß

Reckels

et al. 2022

Animals

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The aim of this study was to evaluate the effect of slatted flooring beneath waterlines in broiler barns on litter quality and, subsequently, footpad health. The hypothesis tested was that installing slatted flooring underneath waterlines helps to improve litter quality and thus reduces footpad diseases, enhancing animal welfare as a result. Five experimental runs with two groups were conducted. Each run was defined as one fattening period of 32 days and consisted of 15,000 broiler Ross 308 of both sexes. Every barn was divided into three areas (drinkers, feeders, and comfort area) for weekly sampling. No influence on growth performance was noted. The slatted flooring influenced the litter quality by preventing the litter in the experimental group (EG = 690 ± 167 g/kg DM) from becoming moisture until day 14 of the fattening period compared to the control group (CON = 636 ± 198 g/kg DM). The footpad health was also influenced by using slatted flooring, with lower camera-based footpad scores in the EG (8.80) compared to CON (22.0) at the slaughterhouse (p = 0.0258). Installing slatted flooring beneath the waterline reduced the moisture of the litter compared to the control barn in the first two weeks of age and showed a positive effect on the footpad health of the broilers at the end of fattening, which indicates an improvement in animal welfare.

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Broiler breeder behavior and egg production as function of environmental temperature

Cited by 10 publications

References 17 publications

Effect of Different Flooring Designs on the Performance and Foot Pad Health in Broilers and Turkeys

Effect of Different Flooring Designs on the Performance and Foot Pad Health in Broilers and Turkeys

Mapeamento De Contorno Bioclimático Em Aviário De Região Tropical Na Cidade De Dracena/Sp

Influence of Using Perforated Plastic Flooring Beneath the Waterline on Growth Performance, Litter Quality, and Footpad Health of Broiler Chickens: A Field Study

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