Sistema de renovação de água em bebedouros para poedeiras
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Data
2019-12-17
Autores
Teixeira, Gislaine Trecenti
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Editor
Universidade Estadual Paulista (Unesp)
Resumo
Uma das atividades econômicas mais importantes do Brasil é a avicultura, no entanto, existem limitações à produção de aves, devido aos extremos climáticos registrados em certas regiões no Brasil. Porém, hoje existem recursos para que se possam minimizar os efeitos do verão e manter a produção constante. Para isso, o resfriamento da água de bebida das aves pode ser uma solução para tais problemas enfrentados pela avicultura. Este estudo teve como objetivo avaliar o efeito do sistema de renovação da água. As aves foram submetidas a criação em galpões convencionais, tipo californiano. Foram usadas 5.000 aves em cada galpão, onde foi avaliada produtividade, temperatura do ar (°C) e umidade relativa do ar (%) e temperatura da água (°C) em diferentes pontos dos aviários. No período do estudo, através de dados da estação meteorológica, definiu-se a ocorrência ou não de ondas de calor. Realizou-se o delineamento inteiramente casualizado (DIC) em esquema fatorial 2 × 2 (dois galpões: sistema convencional e com renovação de água; com e sem onda de calor) e os dados foram submetidos a análise de variância (5%). Verificou-se, influência positiva (p<0,05), no uso do sistema de renovação de água para temperatura da água (°C), consumo de água (ml) e produção de ovos (%). Na presença de onda de calor, as variáveis consumo de ração e de água foram menores (p< 0,05). Não houve interação entre os sistemas e a presença das ondas de calor. Conclui-se a eficiência do uso do sistema de renovação de água para desempenho zootécnico, todavia não interagindo com a presença de ondas de calor.
One of the most important economic activities in Brazil is poultry, however, there are limitations to poultry production due to climatic extremes in certain regions of Brazil. However, today there are resources to minimize the effects of summer and keep production constant. To this end, cooling poultry drinking water may be a solution to such problems faced by poultry. This study aimed to evaluate the effect of the water renewal system. The birds were reared in conventional Californian type houses. 5,000 birds were used in each house, where egg quality, productivity, temperature (° C) and relative humidity (%) and water temperature (° C) were evaluated at different points of the poultry houses. During the study period, data from the weather station defined the occurrence or not of heat waves. A completely randomized design (DIC) was carried out in a 2 × 2 factorial scheme (two houses: conventional system and with water renovation; with and without heat wave) and the data were submitted to analysis of variance (5%). The efficiency of the use of the water renovation system for zootechnical performance is concluded. Positive influence (p <0.05) was verified on the use of water renewal system for water temperature (° C), water consumption (ml) and egg production (%). In the presence of heat wave, the feed and water consumption variables were lower (p <0.05). There was no interaction between the systems and the presence of heat waves. It is concluded that the use of water renewal system brings benefits in zootechnical indices, however not interacting with the presence of heat waves.
One of the most important economic activities in Brazil is poultry, however, there are limitations to poultry production due to climatic extremes in certain regions of Brazil. However, today there are resources to minimize the effects of summer and keep production constant. To this end, cooling poultry drinking water may be a solution to such problems faced by poultry. This study aimed to evaluate the effect of the water renewal system. The birds were reared in conventional Californian type houses. 5,000 birds were used in each house, where egg quality, productivity, temperature (° C) and relative humidity (%) and water temperature (° C) were evaluated at different points of the poultry houses. During the study period, data from the weather station defined the occurrence or not of heat waves. A completely randomized design (DIC) was carried out in a 2 × 2 factorial scheme (two houses: conventional system and with water renovation; with and without heat wave) and the data were submitted to analysis of variance (5%). The efficiency of the use of the water renovation system for zootechnical performance is concluded. Positive influence (p <0.05) was verified on the use of water renewal system for water temperature (° C), water consumption (ml) and egg production (%). In the presence of heat wave, the feed and water consumption variables were lower (p <0.05). There was no interaction between the systems and the presence of heat waves. It is concluded that the use of water renewal system brings benefits in zootechnical indices, however not interacting with the presence of heat waves.
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Palavras-chave
Ambiência, Resfriamento, Dessedentação, Bem-estar, Avicultura, Environment, Cooling, Desedentation, Welfare, Poultry