Desempenho de frangos de corte e produção de energia em biodigestores, utilizando-se três tipos de cama
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Data
2014-08-01
Autores
Roccon, Josiane [UNESP]
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Universidade Estadual Paulista (Unesp)
Resumo
O objetivo do estudo foi avaliar o uso de três tipos de cama de frango e sua ação na produção de biogás. Foram utilizados 720 pintos de corte da linhagem Cobb 500®, distribuídos em um delineamento inteiramente casualizado, com três tratamentos e oito repetições com 30 aves cada. Os tratamentos consistiram de diferentes tipos de cama: T1: cama de maravalha; T2: cama de casca de amendoim; T3: cama de capim napier. As características avaliadas nos frangos foram: desempenho, rendimento de carcaça e de partes e densitometria óssea. Para as camas determinou-se a produção, a composição química e os potenciais de produção de biogás de cama (biodigestores do tipo contínuo e batelada) de frangos de corte. As camas e as excretas alimentaram os biodigestores com quatro repetições por tratamento. Foi realizada a análise de variância dos dados e em caso de significância estatística foi adotado o procedimento de comparação das médias pelo Teste de Tukey a 5% de probabilidade. Não houve diferença significativa (p<0,05) entre os tratamentos para nenhuma das características de desempenho das aves (ganho de peso, peso médio, consumo de ração e conversão alimentar). O tratamento com cama de maravalha quando comparado aos demais tratamentos apresentou diferença significativa com relação ao rendimento da coxa e sobrecoxa e também para as características densitométricas. Foram também observados os maiores valores para a composição mineral óssea e a densidade mineral óssea. Para o teor de minerais, a cama de casca de amendoim apresentou o maior teor de nitrogênio e o capim napier o maior teor de potássio, diferindo significativamente dos demais tratamentos. O tratamento em se que utilizou a cama de maravalha apresentou valores maiores e significativos (P<0,05) para FDN, FDA e Lignina. A maior produção de biogás e de metano foi obtida nos biodigestores semi-contínuos abastecidos com capim napier, observando se ...
The purpose of the study was to evaluate the use of three types of poultry litter and its effect on biogas production. 720 broiler chicks Cobb 500 ® line were distributed in a completely randomized design with 3 treatments and 8 replicates of 30 birds each were utilized. Treatments consisted of different bed types: T1: Shavings; T2: Bark Peanut; T3: Napier grass. The characteristics evaluated were: performance, carcass and parts, bone densitometry, production, chemical composition and potential of biogas production from poultry litter (digesters continuous type and batch). The poultry litter and excreta were distributed in digesters with 4 replicates per treatment. Analysis of variance was performed and in case of statistical significance was adopted procedure for comparison of means by Tukey test at 5% probability. There was no significant difference (p <0.05) between treatments for any of the performance characteristics of birds (GP, PM, RC and AC). Treatment with shavings when compared to the other treatments showed significant difference with respect to the income of the thigh and drumstick and also for densitometric characteristics showed higher values for bone mineral content and bone mineral density. For the mineral content, the Double Peanut Bark the highest level of Nitrogen and Napier grass the highest level of potassium, differing significantly from the other treatments. The treatment that used the shavings had higher and significant values (P <0.05) for NDF, ADF and lignin. The higher production of biogas and methane was obtained in semi-continuous digesters supplied with napier grass, observing mean values of 0.00319 and 0.13762 m³ kg, respectively. The potential for methane production was significantly different between treatments peanut shell and napier grass in relation to treatment with wood shavings, which has the potential of producing 0.2346 m³ / kg VS added. For treatment in digesters of the batch type napier ...
The purpose of the study was to evaluate the use of three types of poultry litter and its effect on biogas production. 720 broiler chicks Cobb 500 ® line were distributed in a completely randomized design with 3 treatments and 8 replicates of 30 birds each were utilized. Treatments consisted of different bed types: T1: Shavings; T2: Bark Peanut; T3: Napier grass. The characteristics evaluated were: performance, carcass and parts, bone densitometry, production, chemical composition and potential of biogas production from poultry litter (digesters continuous type and batch). The poultry litter and excreta were distributed in digesters with 4 replicates per treatment. Analysis of variance was performed and in case of statistical significance was adopted procedure for comparison of means by Tukey test at 5% probability. There was no significant difference (p <0.05) between treatments for any of the performance characteristics of birds (GP, PM, RC and AC). Treatment with shavings when compared to the other treatments showed significant difference with respect to the income of the thigh and drumstick and also for densitometric characteristics showed higher values for bone mineral content and bone mineral density. For the mineral content, the Double Peanut Bark the highest level of Nitrogen and Napier grass the highest level of potassium, differing significantly from the other treatments. The treatment that used the shavings had higher and significant values (P <0.05) for NDF, ADF and lignin. The higher production of biogas and methane was obtained in semi-continuous digesters supplied with napier grass, observing mean values of 0.00319 and 0.13762 m³ kg, respectively. The potential for methane production was significantly different between treatments peanut shell and napier grass in relation to treatment with wood shavings, which has the potential of producing 0.2346 m³ / kg VS added. For treatment in digesters of the batch type napier ...
Descrição
Palavras-chave
Frango de corte, Biogas, Cama de galinha, Gramínea, Digestão anaeróbia, Biodigestor, Desempenho, Grasses
Como citar
ROCCON, Josiane. Desempenho de frangos de corte e produção de energia em biodigestores, utilizando-se três tipos de cama. 2014. iv, 83 p. Dissertação (mestrado) - Universidade Estadual Paulista Júlio de Mesquita Filho, Faculdade de Ciências Agrárias e Veterinárias, 2014.