Efeito de diferentes profundidades de cama sobre parâmetros ambientais para suínos em crescimento e terminação

Corrêa, Érico Kunde; Lucia, Thomaz; Gil-Turnes, Carlos; Corrêa, Márcio Nunes; Bianchi, Ivan; Corezzolla, José Luís; Ulguim, Rafael da Rosa

doi:10.1590/s1415-43662008000500016

Cited by 5 publications

(1 citation statement)

References 13 publications

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“…The production system of pigs in deep bed has as principle the replacement of conventional floor for a bed of about 0.50m thick consisting of carbon-rich materials, which performs the dual function of the manure digester floor and which are retained , stored and stabilized within the pig building, managed and treated in solid state through the composting process, providing cost reduction in buildings, improving the welfare of animals and causing less impact on the environment (CORRÊA et al, 2009 ;CORRÊA et al, 2008;COSTA et al, 2008;TAIT et al, 2009).…”

Section: Methodsmentioning

confidence: 99%

Energetic efficiency of a deep bed swine production system

et al. 2012

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ABSTRACT:The aim of this work was to evaluate the energy flows of a commercial production system of swine deep bed in its finishing phase, located in Juiz de Fora, in the State of Minas Gerais, Brazil. Thus, an energy efficiency study was carried out by monitoring a lot of animals, during a 94-day period. The energy rate of each compound involved in the production process was quantified and the matrixes of energy consumption were determined in the form of animal feeding, electrical energy, piglets, material used as deep bed, human labor, equipment, swine buildings, production of alive swine for slaughter, organic fertilizer production (swine deep bed or swine deep litter). From the direct input energy, 80.57% correspond to animal feeding, 11.90% to pigs for slaughter and 6.76% to piglets, while from the energy output 53.45% correspond to the terminating swine and 46.55% to organic fertilizer (swine deep bed). By the results obtained, we can conclude that such production system has corresponded to an industrial and highly specialized agro ecosystem, importing a great part of the energy consumed in the production process, with 41% of energy efficiency. KEYWORDS:Energy input and output, swine buildings, alternative management, sustainability of biosystems. EFICIÊNCIA ENERGÉTICA DE UM SISTEMA DE PRODUÇÃO DE SUÍNOS EMCAMA SOBREPOSTA RESUMO: O objetivo deste trabalho foi avaliar os fluxos de energia de um sistema comercial de produção de suínos em cama sobreposta da fase de terminação, localizado em Juiz de Fora -MG. Para tanto, realizou-se estudo de eficiência energética, por meio do acompanhamento de um lote de animais, durante o período de 94 dias. Quantificou-se o coeficiente energético de cada componente envolvido no processo de produção e determinaram-se as matrizes de consumo energético nas formas de ração, energia elétrica, leitões, material usado como cama, mão de obra, equipamentos, instalações, produção de suínos vivos, e produção de adubo orgânico (cama sobreposta de suíno). Da energia direta de entrada, 80,57% correspondem à ração, 11,90% à serragem e 6,76% aos leitões. Da energia de saída, 53,45% referem-se aos suínos para abate e 46,55% ao adubo orgânico (cama sobreposta de suíno). Pelos resultados obtidos, pode-se concluir que o sistema de produção em questão se enquadrou nas características de um agroecossistema industrial, altamente especializado, importando grande parte da energia consumida no processo de produção e apresentando eficiência energética de 41%. PALAVRAS-CHAVE:Balanço de energia, instalações para suínos, manejo alternativo, sustentabilidade de biossistemas.

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Section: Methodsmentioning

confidence: 99%

Energetic efficiency of a deep bed swine production system

et al. 2012

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Chemical and microbiological characteristics of rice husk bedding having distinct depths and used for growing–finishing swine

Corrêa¹,

Bianchi²,

Perondi³

et al. 2009

Bioresource Technology

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This study compared the effects of different bedding depths on the chemical and microbiological characteristics of the bedding material used to raise pigs during growing and finishing. The experiment was conducted in two pens housing 5 pigs from 60 to 145 days of age, with rice husk beddings 0.50 or 0.25 m deep. Four lots of pigs (replicates) were raised over time in each bedding depth: each bedding was used by two consecutive lots. Bedding samples were collected quarterly to determine the most probable number (MPN) of thermophilic and mesophilic bacteria, fungi and actinomycetes. Contents of N, P, K, C, organic, mineral and dry matter, C:N ratio and pH were also determined. The MPN of thermophilic bacteria was higher for the 0.50 m than for the 0.25 m bedding (p<0.05). The compost of 0.25 m deep bedding had a higher N, P and K content than that from the 0.50 m bedding (p<0.05). Thus, the use of the 0.25 m deep bedding would be recommended due to its greater agronomical value in comparison with the deeper bedding.

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Nitrogen fertilization by deep-bedding swine production and its effects on the properties of a Quartzarenic Neosol

Campos¹,

Veloso²,

Silva

et al. 2012

Eng. Agríc.

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ABSTRACT:The objective of this study was to evaluate the effects of the nitrogen fertilization in the form of swine deep bed in the properties of a quartz-sand neosol. The organic compound used was the deep bed made with rice hulls, from a commercial swine finishing system farm. Deep bed samples have been collected at various points in the installation in order to obtain a representative composite sample which has been fractionated in a 2.0 mm sieve and submitted to a 50-day maturation period. Then, agronomic value analyses were done. The experimental design was completely randomized. The treatments consisted of 0; 75; 150 and 300 mg dm -3 of N doses of deep bed as well as an additional treatment with ammonium sulfate at a 150 mg dm -3 of N. The experimental period in the greenhouse was 45 days, where the soil was cultivated with maize. After the experiment completion, further soil properties analyses were done. From the results, it was noted that the organic fertilization with deep bed provided a significant increase in the levels of potassium, in the sum of the bases, in the effective CEC, in the CEC at pH 7.0 and in the percentage of saturation.KEYWORDS: swine production, swine buildings, alternative management, waste treatment, organic fertilizer, quartz-sand neosol. ADUBAÇÃO NITROGENADA NA FORMA DE CAMA SOBREPOSTA DE SUÍNO E SEUS EFEITOS NOS ATRIBUTOS DE UM NEOSSOLO QUARTZARÊNICO1 RESUMO: Objetivou-se com o presente trabalho avaliar os efeitos da adubação nitrogenada na forma de cama sobreposta de suíno sobre os atributos de um Neossolo Quartzarênico. O composto orgânico utilizado foi a cama sobreposta, feita com casca-de-arroz, proveniente de uma granja comercial de suínos em sistema de terminação. As amostras de cama sobreposta foram retiradas em vários pontos da instalação, visando a obter-se amostra composta representativa, após o que foi fracionada em peneira de 2,0 mm e submetida a uma compostagem adicional de 50 dias. Na sequência, foram realizadas análises de valor agronômico. O delineamento experimental foi o inteiramente casualizado. Os tratamentos constituíram-se das dosagens de 0; 75; 150 e 300 mg dm -3de N na forma de cama sobreposta, bem como um tratamento adicional com sulfato de amônio na dose de 150 mg dm -3 de N. O período experimental em casa de vegetação foi de 45 dias, onde se cultivou o solo com milho. Finalizado o experimento, procedeu-se a nova análise dos atributos do solo. Pelos resultados obtidos, notou-se que a adubação orgânica com cama sobreposta proporcionou aumentos significativos nos teores de potássio, na soma de bases, na CTC efetiva, na CTC a pH 7,0 e na porcentagem de saturação por bases.

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Efeito de diferentes profundidades de cama sobre parâmetros ambientais para suínos em crescimento e terminação

Cited by 5 publications

References 13 publications

Energetic efficiency of a deep bed swine production system

Energetic efficiency of a deep bed swine production system

Chemical and microbiological characteristics of rice husk bedding having distinct depths and used for growing–finishing swine

Nitrogen fertilization by deep-bedding swine production and its effects on the properties of a Quartzarenic Neosol

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