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| Mattioli,Matheus C.; Campos,Alessandro T.; Yanagi Junior,Tadayuki; Marin,Diego B.; Eugênio,Tony M. C.; Costa Junior,José E. V.. |
| ABSTRACT The objective of this study was to evaluate the sustainability of a broiler chicken production system, with confinement in Darkhouse sheds, by energetic analysis. Energy flows of a complete production cycle, 56 days, were considered, of which the energy inputs and outputs were computed in direct and indirect forms, by estimating the energy coming from the quantity of feed, water, machinery and equipment, human labor, sheds, silos, among other components of the productive system, multiplied by their respective energetic coefficients. The total energy demand of a system in a production cycle for the production of 1 kg of live chicken and its energy efficiency coefficient were determined. The studied system had energy conversion coefficient of 95%,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Sustainability; Input-output analysis; Livestock buildings and environment; Aviculture; Broiler chicken facilities. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662018000900648 |
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| Campos,Alessandro T.; Veloso,Alessandro V.; Silva,Enilson B.; Yanagi Júnior,Tadayuki; Mattioli,Matheus C.. |
| The goal of this study was to evaluate the nitrogen fertilization as deep litter for pigs in order to produce biomass and accumulate nutrients by the corn. A deep litter made of rice husk as organic compound, from a commercial pig farm during finishing phase, was used. After three consecutive batches of pigs, the deep litter was subjected to a maturation period of 50 days, and samples of this material were taken for analysis of agronomic value. The experimental design was completely randomized with five replicates. The treatments consisted of doses of 0, 75, 150 and 300mg dm-3 of N of deep litter, as well as an additional treatment with ammonium sulfate, with a dosage of 150mg dm-3 of N. After 45 days, corn plants were harvested in order to evaluate the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pig farming; Pig facilities; Alternative management; Waste treatment; Organic fertilizer; Zea mays. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162013000600018 |
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