Consulta: subjectFacets:"Swine buildings"
Registros recuperados: 2
Data/hora: 12/06/2024 03:06:38

Energetic efficiency of a deep bed swine production system
Provedor de dados: 70
Autores: Veloso,Alessandro V.; Campos,Alessandro T.; Paula,Vanderson R. de; Dourado,David C.; Yanagi Júnior,Tadayuki; Silva,Enilson B.
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...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Energy input and output; Swine buildings; Alternative management; Sustainability of biosystems.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162012000600008

Nitrogen fertilization by deep-bedding swine production and its effects on the properties of a Quartzarenic Neosol
Provedor de dados: 70
Autores: Campos,Alessandro T.; Veloso,Alessandro V.; Silva,Enilson de B; Yanagi Junior,Tadayuki; Klosowski,Elcio S.
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...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Swine production; Swine buildings; Alternative management; Waste treatment; Organic fertilizer; Quartz-sand neosol.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162012000400015