2011
DOI: 10.1017/s0043933911000493
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Influence of rearing conditions and manure management practices on ammonia and greenhouse gas emissions from poultry houses

Abstract: Poultry production has been identified as a major producer of NH 3 and, to a lesser extent, of greenhouse gases (GHGs) mainly by national emissions inventories. However, since most national inventories are based on average emission factors for each type of animal ('tier 1' approach), the factors that influence these emissions (through breeding and manure-management practices) are not taken into account. The first step to improve inventories and propose mitigation options (e.g. best management practices, innova… Show more

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Cited by 53 publications
(52 citation statements)
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“…Thus, the development of strategies aiming at decreasing the amount of lost N is greatly needed. One such strategy is to reduce the amount of N excreted by livestock (Méda et al, 2011), by increasing the N utilisation efficiency.…”
Section: Introductionmentioning
confidence: 99%
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“…Thus, the development of strategies aiming at decreasing the amount of lost N is greatly needed. One such strategy is to reduce the amount of N excreted by livestock (Méda et al, 2011), by increasing the N utilisation efficiency.…”
Section: Introductionmentioning
confidence: 99%
“…Thus, the development of strategies aiming at decreasing the amount of lost N is greatly needed. One such strategy is to reduce the amount of N excreted by livestock (Méda et al, 2011), by increasing the N utilisation efficiency.Body protein deposition (PD) depends on the animal's maximum genetic potential. For instance, in broilers, too much protein or amino acid imbalance in the diet does not promote † E-mail: sakomura@fcav.unesp.br animal 903 extra growth but rather may overload the bloodstream with amino acids to be metabolised, requiring extra energy that is diverted from production to N excretion processes in the synthesis of uric acid (Macleod, 1997).…”
mentioning
confidence: 99%
“…Assim, fatores de emissão (FE) podem ser determinados de forma mais representativa para os setores produtivos brasileiros. Na avicultura de corte, em particular, os dados relativos às emissões de GEE provenientes dos dejetos de frangos em sistemas de criação são escassos, e as incertezas sobre os FE são relativamente elevadas (MEDA et al, 2011), o que dificulta a definição de políticas públicas e ações no setor produtivo para atingir os objetivos de redução assumidos e tornar a atividade mais sustentável.…”
Section: Measurements and Modeling To Predict Of Ghg And Nh3 Emissionunclassified
“…Esses trabalhos são importantes para o desenvolvimento de sistemas de ventilação e exaustão, mas não fornecem os FE e estimativas precisas da emissão por categoria animal, dado importante para os inventários de GEE. Adicionalmente, há considerável variabilidade entre os valores propostos que, segundo Meda et al (2011) e Hassouna et al (2013, pode ser atribuída a problemas metodológicos, gestão peculiar de criação de cada país/região e complexas interações observadas nos dejetos dos animais. 17 Outra grande fonte de variação existente na literatura é a falta de padronização ao expressar os FE.…”
Section: Introdução Geralunclassified
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