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Biomassa microbiana do solo. Infoteca-e
REIS JÚNIOR, F. B. dos; MENDES, I. de C..
ABSTRACT: The microbial biomass, respiration and their derivative indexes are proposed as indicators of the state and changes of the soil organic matter. This document presents basic information about these indicators and the two methodologies most used for C-microbial biomass determinations, the fumigation-incubation and the fumigation-extraction methods. The basic principles behind these methods, advantages, disadvantages and limitations are discussed. As then main objective of this review, recent results from research in this field developed at the Embrapa Cerrados are presented.
Tipo: Documentos (INFOTECA-E) Palavras-chave: Microbial flora; Incubation.; Biomassa; Carbono; Fumigação; Incubação; Microbiologia do Solo; População Microbiana.; Biomass; Fumigation; Microbiology; Soil..
Ano: 2007 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/572256
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The Effects of Different Eggshell Temperatures Between Embryonic Day 10 and 18 on Broiler Performance and Susceptibility to Ascites Rev. Bras. Ciênc. Avic.
Ipek,A; Sahan,U; Sozcu,A.
ABSTRACTThe aim of the current study was to determine the effects of low (33.3-36.7 ˚C), control (37.8-38.2 ˚C) and high (38.9-40.0 ˚C) eggshell temperatures (ESTs) between days 10-18 of incubation on broiler performance and susceptibility to ascites. The effects of different ESTs on hatchling weight were significant. The highest residual yolk sac weight (7.7 g) and relative yolk sac weight (18.7%) were observed in high EST group, whereas the highest yolk-free body weight (36.22 g) was obtained in the control group. Relative post-hatch heart weight was lower in the high EST group (0.64%) compared with the control (0.84%) and low (0.88%) EST groups. At 6 weeks of age, body weights of broilers of the low, control, and high EST groups were 2172.6, 2543.9,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ascites; Broiler; Eggshell temperature; Incubation..
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2015000300387
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