Microbial composition of poultry excreta

Nodar, Rosa; Acea, M. J.; Carballas, T.

doi:10.1016/0269-7483(90)90150-q

Cited by 27 publications

(6 citation statements)

References 19 publications

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“…The highest concentration of total Kjeldahl nitrogen was determined in the samples of laying hen manure (7.2%) while the lowest in the case of cattle manure (4.5%). This corresponds to the results (4.5-8%) reported by Nodar et al (1990), andGüngör-Demirci et al (2004). However, Myszograj and Puchalska 2012and Bednarek et al ( 2010) noted lower values (0.4-2.8%).…”

Section: Discussionsupporting

confidence: 86%

Impact of a microbial-mineral biopreparation on microbial community and deodorization of manures

et al. 2015

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The aim of this study was to determine the number of bacteria in poultry, cattle and swine manure in order to perform hygienization and deodorization using a microbial-mineral biopreparation. The highest number of bacteria was recorded in laying hens manure (5.1×10(10) cfu/g). It was noted that bacteria: coliforms, E. coli, Clostridium, Enterococcus number was reduced (1-2 log) after the biopreparation application. The investigated odorous compound concentrations were reduced with 34-78% efficiency, depending on the type of manure and odorant. All odorous compounds were efficiently reduced only in the case of laying hen manure.

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Section: Discussionsupporting

confidence: 86%

Impact of a microbial-mineral biopreparation on microbial community and deodorization of manures

et al. 2015

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“…Cattle slurry and poultry excreta contain concentrations typically about ten times greater than in pig slurry (Nodar et al, 1990). Initially, populations of viable organisms decline abruptly (Nodar et al, 1992) although persistence of E. coli O157:H7 (Bach et al, 2005b) can be more than 30 days at 22-23 1C, and even longer at lower temperatures (Kudva et al, 1998).…”

Section: Article In Pressmentioning

confidence: 99%

Development of a risk-based index for source water protection planning, which supports the reduction of pathogens from agricultural activity entering water resources

Goss

Richards

2008

Journal of Environmental Management

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Source water protection planning (SWPP) is an approach to prevent contamination of ground and surface water in watersheds where these resources may be abstracted for drinking or used for recreation. For SWPP the hazards within a watershed that could contribute to water contamination are identified together with the pathways that link them to the water resource. In rural areas, farms are significant potential sources of pathogens. A risk-based index can be used to support the assessment of the potential for contamination following guidelines on safety and operational efficacy of processes and practices developed as beneficial approaches to agricultural land management. Evaluation of the health risk for a target population requires knowledge of the strength of the hazard with respect to the pathogen load (mass Â concentration). Manure handling and on-site wastewater treatment systems form the most important hazards, and both can comprise confined and unconfined source elements. There is also a need to understand the modification of pathogen numbers (attenuation) together with characteristics of the established pathways (surface or subsurface), which allow the movement of the contaminant species from a source to a receptor (water source). Many practices for manure management have not been fully evaluated for their impact on pathogen survival and transport in the environment. A key component is the identification of potential pathways of contaminant transport. This requires the development of a suitable digital elevation model of the watershed for surface movement and information on local groundwater aquifer systems for subsurface flows. Both require detailed soils and geological information. The pathways to surface and groundwater resources can then be identified. Details of land management, farm management practices (including animal and manure management) and agronomic practices have to be obtained, possibly from questionnaires completed by each producer within the watershed. To confirm that potential pathways are active requires some microbial source tracking. One possibility is to identify the molecular types of Escherichia coli present in each hazard on a farm. An essential part of any such index is the identification of mitigation strategies and practices that can reduce the magnitude of the hazard or block open pathways. r

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“…Several studies have provided microbial estimates of the NH 4 + and NO 2 oxidiser populations in poultry manure (Nodar et al, 1990a;1990b). Nodar et al (1990a) indicated that most of the bacteria in poultry manure were facultative, proteolytic, ammonificant, and cellulolytic anaerobes, and the population of denitrifiers was relatively high, whereas NH 4 + and NO 2 oxidisers were low.…”

Section: Microbial Activities and Degradation Of Uric Acid In Poultrymentioning

confidence: 99%

Enhancement of microbial nitrification to reduce ammonia emission from poultry manure: a review

Salim

Patterson

Ricke

et al. 2014

World's Poultry Science Journal

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Ammonia (NH 3 ) emissions from poultry farming operations have become a crucial concern due to their potential adverse effects on performance, birds and human health, and the environment. Due to genetic improvements, current commercial poultry require high quality balanced nutrition to maintain their rapid growth and production. Amino acids are components of protein nutrition that greatly influence the growth of the birds, and methionine is the first limiting essential amino acid in the high protein diets of poultry. However, excess or misuse of amino acid supplementation to poultry diets increases nitrogen (N) excretion and emissions to the environment. Currently, there are limited numbers of research publications regarding NH 3 emissions from poultry manure, and few of them address manure enhancement by microbial nitrification. Therefore, the aim of this review is to evaluate the potential of soil nitrifying bacteria to reduce NH 3 volatilisation and enhance N retention in poultry manure. This review presents the current status of knowledge regarding soil nitrifying bacteria, NH 3 nitrification, and summarises the strategies to enhance microbial nitrification of poultry manure, and the environmental ramifications when using different techniques to control NH 3 emissions. In spite of the fact that there are few research studies on reducing NH 3 volatilisation through nitrification, it has been concluded that nitrification would be a sustainable method for mitigating N excretion and NH 3 emission from poultry; however, further research is needed to identify the proper nitrifying bacteria to enhance microbial nitrification.

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Microbial composition of poultry excreta

Cited by 27 publications

References 19 publications

Impact of a microbial-mineral biopreparation on microbial community and deodorization of manures

Impact of a microbial-mineral biopreparation on microbial community and deodorization of manures

Development of a risk-based index for source water protection planning, which supports the reduction of pathogens from agricultural activity entering water resources

Enhancement of microbial nitrification to reduce ammonia emission from poultry manure: a review

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