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Potential of Biological Processes to Eliminate Antibiotics in Livestock Manure: An Overview.

Massé DI, Saady NM, Gilbert Y - Animals (Basel) (2014)

Bottom Line: Generally, antibiotics are degraded during composting > anaerobic digestion > manure storage > soil.More research is required to determine the kinetics of antibiotics' metabolites degradation during anaerobic digestion.Further investigations are required to assess the degradation of antibiotics during psychrophilic anaerobic digestion.

View Article: PubMed Central - PubMed

Affiliation: Dairy and Swine Research and Development Centre, Agriculture and Agri-Food Canada, Sherbrooke, Quebec, J1M 0C8, Canada. daniel.masse@agr.gc.ca.

ABSTRACT
Degrading antibiotics discharged in the livestock manure in a well-controlled bioprocess contributes to a more sustainable and environment-friendly livestock breeding. Although most antibiotics remain stable during manure storage, anaerobic digestion can degrade and remove them to various extents depending on the concentration and class of antibiotic, bioreactor operating conditions, type of feedstock and inoculum sources. Generally, antibiotics are degraded during composting > anaerobic digestion > manure storage > soil. Manure matrix variation influences extraction, quantification, and degradation of antibiotics, but it has not been well investigated. Fractioning of manure-laden antibiotics into liquid and solid phases and its effects on their anaerobic degradation and the contribution of abiotic (physical and chemical) versus biotic degradation mechanisms need to be quantified for various manures, antibiotics types, reactor designs and temperature of operations. More research is required to determine the kinetics of antibiotics' metabolites degradation during anaerobic digestion. Further investigations are required to assess the degradation of antibiotics during psychrophilic anaerobic digestion.

No MeSH data available.


Related in: MedlinePlus

Quantities of antibiotics consumed by livestock in animal feed (Data from [7,8,9,11]).
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animals-04-00146-f001: Quantities of antibiotics consumed by livestock in animal feed (Data from [7,8,9,11]).

Mentions: Antibiotic consumption in livestock industry in USA, European countries and China is given in Figure 1. Notice that in the USA, for example, the quantity of antibiotics used in 2004 is 108 times that used in 1950. This is partially because the recommended levels of growth-promoting antibiotics in poultry and pig diets increased from 4 ppm for the narrow spectrum and 10 ppm for the broad-spectrum antibiotics in 1950s to 200 ppm nowadays. About 91% of livestock operations in the USA use 11.2 million kg antibiotics sold over-the-counter as growth promoters annually [6,7,8,9,10]. Antibiotics fed to animals end up in manure and eventually in the environment.


Potential of Biological Processes to Eliminate Antibiotics in Livestock Manure: An Overview.

Massé DI, Saady NM, Gilbert Y - Animals (Basel) (2014)

Quantities of antibiotics consumed by livestock in animal feed (Data from [7,8,9,11]).
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4494381&req=5

animals-04-00146-f001: Quantities of antibiotics consumed by livestock in animal feed (Data from [7,8,9,11]).
Mentions: Antibiotic consumption in livestock industry in USA, European countries and China is given in Figure 1. Notice that in the USA, for example, the quantity of antibiotics used in 2004 is 108 times that used in 1950. This is partially because the recommended levels of growth-promoting antibiotics in poultry and pig diets increased from 4 ppm for the narrow spectrum and 10 ppm for the broad-spectrum antibiotics in 1950s to 200 ppm nowadays. About 91% of livestock operations in the USA use 11.2 million kg antibiotics sold over-the-counter as growth promoters annually [6,7,8,9,10]. Antibiotics fed to animals end up in manure and eventually in the environment.

Bottom Line: Generally, antibiotics are degraded during composting > anaerobic digestion > manure storage > soil.More research is required to determine the kinetics of antibiotics' metabolites degradation during anaerobic digestion.Further investigations are required to assess the degradation of antibiotics during psychrophilic anaerobic digestion.

View Article: PubMed Central - PubMed

Affiliation: Dairy and Swine Research and Development Centre, Agriculture and Agri-Food Canada, Sherbrooke, Quebec, J1M 0C8, Canada. daniel.masse@agr.gc.ca.

ABSTRACT
Degrading antibiotics discharged in the livestock manure in a well-controlled bioprocess contributes to a more sustainable and environment-friendly livestock breeding. Although most antibiotics remain stable during manure storage, anaerobic digestion can degrade and remove them to various extents depending on the concentration and class of antibiotic, bioreactor operating conditions, type of feedstock and inoculum sources. Generally, antibiotics are degraded during composting > anaerobic digestion > manure storage > soil. Manure matrix variation influences extraction, quantification, and degradation of antibiotics, but it has not been well investigated. Fractioning of manure-laden antibiotics into liquid and solid phases and its effects on their anaerobic degradation and the contribution of abiotic (physical and chemical) versus biotic degradation mechanisms need to be quantified for various manures, antibiotics types, reactor designs and temperature of operations. More research is required to determine the kinetics of antibiotics' metabolites degradation during anaerobic digestion. Further investigations are required to assess the degradation of antibiotics during psychrophilic anaerobic digestion.

No MeSH data available.


Related in: MedlinePlus