livestock Articles
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A four‐country ring test of nontarget effects of ivermectin residues on the function of coprophilous communities of arthropods in breaking down livestock dung
By degrading the dung of livestock that graze on pastures, coprophilous arthropods accelerate the cycling of nutrients to maintain pasture quality. Many veterinary medicinal products, such as ivermectin, are excreted unchanged in the dung of treated livestock. These residues can be insecticidal and may reduce the function (i.e., dung‐degradation) of the coprophilous community. In the present ...
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Validation of a standard field test method in four countries to assess the toxicity of residues in dung of cattle treated with veterinary medical products
Registration of veterinary medical products (VMPs) includes the provision that field tests may be required to assess potential non‐target effects associated with the excretion of product residues in dung of treated livestock (Phase II, Tier B testing). However, regulatory agencies provide no guidance on the format of these tests. Here, we report development of a standardized field test method ...
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Study on veterinary and human antibiotics in raw and treated water from a French basin
The aims of this work are to evaluate the presence of antibiotics in surface waters in a French water basin, where the presence of livestock is relatively important, and to understand the behaviour of antibiotics in drinking water treatment plants (DWTPs). Two sampling sites were chosen because of their livestock density and the presence of DWTPs in areas where urban activities are different. ...
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Antibiotics in groundwater under locations with high livestock density in Germany
Antibiotics are deployed in large quantities both in human and in veterinary medicine. Studies show that antibiotic residues occur in the environment (e.g. soil and surface waters). In some cases they were also detected in ground and drinking water. However, the degree of groundwater pollution by antibiotic residues from livestock farming is unknown. Therefore, the federal environment agency ...
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Production technology of bio organic fertilizer and factors affecting safety
We often use bio organic fertilizer in agricultural planting, and organic waste is its processing raw material. Chicken manure and crop straw as the main raw materials, after fermentation, they are further made into high-quality organic fertilizer products by drum granulation. The fermentation process can decompose chemical pesticide and chemical fertilizer residues, improve fertilizer quality ...
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