Navigation Links
New insights into the fate of antiparasitics in manure and manured soils
Date:12/4/2007

In recent years, there has been growing interest in the question, if the entry of veterinary medicinal products (VMP) into soils via manure application is of environmental relevance. In a recent study, published in the November issue of the journal CLEAN, Kreuzig and co-workers now focused on the so far less investigated benzimidazole antiparasitics, adding valuable data to the so far available data set on fate and behavior of veterinary medicinal products in manure and manured soils.

An innovative experimental design for laboratory tests on VMP has been developed in order to simulate the real entry route of VMP into soil environments already under laboratory conditions. Degradation tests of VMP as 14C-labeled radiotracers in manures were conducted. On this basis, test manures containing 7-day aged VMP residues were prepared and then applied in laboratory batch tests to study degradation and sorption of VMP in manured soils. In further tests, the differentiation of microbial, chemical and photoinduced degradation were taken into account. Finally, test-plot experiments were performed under field conditions to monitor the transferability of the laboratory data to field conditions.

The benzimidazole antiparasitics flubendazole and fenbendazole mainly remained extractable in pig manure and soil samples. Antibiotics like sulfonamides, in contrast, rapidly formed non-extractable residues. Flubendazole was found unchanged while fenbendazole was accompanied by corresponding metabolites. Due to their slow degradation in pig manure, the manure storage is not considered to reduce substantially the environmental exposure. As shown by the sorption tests, both benzimidazoles did not fulfill the criteria of potential leachers. Finally, the degradation tests showed the dependence of the metabolic fate on the microbial activity in soil and on the test-manure application. These aspects, therefore, emphasized that the consideration of manure effects already under laboratory conditions supports a better understanding of the environmental fate of VMP under field conditions.


'/>"/>

Contact: Vera Koester
vkoester@wiley-vch.de
0049-620-160-6519
Wiley-Blackwell
Source:Eurekalert

Related biology news :

1. Stomach stem cell discovery could bring cancer insights
2. KGI professor contributes new insights on jumping genes
3. Study involving more than 100 scientists provides new insights on green algae
4. New insights into how lasers cut flesh
5. Tumor genome analysis unveils new insights into lung cancer
6. Manure management reduces levels of antibiotics and antibiotic resistance genes
7. CU researcher engineers sorghum that grows in poisonous soils
8. Chemical compound present in detergents produce bacteria alterations in agricultural soils
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/4/2017)... 4, 2017  GCE Solutions, a global clinical research organization (CRO), ... anonymization solution on October 4, 2017. Shadow is designed to assist ... with policy 0070 of the European Medicines Agency (EMA) in meeting ... ... ...
(Date:6/30/2017)... 2017 Today, American Trucking Associations announced ... face and eye tracking software, became the newest ... "Artificial intelligence and advanced sensing ... a driver,s attentiveness levels while on the road.  ... detect fatigue and prevent potential accidents, which could ...
(Date:5/16/2017)... 16, 2017  Veratad Technologies, LLC ( www.veratad.com ), ... and identity verification solutions, announced today they will participate ... May 15 thru May 17, 2017, in ... Trade Center. Identity impacts the lives ... today,s quickly evolving digital world, defining identity is critical ...
Breaking Biology News(10 mins):
(Date:10/11/2017)... ... October 11, 2017 , ... ... will be hosting a Webinar titled, “Pathology is going digital. Is your lab ... digital pathology adoption best practices and how Proscia improves lab economics and realizes ...
(Date:10/11/2017)... ... October 11, 2017 , ... A new study published in ... and fresh in vitro fertilization (IVF) transfer cycles. The multi-center matched ... , After comparing the results from the fresh and frozen transfer cohorts, the ...
(Date:10/10/2017)... (PRWEB) , ... October 10, 2017 , ... ... Science Center’s FirstHand program has won a US2020 STEM Mentoring Award. Representatives of ... award for Excellence in Volunteer Experience from US2020. , US2020’s mission is to ...
(Date:10/10/2017)... , ... October 10, 2017 , ... ... and business process optimization firm for the life sciences and healthcare industries, announces ... conference in San Francisco. , The presentation, “Automating GxP Validation for Agile Cloud ...
Breaking Biology Technology: