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Tracing heavy metals in ‘swine manure - maggot - chicken’ production chain

التفاصيل البيبلوغرافية
العنوان: Tracing heavy metals in ‘swine manure - maggot - chicken’ production chain
المؤلفون: Wanqiang Wang, Wenjuan Zhang, Xiaoping Wang, Chaoliang Lei, Rui Tang, Feng Zhang, Qizhi Yang, Fen Zhu
المصدر: Scientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
بيانات النشر: Nature Portfolio, 2017.
سنة النشر: 2017
المجموعة: LCC:Medicine
LCC:Science
مصطلحات موضوعية: Medicine, Science
الوصف: Abstract With the development of large-scale livestock farming, manure pollution has drawn much attention. Conversion by insects is a rapid and cost-effective new method for manure management. Swine manure conversion with maggots (Musca domestica larvae) has developed, and the harvested maggots are often used as animal feed. However, the flow of heavy metals from manure to downstream processes cannot be ignored, and therefore, heavy metal content was measured in untreated raw manure, maggot-treated manure, harvested maggots and maggot-eating chickens (chest muscle and liver) to evaluate potential heavy metal risks. The levels of zinc, copper, chromium, selenium, cadmium and lead had significant differences between untreated raw manure and maggot-treated manure. The concentrations of all detected heavy metals, except for cadmium and selenium, in maggots met the limits established by the feed or feed additive standards of many countries. The bioaccumulation factor (BAF) of heavy metals decreased with the increase of the maggot instar, indicating that heavy metals were discharged from the bodies of maggots with the growth of maggots. Also, the contents of overall heavy metals in chickens fed harvested maggots met the standards for food. In conclusion, regarding heavy metals, it is eco-safe to use maggots in manure management.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 2045-2322
Relation: https://doaj.org/toc/2045-2322
DOI: 10.1038/s41598-017-07317-2
URL الوصول: https://doaj.org/article/73d7e8001729467798d4ef8d5a6f77e1
رقم الأكسشن: edsdoj.73d7e8001729467798d4ef8d5a6f77e1
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:20452322
DOI:10.1038/s41598-017-07317-2