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

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...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Wanqiang Wang, Wenjuan Zhang, Xiaoping Wang, Chaoliang Lei, Rui Tang, Feng Zhang, Qizhi Yang, Fen Zhu
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/73d7e8001729467798d4ef8d5a6f77e1
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:73d7e8001729467798d4ef8d5a6f77e1
record_format	dspace
spelling	oai:doaj.org-article:73d7e8001729467798d4ef8d5a6f77e12021-12-02T15:05:26ZTracing heavy metals in ‘swine manure - maggot - chicken’ production chain10.1038/s41598-017-07317-22045-2322https://doaj.org/article/73d7e8001729467798d4ef8d5a6f77e12017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-07317-2https://doaj.org/toc/2045-2322Abstract 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.Wanqiang WangWenjuan ZhangXiaoping WangChaoliang LeiRui TangFeng ZhangQizhi YangFen ZhuNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Wanqiang Wang Wenjuan Zhang Xiaoping Wang Chaoliang Lei Rui Tang Feng Zhang Qizhi Yang Fen Zhu Tracing heavy metals in ‘swine manure - maggot - chicken’ production chain
description	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.
format	article
author	Wanqiang Wang Wenjuan Zhang Xiaoping Wang Chaoliang Lei Rui Tang Feng Zhang Qizhi Yang Fen Zhu
author_facet	Wanqiang Wang Wenjuan Zhang Xiaoping Wang Chaoliang Lei Rui Tang Feng Zhang Qizhi Yang Fen Zhu
author_sort	Wanqiang Wang
title	Tracing heavy metals in ‘swine manure - maggot - chicken’ production chain
title_short	Tracing heavy metals in ‘swine manure - maggot - chicken’ production chain
title_full	Tracing heavy metals in ‘swine manure - maggot - chicken’ production chain
title_fullStr	Tracing heavy metals in ‘swine manure - maggot - chicken’ production chain
title_full_unstemmed	Tracing heavy metals in ‘swine manure - maggot - chicken’ production chain
title_sort	tracing heavy metals in ‘swine manure - maggot - chicken’ production chain
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/73d7e8001729467798d4ef8d5a6f77e1
work_keys_str_mv	AT wanqiangwang tracingheavymetalsinswinemanuremaggotchickenproductionchain AT wenjuanzhang tracingheavymetalsinswinemanuremaggotchickenproductionchain AT xiaopingwang tracingheavymetalsinswinemanuremaggotchickenproductionchain AT chaolianglei tracingheavymetalsinswinemanuremaggotchickenproductionchain AT ruitang tracingheavymetalsinswinemanuremaggotchickenproductionchain AT fengzhang tracingheavymetalsinswinemanuremaggotchickenproductionchain AT qizhiyang tracingheavymetalsinswinemanuremaggotchickenproductionchain AT fenzhu tracingheavymetalsinswinemanuremaggotchickenproductionchain
_version_	1718388839026786304

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

Ejemplares similares