Article (Scientific journals)
Vermiculture in animal farming: A review on the biological and nonbiological risks related to earthworms in animal feed
Byambas, Patrick; Hornick, Jean-Luc; Marlier, Didier et al.
2019In Cogent Environmental Science, 5 (1591328), p. 2-12
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Keywords :
earthworms; intoxication; intoxination
Abstract :
[en] Earthworms are part of natural diet of some farm animals such as poultry. They are a protein source. Unfortunately, earthworms can accumulate some toxic substances occurring in the soil and animals can be contaminated through feed containing these earthworms. The biological and nonbiological risks related to earthworms depend on the type of substrates through which they live. Earthworms are usually contaminated in polluted soil by various types of toxic and poisonous substance. The most common toxic compounds are heavy metals, pesticides and microbial toxins, which can lead to toxic or poisonous contamination of earthworms and then animals, such as poultry, fish and swine, through feeding. This risk cannot be identified in earthworm body without its destruction. But according to toxic substance targeted, there are many ways of risks detection, in soil, earthworms and animals. To protect farm animals, different technics are available. To limit heavy metal contamination, soil should be analyzed before collecting earthworms. Many treatments are available. By heating at 80°C for 2–4 h, microorganisms can be destroyed. Nevertheless, this technique needs to be adapted with certain types of bacteria whose enterotoxin withstands temperatures of 100°C for 30 min, or more. To limit all these risks, the use of earthworms reared from vermiculture can help to prevent contamination of poultry through feeding.
Disciplines :
Environmental sciences & ecology
Author, co-author :
Byambas, Patrick ;  Université de Liège - ULiège > Doct. sc. vété. (paysage)
Hornick, Jean-Luc  ;  Université de Liège - ULiège > Dpt. de gestion vétérinaire des Ressources Animales (DRA) > Nutrition animale en milieu tropical
Marlier, Didier  ;  Université de Liège - ULiège > Dép. clinique des animaux de compagnie et des équidés (DCA) > Médecine des oiseaux, des lagomorphes et des rongeurs
Francis, Frédéric  ;  Université de Liège - ULiège > Département GxABT > Gestion durable des bio-agresseurs
Language :
English
Title :
Vermiculture in animal farming: A review on the biological and nonbiological risks related to earthworms in animal feed
Alternative titles :
[en] Vermiculture et volailles : Synthèse bibliographique sur les risques toxiques et les intoxinations liées à l’utilisation de vers de terre dans l’alimentation des volailles.
Publication date :
10 March 2019
Journal title :
Cogent Environmental Science
eISSN :
2331-1843
Publisher :
Taylor & Francis Group, United Kingdom
Volume :
5
Issue :
1591328
Pages :
2-12
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 25 May 2019

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