Current Science

Guilherme Malafaia ¹, Dieferson da Costa Estrela ², Wellington Alves Mizael da Silva ¹, Abraao Tiago Batista Guimaraes ¹, Bruna de Oliveira Mendes ¹, Aline Sueli de Lima Rodrigues ¹, Ivandilson Pessoa Pinto de Menezes ³

Affiliations
1 Laboratorio de Pesquisas Biologicas, Instituto Federal Goiano – Campus Urutai, GO, BR
2 Programa de Pos-Graduacao em Biodiversidade Animal, Universidade Federal de Goias – Campus Samambaia, GO, BR
3 Laboratorio de Genetica e Biologia Molecular, Instituto Federal Goiano – Campus Urutai, GO, BR

Abstract

Growing food in unconventional systems such as those using irrigation with domestic wastewater and the use of potentially toxic waste has generated resistance from producers and consumers. Here, we evaluate the possible physical and biochemical damage to Swiss mice fed for 13 weeks with corn produced in soil containing tannery sludge vermicompost and irrigated with wastewater from domestic sewage. The corn was offered as an additional food to standard rodent chow at a daily concentration of 15 g/kg of body mass. The results showed no changes in body weight of the animals during the experimental period. The consumption of grain and weight gain of the animals was stable. The total protein, albumin, globulin and alkaline phosphatase levels did not differ among experimental groups. In addition, macroscopic analysis of the liver of the animals showed no sign of injury or disorders. Thus, we preliminarily conclude that the maize produced in this way is innocuous to animals. However, further studies are needed to evaluate other variables not measured in the present study which can contribute to food security and the nutrition of the corn thus produced.

Keywords

Agro-industrial Waste, Animal Models, Toxicity, Wastewater.

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