da Cruz Ferreira Júnior, Helvio
da Silva, Diego Ladeira
de Carvalho, Bruno Reis
de Oliveira, Haniel Cedraz
Cunha Lima Muniz, Jorge
Junior Alves, Warley
Eugene Pettigrew, James
Eliza Facione Guimarães, Simone
da Silva Viana, Gabriel
Hannas, Melissa Izabel
Funding for this research was provided by:
Alltech, Inc.
Fundação de Amparo à Pesquisa do Estado de Minas Gerais
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
Instituto Nacional de Ciência e Tecnologia de Ciência Animal
Article History
Received: 27 January 2022
Accepted: 10 May 2022
First Online: 13 June 2022
Declarations
:
: All animal care and use procedures were approved by the Animal Care and Use Committee of the Universidade Federal de Viçosa (CEUAP, UFV, Viçosa, Brazil) under protocol n.<sup>0</sup> 111/2014, prior to the beginning of the trials, including euthanasia by cervical deslocation, where all efforts were made to minimize suffering. Birds were not anesthetized prior to euthanasia. The birds used in the current research were obtained from a local commercial hatchery (Rivelle, Mateus Leme, Minas Gerais State, Brazil). The hatchery is a facility which unique purpose is to obtain profit from the sale of broiler chicks, which may be used either for research or commercial purposes.
: Not applicable.
: JEP contracts with Alltech, the supplier of the copper proteinate and organic minerals used in this experiment, to supervise this research. The other authors declare that they have no competing interests.