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UNCONSCIOUSNESS ASSESSMENT THROUGH ELECTROENCEPHALOGRAFY (EEG), IN THE PROCESS OF STUNNING, FOR ElECTRONARCOSIS, PERCUSSION AND ANESTHESIA FOR HUMANE SLAUGHTER OF NILE TILAPIA

Grant number: 17/15364-9
Support Opportunities:Scholarships in Brazil - Doctorate
Start date: October 01, 2017
End date: November 05, 2020
Field of knowledge:Agronomical Sciences - Animal Husbandry - Animal Production
Principal Investigator:Elisabete Maria Macedo Viegas
Grantee:Daniel Santiago Rucinque Gonzalez
Host Institution: Faculdade de Zootecnia e Engenharia de Alimentos (FZEA). Universidade de São Paulo (USP). Pirassununga , SP, Brazil
Associated scholarship(s):18/01584-0 - Assessment of unconsciousness by Electroencephalography - EEG in the process of slaughter in Atlantic cod, BE.EP.DR

Abstract

Recently, the World Organization for Animal Health - OIE, through the Aquatic Animal Code, set recommendations for the welfare of farmed fish, mainly in transport, stunning and killing for human consumption. However, traditional methods of killing fish are not considered humanitarian. For example, immersion in ice or ice water is known with a method which causes a high degree of suffering as it does not cause an immediate loss of pain sensitivity. Hypothermia or immersion in ice water is used by most slaughterhouses in pre-slaughtering fish in Brazil. To consider slaughtering as humanitarian, the animal must undergo two processes: the first is the stunning leading to the loss of consciousness and then the bleeding to induce death. Thus, stunning is applied to induce unconsciousness and insensitivity to pain, which should be of sufficient duration to ensure death by bleeding. Electrical and percussive stunning are considered the most acceptable methods for fish stunning based on welfare and meat quality precepts. Currently, the best method to determine fish unconsciousness during the slaughter process is through Electroencephalography (EEG). In Brazil, studies on the use of EEG to assess fish unconsciousness during the slaughter process are absent. In this sense, the objective of this work is to determine the unconsciousness in Nile tilapia through Electroencephalography (EEG) in the process of stunning for electrical stunning, percussion and anesthesia pre-slaughter.

News published in Agência FAPESP Newsletter about the scholarship:
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VEICULO: TITULO (DATA)
VEICULO: TITULO (DATA)

Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
RUCINQUE, DANIEL SANTIAGO; FERREIRA, PEDRO FONTALVA; PEDROSO LEME, PAULO ROBERTO; LAPA-GUIMARAES, JUDITE; MACEDO VIEGAS, ELISABETE MARIA. Ocimum americanum and Lippia alba essential oils as anaesthetics for Nile tilapia: Induction, recovery of apparent unconsciousness and sensory analysis of fillets. Aquaculture, v. 531, . (17/15364-9, 18/23317-3)
Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
GONZALEZ, Daniel Santiago Rucinque. Unconsciousness assessment through electroencephalography (EEG), in the process of stunning for humane slaughter of Nile tilapia. 2021. Doctoral Thesis - Universidade de São Paulo (USP). Faculdade de Zootecnica e Engenharia de Alimentos (FZE/BT) Pirassununga.