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Poultry Preslaughter Operations in Hot Environments: The Present Knowledge and the Next Steps Forward.
Animals (Basel)
October 2024
Biometeorology Study Group (GEBIOMET), Universidade Tecnológica Federal do Paraná (UTFPR), Estrada para Boa Esperança, km 04, Comunidade São Cristóvão, Dois Vizinhos 85660-000, Paraná, Brazil.
Poultry production faces significant challenges, including high feed prices, diseases, and thermal stress, which impact broiler welfare and productivity. Despite advances in cooling technologies and ventilation, preslaughter operations still lead to considerable losses. This review highlights the need for the improved management of thermal environments and animal logistics.
View Article and Find Full Text PDFPre-Slaughter Stunning Methods Influence the Meat Quality of Fillets.
Animals (Basel)
April 2024
Departamento de Medicina Veterinária e Agronegócio, Centro Universitário São Lucas, UniSL JPR AFYA, Ji-Paraná 76907-524, Brazil.
The aim of this study was to evaluate the influence of different stunning methods on the meat quality of fillets from fish farming. A total of 48 specimens of in the weight class 11.1 to 14.
View Article and Find Full Text PDFElectronarcosis of Nile tilapia (Oreochromis niloticus): Effects on Dynamic Physiological Balance and Meat Quality.
Recent Adv Food Nutr Agric
April 2024
Universidade Estadual do Oeste do Paraná. Rua da Faculdade, 354. Centro de Engenharias e Ciências Exatas. Toledo/PR. Brazil.
Introduction: Electronarcosis is the most commonly used stunning method for large animals, but its consequences in tilapia still need to be evaluated. The aim of the study was to evaluate the application of electronarcosis in the pre-slaughter stunning of Nile tilapia (Oreochromis ni-loticus) and verify its effects on dynamic physiological balance and meat quality.
Methods: Nile tilapia specimens, totaling 184, with an average weight of 247.
A PRELIMINARY STUDY OF INTRINSIC AND EXTRINSIC FACTORS INFLUENCING INTRAOCULAR PRESSURE IN BROOK TROUT ().
J Zoo Wildl Med
January 2021
the Département de sciences cliniques, Faculté de médecine vétérinaire, Université de Montréal, Saint-Hyacinthe, Quebec J2S 2M2, Canada.
Reference intervals of intraocular pressure (IOP) are poorly described in piscine species as the factors that may influence it. Rebound tonometry was used to measure IOP in 28 adult brook trout () anesthetized in a buffered solution of 60 mg/L tricaine methanesulfonate ( = 16) or restrained with electronarcosis ( = 12) at 16 mA. There was no significant effect of the eye side, sex, fish origin, and body weight, but IOP values were significantly higher with electronarcosis (mean ± SD: 16.
View Article and Find Full Text PDFAnimal welfare evaluation at slaughterhouses for pigs at the "Eje Cafetero" region in Colombia.
Meat Sci
February 2021
Specialization in Animal Welfare and Ethology, Uniagraria, Bogotá, Colombia.
Within the insensitization by electronarcosis and the bleeding processes performed at the pig's slaughterhouses, there are some factors that hinder the achievement of an adequate slaughter of these animals, being this a critical phase in which animal welfare must be guaranteed; the objective of this study was to evaluate and compare the efficiency of insensitization by electronarcosis and two types of bleeding direction (horizontal and vertical). Dependent variables were measured as indicators of animal welfare (absence of the corneal reflex, absence of reflex of sensitivity to painful stimuli, attempts to reinstatement or posture recovery and vocalization), after the stunning and bleeding process, in four slaughterhouses of national category in "Eje Cafetero", Colombia. The methodological approach included the binomial distribution, descriptive statistics, hypothesis testing and statistical significance.
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