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Asian-Australas J Anim Sci > Accepted Articles
DOI: https://doi.org/10.5713/ajas.18.0070    [Accepted] Published online April 25, 2018.
Importance of the knowledge of pathological processes for risk-based inspection in pig slaughterhouses (Study of 2002 to 2016).
Pedro Sánchez1, Francisco J Pallares1, Miguel A Gómez1, Antonio Bernabé1, Serafin Gómez1, Juan Seva1,* 
Department of Comparative Anatomy and Pathological Anatomy, Murcia, Spain
Correspondence:  Juan Seva, Tel: 616591606, Fax: 91868884147, Email: jseva@um.es
Received: 19 January 2018   • Revised: 27 March 2018   • Accepted: 18 April 2018
Objective: The objective of this work was to determine the prevalence of the pathologies that caused the condemnation of pig carcasses in an area of intensive pig farming and Mediterranean climatology and to evaluate their influence in a risk-based inspection procedure for slaughterhouses. Material and methods: A retrospective observational investigation was carried out from 2002 to 2016 into the pathological processes that caused the condemnation of pig carcasses in a slaughterhouse from South-eastern Spain. The seasonal effect on the causes of condemnation carcass was reported. Negative binomial model were used to evaluate the effect of season on the rate of antemortem rejections and post-mortem condemnations. Histopathological examinations were performed to confirm the diagnosis.


The risk of antemortem rejections (0.0564%) was significantly greater in summer (RR= 1.57). Autumn was associated with higher rate (RR=1.69) of the total postmortem condemnations (0.1046%). Significally higher rates of pronounced anaemia (0.0111 %) were observed in summer (RR=3.20). The main causes of anaemia were observed gastroesophageal ulcers and haemorrhagic enteropathies. Significantly highest risk of erysipelas (0.0074%) were observed in autumn (RR= 5.485). About other zoonosis, only eight cases (0.0013%) of carcasses were declared unfit due to tuberculosis lesions. Porcine muscular cysticercosis was not detected. Nevertheless, nonspecific causes such as generalized infections and emaciation represented the half of the condemned carcasses (50.90%).


The pathologies leading to the condemnation of carcasses in this study can be considered representative of the pathologies that affect the pig population from a region with a high intensive production and Mediterranean climatology because this slaughterhouse receives a lot of animals from many farms of different size from a high intensive pig production zone (Mediterranean region). Increased knowledge of environmental factors that may foment the appearance of the diseases is essential for implementing inspection programs based on risk assessment in pig´s slaughterhouses.
Keywords: Pathological processes; slaughterhouse; risk-based inspections; pigs
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