Ocorrência parasitaria em peixes de agua doce comercializados em Manaus, Amazonas, Brasil

Abstract

The fish is a protein of high value nutritional appreciated enough by the population manauara. When they took care during his conservation and handling they become essential for maintenance of the quality and prevention of zoonoses of parasitic origin. Given his food importance, this study aimed to report the parasitic incident and the quality of fishes marketed in Manaus AM. Acquired 47 samples of fresh fish in three places (Market of the Betânia, Mercado Municipal Adolpho Lisboa, and Oporto of the CEASA), for sensory analyses, chemical physical and parasitic, what were carried out in the Laboratory of Veterinary Anatomy of the IFAM Campus Manaus Eastern Zone, between August 2018 to July 2019. The fish is considered parasites were preserved in formol to 10% and identified through stereoscope. Health and quality of the fishes happened still an interview with objective questions to 25 market traders on the subject. 100% (25/25) finds the fish a healthy food; 32%(8/25) believes that the fish does not make equal ill to other animals; 44% (11/25) affirms that there is no possibility of transmission of diseases through the fish; 76% (19/25) understands that the veterinary doctor is important to guarantee the health and the quality of the fish; and 68% (17/25) affirmed to have interest in receiving materials on good practices of handling and conservation of the fish. In the analyses chemical physical, 42,5% (20/47) presented pH bigger than 7,0, and 100% (47/47) temperature between 14.2ºC to 20Cº. In the sensory analyses, 91,48% (43/47) presented at least an alteration in the form, color or odor, possibly made a list to the conservation and / to the storage in the collection places. The parasitic incident was positive in 12,7% (6/47) of the samples with 10,6% (5/47) for Acanthocephala sp., 0,6% (3/47) for examples of Colossoma macropomum and 0,4% (2/47) of Triportheus albus. In 0,2% (1/47), represented by a specimen of Semaprochilodus taeniurus, it found a trematódeo of the suborder Digenea, I live in this fish. Such trematódeos are between the important parasites of the medicine that can cause serious damages to the health, including the death, if the fish is consumed rawly. The chemical physical, sensory alterations, and parasitology found observed in this study they show that there is compromising of the quality and innocuity of the fish, so the confirmation of the parasitic incident indicates the possibility to have transmission of zoonoses. Before the results, there is suggested the realization of the most effective services of inspection and inspection, and also what are adopted better conditions of conservation and storage to guarantee the quality and innocuity of the fish marketed in markets of Manaus.