Eritroleucometria, bioquímica plasmática e sérica e histopatologia de pombas (Zenaida auriculata) submetidas à intoxicação experimental com metamidofós: validade da espécie como indicador de qualidade ambiental
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Data
2006-06-23
Autores
Guimarães, Fabiano Borba [UNESP]
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Universidade Estadual Paulista (Unesp)
Resumo
As aves, especialmente as sedentárias, têm sido utilizadas para a avaliação da qualidade do meio ambiente onde estão fixadas, mostrando-se valiosos bioindicadores. A pomba amargosa, Zenaida auriculata, pode ter uma promissora utilidade por espoliar lavouras onde sabidamente são utilizados diversos defensivos agrícolas, dentre eles os organofosforados. No entanto, dados a respeito do dano ocasionado na referida espécie de ave com organofosforados não se encontram disponíveis na literatura. Este estudo objetivou verificar a viabilidade do uso da pomba amargosa, Zenaida auriculata, como bioindicador de qualidade ambiental pela análise dos dados de eritroleucometria, bioquímica sérica e histopatologia. Para tanto, comparou-se dois grupos, um com 16 animais, intoxicado com metamidofós na dose de 8 mg/kg por via oral, e outro controle, com 8 animais, que recebeu apenas o veículo (salina). Todos os animais eram de vida livre e foram capturados no perímetro urbano da cidade de Jaboticabal, São Paulo. Os animais controle foram sacrificados todos no mesmo dia, e seus dados foram utilizados como padrão de normalidade. Os intoxicados foram acompanhados durante 21 dias, e divididos em 8 grupos com duas aves cada, o primeiro sendo sacrificado 12 horas após a intoxicação e os demais a cada 3 dias. Os dados constatados ou a relação entre estes mostraram que a Zenaida auriculata não é um modelo biológico válido para indicar a presença de organofosforados no ambiente.
Birds, especially the sedentary ones, have been used to evaluate the quality of the environment where they belong, proving to be valuable bioindicators. The Eared Dove, Zenaida auriculata, can have a promising utility since it spoils farmings where several agriculture defensives are used, such as the organophosphate compounds. However, there are no data available in the literature about the damage caused by this sort of chemical product. The goal of this study was to examine the feasibility of using the Eared Dove, Zenaida auriculata, as a bioindicator of environmental quality by the analysis of the data on erythroleucometry, seric biochemistry and histopathology. Therefore, two groups were compared, one having 16 animals, and orally intoxicated with methamidophos in 8mg/kg. Another group, with 8 animals, received only the vehicle (saline). All the animals were free and were captured in the city of Jaboticabal, in Sao Paulo State. All the control animals were sacrificed in the same date and their data were used as a normality pattern. The intoxicated ones were observed for 21 days and spread in 8 groups of two birds each. The first one was sacrificed 12 hours after the intoxication and the rest of them every 3 days. The data obtained and the relations between them showed that Zenaida auriculata is not a valid biological model for indicating the presence of organophosphate compounds in the environment.
Birds, especially the sedentary ones, have been used to evaluate the quality of the environment where they belong, proving to be valuable bioindicators. The Eared Dove, Zenaida auriculata, can have a promising utility since it spoils farmings where several agriculture defensives are used, such as the organophosphate compounds. However, there are no data available in the literature about the damage caused by this sort of chemical product. The goal of this study was to examine the feasibility of using the Eared Dove, Zenaida auriculata, as a bioindicator of environmental quality by the analysis of the data on erythroleucometry, seric biochemistry and histopathology. Therefore, two groups were compared, one having 16 animals, and orally intoxicated with methamidophos in 8mg/kg. Another group, with 8 animals, received only the vehicle (saline). All the animals were free and were captured in the city of Jaboticabal, in Sao Paulo State. All the control animals were sacrificed in the same date and their data were used as a normality pattern. The intoxicated ones were observed for 21 days and spread in 8 groups of two birds each. The first one was sacrificed 12 hours after the intoxication and the rest of them every 3 days. The data obtained and the relations between them showed that Zenaida auriculata is not a valid biological model for indicating the presence of organophosphate compounds in the environment.
Descrição
Palavras-chave
Ave, Zenaida auriculata, Metamidofós, Bioindicadores, Bioquímica sérica, Methamidophos, Seric biochemistry, birds
Como citar
GUIMARÃES, Fabiano Borba. Eritroleucometria, bioquímica plasmática e sérica e histopatologia de pombas (Zenaida auriculata) submetidas à intoxicação experimental com metamidofós: validade da espécie como indicador de qualidade ambiental. 2006. xiv, 45 f. Dissertação (mestrado) - Universidade Estadual Paulista, Faculdade de Ciências Agrárias e Veterinárias, 2006.