Comparative Study of Chronic Toxicity ofHerbicides used in South America Using a Model of Cyprinus carpio

BLASCO PEDREROS MP; ÁLVAREZ MA; DEVIA C; ENRIZ RD; GIANNINI FA.

Environmental Science: An Indian Journal

Trade Science Inc.

Año: 2018 vol. 14 p. 173 - 179

0974-7451

Fish are a reliable biological model to measure the environmental impact of different substances. Argentina is an agriculturalproducer country with its main crops being grains such as soybeans, wheat and corn; To increase the yield of the crops a largeamount of herbicides are used. Among these the most used has been glyphosate, but others such as 2,4D and triazine are also used.There are different biomarkers in fish used to evaluate the toxicity of different substances, among them hepatic enzymes (GPTandGOT), muscle enzymes (AchE) as well as cell morphology (red blood cells) are the most used. We carried in this work a chronictoxicity study exposing to sublethal doses of the herbicides to young species of Cyprius carpio for a period of 21 days. Next wemeasure different biomarkers such as liver enzymes, muscle and cell morphology (red blood cells). The results obtained showedthat the three herbicides cause alterations in the values of the liver enzymes. Atrazine also affects the levels of acetylcholinesterase,whereas atrazine and glyphosate produce alterations in the morphology of red blood cells.