EFFECTS OF ROUNDUP ON HISTOPATHOLOGICAL CHANGES OF GONAD AND GONAD INDEX IN MALE RAINBOW TROUT (ONCHORHYNCHUS MYKISS) BREEDER IN TWO TIME PERIODS IN THE SOUTHERN CASPIAN SEA

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MOHAGHEGH E.; FAROKHROUZ M.; ZAMINI A.; YOUSEFI E.; TEHRANIFARD A.

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Journal: NEW TECHNOLOGIES IN AQUACULTURE DEVELOPMENT (JOURNAL OF FISHERIES) Year:2013 | Volume:6 | Issue:4 (24) Page(s): 51-58

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Title

EFFECTS OF ROUNDUP ON HISTOPATHOLOGICAL CHANGES OF GONAD AND GONAD INDEX IN MALE RAINBOW TROUT (ONCHORHYNCHUS MYKISS) BREEDER IN TWO TIME PERIODS IN THE SOUTHERN CASPIAN SEA

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THE CASPIAN SEAQ2

ONCHORHYNCHUS MYKISSQ2

GONADQ2

ROUNDUPQ2

Abstract

Evaluation of pathological effects resulting from levels lower than the lethal concentration of ROUNDUP on GONAD tissue and GONAD index of male breeders rainbow trout of south of THE CASPIAN SEA was conducted during the fall of 2011.Number of 120 fish with a average weight of 185 grams were exposed to 25%, 50%, and 75% of concentration of LC50 of ROUNDUP. Three treatments including 5, 10, and 15 ppm with a control group were established. Testing period, were considered in two periods of 5 and 10 days. GONAD tissue were sampled at the end of each period. Studies on the effects of estrogen-like compounds showed that these compounds affect fish GONAD tissue. The results showed that ROUNDUP affects the maturation of sexual cells in both trials but no significant difference was observed between them. In 75% of concentration of LC50, demolition and removal of large number of spermatogonia from spermatogenesis cycle finally led to reduced production of spermatozoa. In 25% and 50% of concentration of LC50, arrangement of lobules was irregular and less and more dispersed spermatogonia was observed in content of tubes. Primary spermatocytes (SPI) and secondary spermatocytes (SPII) were observed in form of cluster. In fact, there was no significant difference between 25% and 50% of concentration of LC50. The results also showed that GONAD index decreased in both trials from low to high concentrations compared with the control.

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APA: Copy

MOHAGHEGH, E., FAROKHROUZ, M., ZAMINI, A., YOUSEFI, E., & TEHRANIFARD, A.. (2013). EFFECTS OF ROUNDUP ON HISTOPATHOLOGICAL CHANGES OF GONAD AND GONAD INDEX IN MALE RAINBOW TROUT (ONCHORHYNCHUS MYKISS) BREEDER IN TWO TIME PERIODS IN THE SOUTHERN CASPIAN SEA. NEW TECHNOLOGIES IN AQUACULTURE DEVELOPMENT (JOURNAL OF FISHERIES), 6(4 (24)), 51-58. SID. https://sid.ir/paper/161714/en

Vancouver: Copy

MOHAGHEGH E., FAROKHROUZ M., ZAMINI A., YOUSEFI E., TEHRANIFARD A.. EFFECTS OF ROUNDUP ON HISTOPATHOLOGICAL CHANGES OF GONAD AND GONAD INDEX IN MALE RAINBOW TROUT (ONCHORHYNCHUS MYKISS) BREEDER IN TWO TIME PERIODS IN THE SOUTHERN CASPIAN SEA. NEW TECHNOLOGIES IN AQUACULTURE DEVELOPMENT (JOURNAL OF FISHERIES)[Internet]. 2013;6(4 (24)):51-58. Available from: https://sid.ir/paper/161714/en

IEEE: Copy

E. MOHAGHEGH, M. FAROKHROUZ, A. ZAMINI, E. YOUSEFI, and A. TEHRANIFARD, “EFFECTS OF ROUNDUP ON HISTOPATHOLOGICAL CHANGES OF GONAD AND GONAD INDEX IN MALE RAINBOW TROUT (ONCHORHYNCHUS MYKISS) BREEDER IN TWO TIME PERIODS IN THE SOUTHERN CASPIAN SEA,” NEW TECHNOLOGIES IN AQUACULTURE DEVELOPMENT (JOURNAL OF FISHERIES), vol. 6, no. 4 (24), pp. 51–58, 2013, [Online]. Available: https://sid.ir/paper/161714/en

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