Effect of copper and lead on sperm Motility parameters of Schizothorax zarudnyi

Naghibi, Masume (2013) Effect of copper and lead on sperm Motility parameters of Schizothorax zarudnyi. Masters thesis, University of Zabol.

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Sperm motility is one of the indicators that are used in sperm quality assessment. Thus this study was conducted to determine the sensitivity ratio of Schizothorax zarudnyi spermatozoa at different concentrations of heavy metals such as copper and lead. To this purpose, Wild broods of snow trout (male 1150.0±19.57 g) were caught in the broods' pond and transported to Zahak hatchery for artificial spawning. Then were selected 4 snow trout and their Spermatozoa were exposed to 0, 0.01, 0.1, 1, 10 and 100 mg/L of PbCl2 and CuCl2 and sperm motility percentage and total duration times were compared. Sperm motility parameters decreased significantly with increase of pollutant concentration. But even lethal effects were not at a concentration until 100 mg/L. No significant differences were observed in effect of copper and lead with same concentration. However the obtained results showed that lead caused a more significant decrease in sperm mortality to compare of the copper. Over time, with decrease of percentage off motile spermatozoa, they were still sensitive to low concentration. So that the time in which only 10% or 40% of the sperm are motile, in contact with the concentration of 0.01 mg /L copper and lead were significantly different from the control group. While the time in which 80% of sperm is moving the difference was less than the control group.

Item Type: Thesis (Masters)
Uncontrolled Keywords: Schizothorax zarudnyi, Heavy metal, Sperm motility, Copper and Lead
Subjects: S Agriculture > SH Aquaculture. Fisheries. Angling
Depositing User: admin admin1 admin2
Date Deposited: 26 Apr 2016 06:55
Last Modified: 26 Apr 2016 06:55
URI: http://eprints.uoz.ac.ir/id/eprint/524

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