effect of calcium and magnesium ions in the billard salt solution on sperm motility in rainbow trout (oncorhynchus mykiss, walbaum 1792)
نویسندگان
چکیده
background: there are different activating salt solutions for sperm induction of rainbow trout (oncorhynchus mykiss) under artificial spawning condition, although some uncertainties are associated with the performance. objectives: this study was conducted to consider the effects of different concentration of calcium and magnesium ions and change of ph in the billard salt solution on sperm motility of rainbow trout. methods: four-year old broodstocks (n=10) of rainbow trout were randomly selected and adapted to the same experimental condition for two weeks. experimental solutions were also prepared in triplicate by separately adding 1, 2, and 3 mmol calcium and magnesium to the billard solution. another three solutions were also prepared with ph adjustment from 9.0 in the billard solution to 8.0, 8.5, and 9.5. the broodstocks were then transported to the hatchery and artificially spawned. the collected sperm from all broodstocks were mixed for eliminating the effect of genetically differences between the fishes. finally, the rainbow trout sperm mobility in the experimental treatments was determined in triplicate and compared by the billard solution as the control treatment. results: sperm mobility of rainbow trout in all treatments was significantly more than the control (p
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عنوان ژورنال:
تحقیقات دامپزشکیجلد ۶۹، شماره ۳، صفحات ۲۱۹-۲۲۵
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