[49,50]. In this study, the mean motility in goldfish was
higher (89.3%–93.1%) than the values obtained for rainbow
trout Oncorhynchus mykiss [44] broodstock (88.83%–
89.32%) and the 65% motility at 30 seconds after activation
in Perca fluviatilis [51]; this indicates that the appropriate
pH (9.0) and the ionic composition of activation solution
(osmolality of about 200 mOsm/kg) had conditions [52].
Nevertheless, it is clear that spermatozoa that are highly
motile will have a greater chance of fertilization. In most
farmed fish species, the motility life span is brief (approximately
1 minute), and accurate evaluation of the motility
characteristics can only be made using rapid and sensitive
methods. However, the duration of motility was high in
goldfish (111.8–128.8 seconds). In most freshwater species,
spermatozoa usually move for less than 2 minutes, and in
many cases, they are only highly active for less than 30
seconds [53]. This agrees with the values found in this work
for goldfish.
[49,50]. In this study, the mean motility in goldfish washigher (89.3%–93.1%) than the values obtained for rainbowtrout Oncorhynchus mykiss [44] broodstock (88.83%–89.32%) and the 65% motility at 30 seconds after activationin Perca fluviatilis [51]; this indicates that the appropriatepH (9.0) and the ionic composition of activation solution(osmolality of about 200 mOsm/kg) had conditions [52].Nevertheless, it is clear that spermatozoa that are highlymotile will have a greater chance of fertilization. In mostfarmed fish species, the motility life span is brief (approximately1 minute), and accurate evaluation of the motilitycharacteristics can only be made using rapid and sensitivemethods. However, the duration of motility was high ingoldfish (111.8–128.8 seconds). In most freshwater species,spermatozoa usually move for less than 2 minutes, and inmany cases, they are only highly active for less than 30seconds [53]. This agrees with the values found in this workfor goldfish.
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