Author(s): N. Thamizhselvi and K. Thirumathal

Abstract: The main aim of this work was to study the effect of environmental factors on the spermatological characteristics of C. carpio. The temperature, pH, alkalinity, total hardness, ammonia and nitrate negatively correlated with all sperm quality parameters of C. carpio. But dissolved oxygen exhibit positive relationship with all sperm quality parameters (semen volume, semen pH, duration of sperm motility, motility %, motility score, sperm density, live and dead cell %) of C. carpio and showed significant positive relationship with spermatocrit (r= 0.994, P<0.05). The water pH showed negative correlation with all sperm quality parameters of C. Carpio. Alkalinity showed significant negative correlation with volume of semen (-0.994) at P<0.05 level. Total hardness exhibit significant negative relationship with duration of motility (r= -0.989), % motility (r= -0.999), motility score (r= -0.989) and live cell percentage (r= -0.995) at P<0.05 level. Ammonia showed significant negative relationship at P<0.05 level with spermatocrit. Nitrate exhibit perfect negative correlation with motility score at P<0.01 level and showed significant correlation with live cell percentage at P<0.05 level.

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