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Juvenile-size of African River prawns ( Macrobrachi­um vollenhovenii ) of an average length of 46.34 ±0.23mm were collected from Epe Lagoon and cul­tured in concrete tanks for 56 days. The production of Nitrogenous compounds was monitored and the anal­yses of the water quality variables were carried out weekly.  The ra nge of the water quality variables were 6.74-7.90 (pH), 25.7-30.3°C (Temperature), 6.71-8.01mg/L (Dissolved Oxygen), 0.00-0.03% (Salinity), 0.199 and 0.725 mS/cm (Conductivity), 24-48 NTU (Turbidity). The result showed that Nitrite (NO 2 - ) ranged between 0.07-0.50mg/L, Nitrate (NO 3 - ) was between the range of 1.32-6.63mg/L and Ammonia (NH 3 - ) was between 0.32-1.65mg/L.

PRODUCTION RATE OF NITROGEN COMPOUNDS AND OTHER WATER QUALITY VARIABLES IN Macrobrachium vollenhovenii CULTURED IN TANKS