The mean values of total ammonia and non-ionized ammonia
(free) remained below toxic levels throughout the experimental
period ( Cobo et al., 2012 ). This indicates that ammonia was
effectively controlled in all treatments, with molasses treatment
resulting in the lowest values ( Table 1 ). The concentration profile
of total and free ammonia remained close to 1 mg L−1 in all treatments during the experimental period ( Fig. 1 ). The addition
of organic carbon, is either dextrose or molasses, effectively stimulated the production of bacterial biomass from ammonia in
the BFT systems ( Avnimelech ,1999 ). The C:N ratio that results
from the input of organic matter (artemia + feed + source of carbon)
was greater than 12:1, and was close to the ratios reported to
be optimal for bacterial growth ( Schneider et al., 2006 ) and assimilation of ammonia into microbial proteins ( Avnimelech, 1999;
Ebeling et al., 2006 ).
The mean values of total ammonia and non-ionized ammonia(free) remained below toxic levels throughout the experimentalperiod ( Cobo et al., 2012 ). This indicates that ammonia waseffectively controlled in all treatments, with molasses treatmentresulting in the lowest values ( Table 1 ). The concentration profileof total and free ammonia remained close to 1 mg L−1 in all treatments during the experimental period ( Fig. 1 ). The additionof organic carbon, is either dextrose or molasses, effectively stimulated the production of bacterial biomass from ammonia inthe BFT systems ( Avnimelech ,1999 ). The C:N ratio that resultsfrom the input of organic matter (artemia + feed + source of carbon)was greater than 12:1, and was close to the ratios reported tobe optimal for bacterial growth ( Schneider et al., 2006 ) and assimilation of ammonia into microbial proteins ( Avnimelech, 1999;Ebeling et al., 2006 ).
การแปล กรุณารอสักครู่..