Aquaculture Probiotics Ammonia Gas Controller

Product Description:probiotics for aquaculture
ODOCOOL yucca based specially desigmed for the control of gases and their odours reaction in aquaculture ponds It is a combination of beneficial bacteria their fermentation extracts and yucca shidejera from C-MAX BIO SCIENCES

Smith and Davey (1993) reported that a fluorescent strain pseudomonad bacteria can competitively inhibit the growth of fish pathogen A.salmonicida. Their results show that the fluorescent pseudomonad is capable of inhibiting the growth of A. salmonicida in culture media and that this inhibition is probably due to competition for free iron. In a challenge test of the Atlantic salmon by A. salmonicida, a statistically significant reduction in the frequency of stress-induced infection in the group of fish bathed in the bacterium fluorescent pseudomonad compared to the control group was observed.

Austin et al (1995) reporteda probiotic strain of Vibrio alginolyticus, which did not cause any harmful effect in salmonids. By using the cross-streaking method, the probiont was observed to inhibit the fish pathogens. When the freeze-dried culture supernatant was added to the pathogenic bacteria such as V. ordalii, V. anguillarum, A. salmonicida and Y. ruckeri, showed a rapid or steady decline in the number of culturable cells, compared to the controls. Their results indicated that application of the probiont to Atlantic salmon culture led to a reduction in mortalities when challenged with A. salmonicida and to a lesser extent V. anguillarum and V. ordalii. The observation with this probiotic Vibrio is encouraging, and it appears that there is tremendous potential for the use of such probiotics in aquaculture as part of a disease control strategy.

Maeda and Nagami (1989) reported some aspects of the biocontrolling method in aquaculture. In their study bacterial strains possessing vibrio static activity which improved the growth of prawn and crab larvae were observed. By applying these bacteria in aquaculture, a biological equilibrium between competing beneficial and deleterious microorganisms was produced, and results show that the population of Vibrio spp., which frequently causes large scale damage to the larval production, was decreased. Survival rate of the crustacean larvae in these experiments showed much higher than those without the addition of bacterial strains. They hope that addition of these strains of bacteria will repress the growth of Vibrio spp., fungi and other pathogenic microorganisms. Their data suggest that controlling the aquaculture ecosystem using bacteria and protozoa is quite possible and if this system is adopted, it will maintain the aquaculture environment in better condition, which will increase the production of fish and crustaceans.

Garriques and Arevalo (1995) reported that the use of V. alginolyticus as a probiotic agent may increase survival and growth in P. vannamei postlarvae by competitively excluding potential pathogenic bacteria, and can effectively reduce or eliminate the need for antibiotic prophylaxis in intensive larvae culture system. They believe that in nature a very small percentage of Vibrio sp. is truly pathogenic, and the addition of potentially pathogenic bacteria to aquaculture system through water, algae, and/or Artemia was recognized. In their study, the addition of the bacteria V. alginolyticus as a probiotic to mass larvae culture tanks resulted in increased survival rates and growth over the controls and the antibiotic prophylaxes