Tilapia Farming: Decrease in Pseudomonas in Tilapia Hatchery
Location: Guayaquil, Ecuador
Objective: Reduce Pseudomonas
Result: After nine days of Lymnozyme® treatment, no pseudomonas could be detected in the fish tissue.
Research Company: Laboratory Avicola
Heavy mortalities were occurring at a tilapia farming facility due to pseudomonas infection. Whole fingerlings were sent to Laboratory Avicola located in San Isidro, Guayaquil, Ecuador, where fish tissue was ground and cultured for pseudomonas concentrations. Before treatment with Lymnozyme®, test results indicated that pseudomonas concentrations in fish tissue were over 4.0 x 106 cfu/gram, and reported too numerous to count. Fish were then treated with Lymnozyme® at the standard dosing rate of 30-60 ml per 4000 liters once every 3 days for 9 days, then once per week during the test period from May 19 through June 6.
After Lymnozyme® treatment period, whole fingerlings were sent to the laboratory on June 6 for further tissue analysis. No pseudomonas could be detected in fish tissue.
Tilapia Farming: Reduction in Tilapia Fingerling Mortality Infected with Streptococcus in a Recirculation System
Client: Tilapia Aquaculture Facility
Location: An on-farm hatchery at an intensive recirculating tilapia farm in North Dakota
Objective: Reduce the tilapia mortality rate
Result: Reduction from 300 fish deaths per day before treatment to less than three
The Lymnozyme® probiotic was applied at the normal dosing to control fish mortalities due to Streptococcus infection: 40 ml Lymnozyme® to 4000 liters water for closed systems. Mortality rates of 300 fish per day were reduced to less than 3 per day. Streptococcus was completely eliminated from the hatchery with use of Lymnozyme®.
Tilapia Farming: Mortality and Ammonia Reduction of Production Tilapia in a Recirculating Aquaculture System Following Treatment with Lymnozyme® and WSR™ Microbes
Client: North American Fisheries Cooperative
Location: Binford, North Dakota
Objective: Reduce tilapia farm fish death and ammonia levels
Result: 86% reduction in ammonia levels and 50% reduction in fish mortality after five weeks
Research company: Hamling Fish Farms
Reduction in mortality of tilapia fingerlings infected with Streptococcus following treatment with Lymnozyme.
Shrimp and Tilapia Farming: Tilapia and Shrimp Polyculture
Objective: Reduce various bacterial outbreaks in polyculture, especially during the cold season in Ecuador
As seen in most typical polyculture aquaculture facilities, only the tilapia were fed a commercially prepared diet in this pond study and the shrimp received no commercial supplementation diet.
Shrimp essentially survive on biological conversion of waste product. With the exception of the addition of WSR™ in pond 5P, all other grow-out conditions were the same between the two ponds, including the amount of aeration (6 HP / Hectare). The average dosage for WSR™ was 0.75 to 1.0 kg per hectare per week during the grow-out cycle. WSR™ was applied at 1.5 kg/Ha in week one as a shock treatment.
Partial shrimp harvests were conducted at intervals during the total tilapia production period of April through September and October. Their average weights and total harvest weights were recorded. Data for shrimp production were gathered from the same ponds 5P and 2P during the same growth cycle to determine if any improvements in growth could be indicated between WSR™ treatment and the untreated pond.
The use of specialized microbial formulas such as WSR™ presents a major increase in net revenues to the shrimp aquaculture operation and can significantly improve profits with a small initial investment. The use of WSR™ in marginal shrimp farming systems with poor water quality may improve yields enough to make these farms profitable.