Probiotik for Polyculture Milkfish Ponds: An Environmentally Friendly Aquaculture Solution

Polyculture farming of milkfish and shrimp is increasingly popular due to land efficiency and potential dual profits. However, the main challenge faced by farmers is maintaining water quality and biota health amidst high stocking densities. This is where the role of probiotik for polyculture milkfish ponds becomes crucial. By utilizing beneficial microorganisms, aquaculture probiotics can create a balanced pond ecosystem, reduce disease risk, and increase harvest yields sustainably.

Why Does Polyculture of Milkfish and Shrimp Need Probiotics?

Polyculture of milkfish and shrimp has complex ecosystem dynamics. These two species have different feeding habits and environmental requirements. Milkfish tend to feed on plankton and detritus, while shrimp rely more on artificial feed and organic waste. Accumulation of feed residue, feces, and other organic matter can trigger increases in toxic ammonia (NH₃) and nitrite (NO₂⁻) for biota. Without proper management, water quality deteriorates drastically, causing stress and mass mortality.

Probiotik for polyculture milkfish ponds works by decomposing organic matter, oxidizing ammonia into safer nitrate, and suppressing the growth of pathogenic bacteria. Thus, probiotics help maintain the balance of the pond ecosystem so that milkfish and shrimp can grow optimally.

Mechanism of Action of Aquaculture Probiotics in Ponds

Aquaculture probiotics generally contain heterotrophic and nitrifying bacteria that work synergistically. The following are the main mechanisms:

• Decomposition of Organic Matter: Bacteria such as Bacillus subtilis produce extracellular enzymes (protease, amylase, lipase) that break down feed residue and feces into simple compounds. This reduces the organic load on the pond bottom.
• Nitrification: Nitrosomonas sp. bacteria oxidize ammonia (NH₃) into nitrite (NO₂⁻), then Nitrobacter sp. oxidize nitrite into nitrate (NO₃⁻). Nitrate is far less toxic and can be utilized by phytoplankton as nutrients.
• Pathogen Antagonism: Bacillus subtilis also produces antimicrobial compounds such as subtilin and iturin that inhibit the growth of Vibrio spp. and other pathogenic bacteria.

With regular application, water quality is maintained, dissolved oxygen is stable, and pond biota are healthier.

Featured Product: Biosolution Milkfish Pond Probiotic Formula

Biosolution presents the Milkfish Pond Probiotic Formula specially formulated to support polyculture of milkfish and shrimp. This product contains three superior bacterial strains:

• Bacillus subtilis: Acts as a decomposer and anti-pathogen.
• Nitrosomonas sp.: Oxidizes ammonia into nitrite.
• Nitrobacter sp.: Oxidizes nitrite into nitrate.

This combination ensures the nitrogen cycle runs optimally and organic matter is decomposed efficiently. The product is applied by direct spreading into the pond at a dose of 3 liters per hectare every 10 days in the morning. Regular use provides benefits:

• More consistent milkfish growth
• Increased harvest yields
• Reduced mortality
• Supports polyculture

By using the Milkfish Pond Probiotic Formula, farmers can manage water quality without frequent water changes, thus being more cost-effective and environmentally friendly.

Effective Probiotic Application Steps

For the probiotik for polyculture milkfish ponds to work optimally, follow these guidelines:

1. Pond Preparation: Ensure the pond is free from pesticide or antibiotic residues. Let the water settle for 1-2 days before application.
2. Application Time: Apply in the morning (07:00-09:00) when water temperature is still low and dissolved oxygen is high. Avoid application during heavy rain.
3. Correct Dosage: Use 3 liters per hectare as recommended. For ponds with high organic load, the dose can be increased to 4-5 liters per hectare in the first week.
4. Regular Frequency: Repeat every 10 days to maintain stable bacterial populations. During critical periods (e.g., shrimp molting), frequency can be accelerated to 7 days.
5. Monitoring: Monitor water quality parameters (ammonia, nitrite, pH, temperature) periodically to evaluate effectiveness.

With disciplined application, harvest yields can increase by 20-30% and the risk of cultivation failure decreases significantly.

Advantages of Probiotics Over Chemical Methods

Many farmers still rely on chemicals such as chlorine or formalin to address water quality issues. However, these methods have drawbacks:

• Toxicity: Chemicals can kill non-target biota and damage the pond ecosystem.
• Residues: Chemicals leave residues that are harmful to consumers and the environment.
• Dependence: Continuous use leads to pathogen resistance.

In contrast, aquaculture probiotics work naturally, are safe for biota, and leave no harmful residues. Probiotics also increase the diversity of beneficial microbes that support long-term productivity.

Case Study: Success of Polyculture with Probiotics

A study in East Java showed that milkfish-shrimp ponds using probiotics regularly had survival rates (SR) of 85% for milkfish and 78% for shrimp, higher than the control (SR milkfish 65%, shrimp 55%). Additionally, feed conversion ratio (FCR) was more efficient and water quality was more stable. This data aligns with reports from the FAO on sustainable aquaculture which emphasize the importance of probiotics in environmentally friendly farming.

Conclusion

Probiotik for polyculture milkfish ponds is the right solution to increase productivity and sustainability of milkfish and shrimp farming. By choosing a quality product like the Milkfish Pond Probiotic Formula from Biosolution, farmers can effectively manage water quality, reduce mortality, and achieve optimal harvest yields. Don't hesitate to consult with our expert team for dosage recommendations and application schedules suitable for your pond conditions. Start applying probiotics now and experience the difference!