Shrimp & fish farming

Striped catfish from nursery to grow-out: probiotics, digestive enzymes and feed protein and fat in new research

A trial published on 30 October 2026: adding 2 g/kg probiotic to feed containing a digestive enzyme cut FCR in 10 g catfish fingerlings from 1.60 to 1.33 over 90 days; higher doses did no better. In grow-out, 28% protein feed beat 32% on FCR, while 8% fat built up belly fat. Plus two trials on survival.

White feces in whiteleg shrimp: the latest research points to EHP, Vibrio and water temperature

A review of 2021–2026 research: in Chinese outbreaks the white strings were mostly EHP spores; in Indonesia and China some Vibrio species surge in white-feces guts; water at 28–36 °C raises the risk. In the laboratory, shrimp needed both EHP and Vibrio to produce white feces.

Preventing white feces from the gut: two new trials feeding beneficial bacteria and metabolites taken from healthy shrimp

A Ningbo University (China) team looked for what healthy shrimp guts have and white-feces guts lack, then fed it back for 14 days before challenge. Four beneficial strains cut deaths from 30.4% to 5.2% (2024); pyruvic acid and glutamine cut them from 45.2% to 12.7% (2026). Results from 50-litre tanks with a Vibrio challenge; no pond trial yet.

The Vibrio toxins behind EMS and TPD: the bacteria kill shrimp only when they carry the PirAB or VHVP-2 toxin genes

A review of 2013–2026 research: EMS (AHPND) is caused by the PirA–PirB toxin pair, TPD by the VHVP-2 protein. The toxin genes sit on plasmids that move between Vibrio species, so a TCBS Vibrio count cannot tell you whether a toxic strain is present.

Binding and neutralising the Vibrio toxins behind EMS and TPD: clay, antibodies in feed and anti-virulence compounds — how strong is the evidence?

A review of 2019–2026 research: montmorillonite clay at 2.5–5 g/kg feed raised whiteleg shrimp survival to 83–94% versus 40% after an AHPND challenge; antibodies in feed protected shrimp in lab tanks; for TPD there are only small-flask anti-virulence trials. All were used before infection, and there is no pond dose yet.

Survey of 110 Asian shrimp farms: 60% of shrimp have poor gut health, even on well-run farms

A survey of more than 110 shrimp farms in China, Vietnam, Thailand and Indonesia, with over 5,000 gut samples: 60% of shrimp had poor or critical gut health; those with good gut scores were about 20% heavier on day 60.

£2.4 million project seeks solutions to antimicrobial resistance in Vietnam's pangasius farming

Three new studies: healthy seed from the hatchery, the right yeast, and preventing tilapia disease

A summary of three 2026 scientific reviews: shrimp larvae need stage-specific nutrition, yeast must be the right form at the right dose, and tilapia disease prevention starts with daily management.

El Niño 2026–2027: How Much Mineral Is Enough? (Part 5)

After rain, Mg, K or alkalinity reads below the table: how much is enough? The 1 mg/L × 1,000 m³ = 1 kg rule, what shrimp actually need according to published trials, and a worked 3,600 m³ pond example that needs only about 36 kg of KCl and 61 kg of sodium bicarbonate for the first step.

Shrimp sounds and AI in precision feeding management

Underwater acoustic sensors can add data on feeding activity that helps farmers adjust their automatic feeders. The technology’s value still has to be verified in the pond, through feed use, growth and environmental conditions.

El Niño 2026–2027: Don't Wait for Shrimp to Get Stressed Before You Act (Part 2)

Instead of asking "what do I dose once shrimp are stressed?", the right question is "how much buffer does my pond have left?" This article covers the 9 buffers shrimp farmers should prepare before El Niño 2026-2027 shifts the weather: oxygen, pH, alkalinity, salinity, dietary minerals, algae, bottom organics, feed and backup water — plus a before/during/after-stress priority table.

Immune Support for Fish: Why a Higher Dose Isn't Always Better?

Supporting fish immunity requires the right active ingredient, the right dose, and the right timing for each growth stage. When choosing a supplementation program, farmers should weigh technical evidence, pond conditions, and economic return together.