Pangasius nursery: survival decides profit

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40 fish/kg

🐣Nursery stage

Sensitive fry — high mortality

Pangasius fry are nursed at high density, feed continuously and are very sensitive. Good water and nutrition here lift survival and fingerling quality.

PRO FCANFORTA

💧Nursery water

Clean nursery water, low toxic gas

Excess fine feed spikes NH3 in small nursery tanks/ponds. Probiotics + gentle exchange keep water clean and reduce fry loss.

SOILMAX NewNIAZYMEYUCCA C

🦠Digestion & immunity

Healthy gut — fry grow through

Fry guts are immature and easily upset. Digestive enzymes and yeast aid absorption, with immune support to keep fry strong and reduce loss.

PRO FBIOMAXACTISELAQUAMOS

🛡️Early disease

Necrosis & parasites at fingerling stage

Bacillary necrosis (Edwardsiella ictaluri) and parasites (Trichodina, flukes) often hit fingerlings. Early detection and gentle dosing save the batch.

FLOR-MAXAQUA PRAZIHERB GUARD

1. 1Days 1–10

   Keep Moina, stabilise the water

   • Apply FYTO FLOC + GROWMIN + fermented NIAZYME daily for the first 2 days, then every other day.
   • Goal: grow water fleas, clear the water, keep a good colour and stable pH and oxygen.
   • Feed: Moina in the pond plus soybean meal and egg yolk 5–6 times a day for the first 2 weeks (FAO).

   • FYTO FLOC3–5 kg/1,000 m³
   • GROWMIN1 kg/1,000 m³
   • NIAZYME1 kg fermented with 5 kg powdered feed

2. 2Days 11–15

   Disinfect every other day

   • Apply AQUA DINE New every other day through this stage; salt can be added.
   • Move to 35–40% protein powdered feed, 4 meals a day (Ministry of Science & Technology).

   • AQUA DINE New1 kg/6,000–8,000 m³
   • Salt20 kg/1,000 m³

3. 3Days 15–25

   Prevent tail rot

   • Days 15, 17, 19: WORK COP Plus + POWER GLUTA in the morning.
   • From day 17, raise the water 15 cm at each treatment.
   • 24–48 hours after each disinfection, re-seed the pond with SOILMAX New probiotics.
   • Boost immunity and digestion: mix BETAGLUCAN GRO + PRO F into the feed.
   • The main agent is Flavobacterium columnare: fish gather at inflows, produce mucus, lose skin colour and the tail erodes.

   • WORK COP Plus1 L/6,000 m³
   • POWER GLUTA1 L/6,000 m³
   • SOILMAX New1 pack/2,000–2,500 m³
   • BETAGLUCAN GRO2–3 g/kg feed
   • PRO F3–5 g/kg feed

   Use clean source water; check pH, NO₂ and H₂S regularly.

4. 4Week 4 → 40 fish/kg

   Thin out, grow to 40 fish/kg

   • Thin out at the end of week 4 to 150–200 fish/m² (Ministry of Science & Technology, FAO).
   • Floating feed at 30–35% protein, 3 meals a day.
   • Grow to about 40 fish/kg (≈ 25 g each), then sell or move to grow-out ponds — the large-fingerling class (10–30 g) in QCVN 02-33-2:2021; fish must be free of bacillary necrosis.
   • Deworm safely with AQUA PRAZI when needed; keep vitamins and probiotics going.

   • CANFORTA1 kg/800–1,200 kg feed
   • PRO F3–5 g/kg feed, continuously
   • AQUA PRAZI1 kg/15 t of fish · 3 days

   In the rainy season, below 28 °C water, bacillary necrosis kills the most fingerlings (Can Tho University).

Dashed chips: common farm inputs, not Than Vuong products. Sources: Than Vuong technical team — 15-day fry nursery protocol · Than Vuong technical team — Preventing tail rot in pangasius fingerlings (2024) · QCVN 02-33-2:2021/BNNPTNT · Ministry of Science & Technology — pangasius nursery · FAO — Striped catfish fact sheet · Can Tho University — common pangasius diseases · Than Vuong technical team — staged deworming · Doses from Than Vuong product labels