Cold-season shrimp protocol — countering low-temperature stress with LALPACK IMMUNE

1. Why cold season is dangerous

3 major issues co-occur when T < 25°C:

• Shrimp metabolism slows — reduced feeding, weight gain drops 50 – 70%.
• Immunity weakened — Vibrio and EHP easily bloom.
• Bottom microbes stall — NH₃/NO₂ accumulate fast.
• WFS risk rises from gut microbiome imbalance.

2. Cold-season protocol

Apply when temperature < 26°C for 3+ days:

• Feed (1 meal/day): LALPACK IMMUNE 5 g/kg + AQUAMOS 3 g/kg + TETRA-C 3 g/kg.
• Broadcast: BIO MAX or MAX 4000 every 3 days to compensate slow microbes.
• Boost DO ≥ 5 ppm — aerators 24/7.
• Cut water exchange, never exchange cold water suddenly.
• Use easily-digestible feed, cut 30% from warm-season ration.

3. Special notes

• Monitor pond temperature 3×/day — if < 20°C, consider 50% feed cut.
• Day/night temperature swing > 5°C — raise LALPACK IMMUNE to 7 g/kg.
• Don't disinfect water in cold season unless absolutely required — microbes are hard to reseed.
• Add minerals (CELL CANPHOS GOLD) on moult — shell hardening is slow in cold.