1. Why butyric acid matters for shrimp gut
Butyric acid is a short-chain fatty acid (SCFA) — pure fuel for intestinal mucosal cells and an effective lumen-pH suppressor of harmful bacteria. The Glycerin Fatty Acid Ester in PRO SUR safely delivers butyric acid past the stomach into the small intestine, where it's needed.
When Vibrio has eroded the shrimp gut (TPD, EMS, white feces), PRO SUR restores the absorptive cell layer and lowers pathogen pressure — without antibiotics.
2. Dosage — prevention and treatment
Mix with clean water, blend into feed, coat with ATOMIC, dry 20 min:
- Routine prevention: 3 – 5 g/kg feed, 1 meal/day, repeat every 5 – 7 days throughout the cycle.
- Light deworming: 5 g/kg, 1 meal/day, 2 consecutive days.
- Gut disease treatment: 7 – 10 g/kg, 2 – 3 consecutive days.
- Combine with digestive enzymes and prophylactic herbs in the same meal for synergy.
3. Antibacterial evidence — TPD and EMS
In-vitro studies by Than Vuong's technical team show PRO SUR at 1.5% produces a 2.3 cm inhibition zone against V. parahaemolyticus VP4-24 — the TPD “glass-body” strain in whiteleg shrimp post-larvae. This is the foundation for PRO SUR's role as a core piece of the TPD protocol alongside CLEVER.
4. When to add PRO SUR to the protocol
- After the acute phase of white feces / EMS — when gut rehab is needed.
- Weak feeding, abnormally high FCR, segmented gut.
- Ponds with TPD history at post-larvae — use prophylactically days 1 – 30.
- After water disinfection (chlorine, BKC) when gut microbiome must reseed.
- Pair with BIOZYME (digestive enzymes) or AQUAMOS (yeast) for boosted resistance.
5. Storage & notes
Shake well. Reseal after use. Store dry, cool, ≤ 30°C. For heavily contaminated ponds, combine with water disinfection (Vibrio Clear) and water probiotic reseeding (SOILMAX, MAX 4000).
Verbatim from the PRO SUR (500 g) label — synced with the product page to avoid drift.
During culture: 3 – 5 ml/kg of feed, 1 meal/day, repeated every 5 – 7 days throughout the crop. Mild gut flush: first meal 5 ml/kg of feed, 1 meal a day, for 2 consecutive days. When the shrimp gut has problems and during recovery: first meal 7 – 10 ml/kg of feed, fed for 2 – 3 consecutive days. Directions: shake well, dilute the product in enough water, mix evenly into the feed, coat with ATOMIC or a suitable coating product and let dry for 20 minutes before feeding. Note: best fed in the same meal as digestive enzymes and herbal products; the dose may vary with shrimp health and actual farming conditions. Withdrawal period before harvest: 0 days.
- Helps stabilize the gut and hepatopancreas microbiota of shrimp, helping limit the growth of harmful bacteria under intensive farming.
- Short-chain fatty acids and their ester derivatives help improve the gut environment, reduce pressure from unfavourable bacteria and support healthy shrimp.
- Supports a balanced gut microbiota, helping shrimp digest and absorb nutrients better.
- Helps maintain hepatopancreas function and overall shrimp health under environmental stress.
White feces gone but shrimp still won't eat?
That means the gut mucosa hasn't healed. Contact Than Vuong via Zalo 0867 957 568 for a stage-specific PRO SUR dosing plan.