Tropical depressions occur when low pressures are accompanied by cold air. Sometimes, air temperatures are low, leading to lower water temperature in shrimp ponds. During tropical depressions, shrimp is susceptible…
6/ Methods of increasing alkalinity in ponds • Alkalinity suitable for black tiger prawn is from 90 to 130ppm, for white leg shrimp is 100-150ppm. • Mix dolomite lime in…
When it rains, temperature, salinity, pH and dissolved oxygen in ponds will be reduced significantly. Thus, shrimp care during rainy season with continuous and prolonged rains becomes difficult for people,…
During rainy season, floods often occur creating unfavorable weather conditions for shrimp farming: temperature changes during a day and widespread thunderstorms making abrupt changes in water environment, causing shock in…
The use of Effective Microorganisms (EM) in shrimp farming is a measure to manage a stable water environment, increase the growth ability of shrimp, and limit the occurrence of some…
Background: Teruo Higa, a Professor from the University of the Ryukyus (Japan), studied and introduced the use of effective microorganisms (EM) technology in sustainable agricultural production. EM is a liquid…
The functions of probiotics When you add probiotics (including selected beneficial bacteria) into shrimp pond, beneficial bacteria will multiply and grow quickly. Activities of these beneficial bacteria will have the…
Shrimp is a lower animal without specific immune system. Thus, its ability to resist pathogens is poor. There is currently no vaccine for disease prevention in shrimp. Weak shrimp is…
Biofloc and semi-biofloc technology: Biofloc technology was researched and developed in the 70s – 90s of the 20th century for shrimp and fish farming. After initial applications, biofloc is now…