Shrimp Farming

In light of the devastating disease problems currently plaguing the global  shrimp farming  industry, water exchange has apparently become a risky management option for maintaining acceptable water quality. The biosecure shrimp farming system is an evolving culture practice which provides means to achieve a higher degree of biosecurity. Biosecurity in aquaculture is the sum of all procedures in place to protect living organisms from contracting, carrying, and spreading diseases and other non-desirable health conditions, with biotherapeutic agents like probiotics. The Central Institute of Brackish water Aquaculture (CIBA) has developed a Bio secure Shrimp Farming Technology (BSFT) based on three years of study, which includes several yard experiments and two pond trials, involving investigations on utilization of bio therapeutic agents, water and sediment quality parameters in relation to modifications in culture practices. It differs from conventional farming with reg...

Disease challenge by viruses, bacteria, fungi and toxic algae presents a major threat to profitable aquaculture production. Biosecurity, in other words reducing the number of infectious organisms in the aquaculture environment, is the most effective form of protection. Biosecurity is a set of management practices, which reduce the potential for the introduction, and spread of disease-causing organisms onto and between sites. Bio-security procedures, particularly disinfection and sanitation, should be combined with selection of pathogen-free seed and strategic treatments to either eradicate or reduce these pathogens to non-infectious levels. The Neospark Biosecurity Programme has been developed over many years with leading aquaculture producers around the nation. Neospark products and procedures have proven effective in practical farm conditions against a broad spectrum of pathogens. These include persistent and difficult to destroy immunosuppressive viruses causing WSSV, ...

Aquaculture is one of the fastest growing food-production sectors but the economic impact that parasites and bacterial, fungal and viral diseases have on the industry is highly significant for the many countries that rely heavily on this industry. Research into the diseases that affect penaeid shrimps that are grown in aquaculture systems is therefore vital, writes Bob Carling for TheFishSite. Two diseases that are currently being actively in Shrimp farming are: 1. The bacterial infection, Acute Hepatopancreatic Necrosis Disease (AHPND) – also called Early Mortality Syndrome (EMS) 2. The fungal infection, hepatopancreatic microsporidiosis caused by Enterocytozoon hepatopenaei (EHP). AHPND Acute Hepatopancreatic Necrosis Disease (AHPND) is a problem of the main countries that farm shrimps – China, Thailand, Vietnam and Malaysia. AHPND can occur in the first 30 days after stocking shrimp into ‘grow-out’ ponds, which is why AHPND is commonly, but ...

Biosecurity is the management practices that prevent non-infected, healthy animal populations from being exposed to infectious or parasitic agents. Common biosecurity measures include: 1. Sanitation:                        Sanitation includes the cleaning and disinfecting of hatcheries, holding facilities, tanks, ponds, handling and vaccination equipment, etc. Cleaning must be done before disinfecting. Disinfectants include chlorine, heat, steam, formalin, and other chemical compounds. All of the chemical disinfectants are toxic, so all equipment should be rinsed well after disinfecting. 2. Vertical disease transmission:                        Vertically transmitted diseases (from parent to offspring) can be prevented by using healthy, disease-free broodstock. 3. Egg disinfection:                     ...

Biosecurity involves following strict management protocols to prevent specific pathogens from entering a system or reducing the numbers. A good understanding of pathogen reservoirs is important. Quarantine, sanitation and disinfection are all important components of biosecurity . Quarantine , defined as the isolation of an organism or group of organisms to prevent the introduction or spread of infectious disease, is a standard procedure that is extremely important in aquaculture. In practical terms, quarantine is a standard set of procedures that should be observed to prevent the introduction of pathogens or diseases into a population of fish, prawn and shrimp in aquaculture. The quarantine protocols should be strictly adhered and should follow as many of the following protocols as are practical: testing of a sample of shrimp, prawn and fish prior to bringing them onto the facility. all-in, all-out stocking procedures. isolation or separation from other populations for ...

The world's demands for high quality aquaculture products make control of diseases increasingly important. Good Bio security measures are vital to maintaining healthy animals, to reducing the risk of acquiring diseases in aquaculture facilities and to harvest high quality good yield. Biosecurity Biosecurity can be defined as ‘the measures and methods adopted to secure a disease free environment in all phases of aquaculture practices (i.e. hatcheries, nurseries, growout farms) for improved profitability’. Biosecurity protocols are intended to maintain the "security" of a facility (i.e., prevent entry of, or reduce overall numbers prior to entry) with respect to certain diseasecausing organisms (parasites, bacteria, viruses and fungi) that may not be present in a particular system. In short, food producers have consumer safety as their primary target. If the food they produce is not safe, no economic model works. The second and equally important target ...

Introduction: During the early 2010, concerned by high shrimp selling prices, many manufacturers decided to use improved stocking densities in the pursuit of higher production levels. However, abnormally high water temperatures (>32°C) and greater feeding rates resulted in increased organic matter levels in the ponds, with the occurrence of a new pathological entity called “ white feces disease ”. The disease was first identified in Penaeus monodon cultivated in low salinity waters (3- 5‰), but it was far along spread throughout complete shrimp production area, where currently 99% production corresponds to Litopenaeus vannamei.  Disease scenario: The disease happens under different soil conditions, and it results in depreciated water quality. Peak mortality rates are seen in the appearance of very low oxygen (<3.0 mg/L)/low alkalinity (<80 ppm) levels. Initial disease signs appear in both control feed trays and at water surface, where abunda...