Therefore, the Directorate of Fisheries has instructed methods to identify biosafety hazards in the production and nursing of brackish water shrimp and some biosafety requirements conditions in aquatic hatcheries, nursing brackish water shrimp.
In particular, brackish water shrimp hatcheries and nurseries must comply with regulations relating to biosafety requirements, such as: biosafety requirements when choosing the location for hatcheries; biosafety requirements for the infrastructure of the facility; biosafety in food preparation and food preservation for broodstock; biosafety in the storage, use and preservation of chemicals and biological products in the production and nursing of brackish water shrimp, requirements for biosafety control programs in production and nursing.
In specific, on the production and nursing construction site facility: it is important to choose the site for the construction of a brackish water shrimp hatchery with a sufficiently large area, solid ground, stable strata, not flooded during high tide, not located in an eroded location, in compliance with national, regional or provincial planning procedures, or with the written consent of the local state authority. The construction site facility is not affected by pollution sources and requires a compliance with national, regional or provincial planning procedures, or with the written consent of the local state authority, a backup generator with adequate capacity during the power outage to serve brackish shrimp hatchery production, convenient and safe for brackish water shrimp breeds transportation.
For water sources supplied to hatchery of producing and nursing brackish water shrimp breeds: The environmental parameters of water sources taken into the hatcheries before production must comply with the following requirements: for fresh water: QCVN 08-MT: 2015 / BTNMT, National technical regulation on surface water quality, issued under the Circular No. 65/2015 / TTBTNMT dated December 21st, 2015 of the Ministry of Natural Resources and Environment.
With regard to the biosafety requirements for brackish water shrimp hatchery infrastructure, it is necessary to have a campus with full functional and layout of functional areas properly. For the premises of brackish water shrimp breeds hatcheries, it must be separated from residential areas, industrial parks and; not affected by commercial aquaculture; avoid harmful animals and dust from outside to the production and nursing areas. The arrangement of functional areas in the brackish water shrimp hatchery must follow the one-way principle (no cross-section, no cross-cut).
In addition, the document also guides the procedures to ensure biosafety in food preparation and food preservation broodstock and shrimp breeds such as: The algal biomass multiplication area must be separated from other hatchery areas which are divided into 2 zones: pure breeding area and biomass multiplication area. The algal biomass area should be well-lit, next to the shrimp larvae nursery area. Plastic containers, plastic bags for algae farming are made of non-toxic materials, enough capacity for algae to grow well and easy to clean and disinfect.
The artemia hatchery must be separated from other functional areas, with a sufficiently large area. The site must be next to the larval rearing area (zoea, mysis, postlavae). Barrels, buckets and racquets used in Artemia hatchery must be specialized and easy to clean and disinfect.
Do not use antibiotics in the production and nursing brackish water shrimp. Do not use chemicals, biological products, or microorganisms banned from use in aquatic feed or aquaculture environment treatment products according to regulations of the Ministry of Agriculture and Rural Development. Only delivery into hatchery the chemicals, probiotics, microorganisms and food that are allowed to circulate on the market according to the provisions of law and guaranteed quality. Use of chemicals, probiotics and microorganisms must comply with the instructions on dosage, usage on product label and instructions of experts.
For natural resource-exploited broodstock: Having the Quarantine Certificate in accordance with the provisions of the law on veterinary medicine; not infected and in good condition during transportation process. For domestically selected broodstock: Derived from hatcheries inspected by the Directorate of Fisheries and granted the Certificate of eligibility for aquatic breeding production and rearing (for broodstock); having a Quarantine Certificate in accordance with the law on veterinary medicine; a healthy condition during transportation process. For imported broodstock: having a valid origin (at the hatcheries checked by The Directorate of Fisheries); having a Quarantine Certificate in accordance with the law on veterinary medicine; having import records; keeping in a healthy condition during the transportation process.