Technologies for artificial rearing and processing of valuable subjects of aquaculture.
Work that has been carried out by the All-Russian Scientific Research Institute of Freshwater Fisheries (VNIIPRKh) in developing selection in aquaculture, using genetic engineering techniques for aquaculture, and developing fish processing technologies is outlined. Selection and breeding work carried out by VNIIPRKh in 1999 and 2000 has included the development of new breeds of carp with improved resistance to disease (the Scaled Angelinskiĭ and Smooth Angelinskiĭ breeds), and the breeding of new varieties of bighead carp (Aristichthys nobilis) (tolstolobik), namely the variegated (PT58), white (BT58) and hybrid (PBT58) varieties. Other selection and breeding activities have related to hybrids of beluga (Huso huso) and sterlet (Acipenser ruthenus). Another key area of research is the development of rapid and reliable methods for screening fish populations for disease and assessing the epizootic situation. This has included the development of a hybridization test for diagnosis of spring viraemia in carp; principles of this test are outlined. In the area of fish processing, technologies that have been developed for tanning fish skins, for preparing medicinal preparations from carp milt and from mussel products, and for mechanical stripping of freshwater fish species are briefly outlined.