Our Sturgeon Production
Located in Kaduysky District, Vologda Region, Russia’s largest aquaculture sturgeon breeding company is “Diana” LLC. Aquaculture company “Diana” LLC has been involved in the breeding of sturgeon species, including creating productive sturgeon brood stocks, for over 20 years. It’s from these stocks that we obtain sturgeon roe for fish breeding and food purposes, in addition to growing fish seed and fish products. Our company is actively involved in the conservation of sturgeon in order to not only preserve the gene pool of endangered and rare species of this variety of fish, but also to continue growing our own collection. We employ the most innovative technologies, and in collaboration with scientific research centres and various Russian and foreign institutions we keep our sturgeon as close as possible to their natural conditions, thus offering them maximum comfort.
The History of Aquaculture Company “Diana” LLC
Our company dates right back to 1978 when we piloted a carp breeding site, and by 1990 our breeding volume equalled 700 tons per year. By 1986 we had begun breeding valuable fish species such as white salmon, trout, and Baltic whitefish. Then, from 1989 we began breeding sturgeon, and these later became our main product. By the year 1996 our company had become the leader in the field of commercial sturgeon breeding in the Russian market. At the same time as our commercial sturgeon breeding, we chose sturgeon brood stocks breeding as our main strategy for the development of our company: this enabled us to successfully obtain commercial volumes of high quality caviar as well as commercial volumes of fish breeding productive to enable further breeding of fish. A roe processing shop was put into operation at the company’s fishery in 2006, fully equipped and in compliance with not only the latest European standards, but all Russian requirements as well. In December 2006, our industrial production of sturgeon caviar commenced.
We’re extremely proud to say that our caviar is obtained from our company’s own brood stocks, and when it comes to commercial sturgeon breeding and the production of caviar, our company is the leading company in Russia.
The Technology of Caviar
Our company has intentionally disregarded the use of both modern closed-loop and half-closed-loop systems, whereby the fish are typically in a polluted environment, thus leading to bad-tasting caviar. Our sturgeon are bred and maintained in almost perfectly natural conditions, in running river water, outdoor fishponds, nurse ponds, in addition to specially created environments with fish tanks. Depending on the principles of type, sex, and age, the fish are divided into several categories, with each category kept separately in comfortable conditions. Our fish are fed special fish feed, which contain no growth hormones or genetically modified products. All our brood stock fish have individual electronic markings, so our company uses manual labour for strict individual control and correction of the physiological condition of every fish during any stage of breeding. This is done by providing the best and most natural conditions possible for our fish.
In order to determine the sex and degree of maturation of fish eggs, we use ultrasound diagnostic methods to ensure our fish are not traumatised. Part of our technology includes using Cherepovets regional hydro-electric power-plant cooling pond warm water: this ensures we’re able to produce caviar all year round. With today’s modern technology we’re able to breed live fish in almost perfect conditions, enabling us to produce the highest quality caviar for your pleasure. Innovative technology also promotes strict control of all processes at each and every stage of production; from fish-birth right through to the end product.
A diagram of our production process would look like this: breeding the fish, obtaining eggs, followed by the processing of eggs for fertilization to grow more fish, or for food. The fertilisation process, and transformation of eggs to larvae and larvae to fry is contained within our “incubation – larvae” room. In here, the larvae are bred up to a certain size, after which they’re transferred to the fingerling room where they stay until they’re ready to be promoted to the next age group.
From thereon the fish are kept in replacement stock, where they stay until their sex has been identified. Once sex identification has been made, the female fish are transferred to replacement brood stock where, within a period of 4 to 6 years, they start delivering roe. Once female fish have delivered their first roe, they’re moved to roe productive brood stock. Roe produced by these fish is immediately delivered to a processing room, where it’s salted and packed into sterilised jars.
Ecology = Quality
It’s common knowledge that the quality of caviar is directly dependent on the environment of the fish, in addition to breeding expertise and technology. Our company’s main resource is the waters of the forest river Suda; in fact, it was the special qualities of this water that determined where our company would breed sturgeon productive brood stock. The energy of the river Suda comes from numerous northern lakes, and the rapid waters are carried through virgin forests where no upstream industrial or agricultural plants exist.