32 results about "Ictiobus" patented technology

The invention discloses a fish body dissection and cleaning device based on freshwater fish processing. The device comprises a frame, a cleaning box, a second rotating rod and a dirt collecting box. An electric motor is fixed to the frame by bolts; a fixed rod is welded to the frame; the electric motor is in keyed joint with a first rotating rod; both ends of the first rotating rod are movably connected to the frame by a ball rotating bearing; the first rotating rod is welded with blades; the fixed rod passes through a fixing seat; a first cavity and a second cavity are opened in the inner wall of the fixing seat; the side wall surface of the top of the fixing seat is sunken inwardly to form a groove; and the top end of the fixing seat is provided with a clamping board. According to the fish body dissection and cleaning device based on freshwater fish processing, the fish bodies are not polluted during the cleaning process, thereby improving the cleaning effect; and the cut-off fish bodies, fish heads and fish tails can be classified and collected for facilitating subsequent processing.

The invention relates to a method of using X radial to kill sperm genetic materials of alive fishes which uses X radial to irradiate fish sperm collected by people. 0.5-1.5ml of fish sperm is put in a transparent polypropylene eppendorf centrifuge tube with volume of 1.5ml; intensity of the X radial is 100kV-5mA; radiating time is 50-80 minutes; radiating distance is 5-15cm. On the premise of preserving insemination function of sperm, the method realizes effectively killing sperm genetic materials of fishes. The invention also relates to the application of the method of using X radial to killsperm genetic materials of alive fishes to genetic breeding of freshwater fishes.

The invention relates to an automatic collection device for semi-floating fish eggs. The automatic collection device is characterized in that the automatic collection device comprises a right-angle bent pipe, a suspension rope, a net bag and an inflating pipe, the right-angle bent pipe is suspended in an egg laying pond through the suspension rope and the suspension rope is tied at the bent position of the right-angle bent pipe; the right-angle bent pipe comprises a vertical pipe section and a transverse pipe section, a weight is arranged at the lower end of the vertical pipe section to keep the vertical pipe section to be in a vertical state when the right-angle bent pipe is in a suspended state; the mouth of the net bag is sheathed at the rear end of the transverse pipe section and is tightly tied through a tying rope; and the inflating pipe is inserted into the vertical pipe section by certain length from the bent position of the right-angle bent pipe. The automatic collection device for the semi-floating fish eggs has the advantages that the device is simple, convenient and feasible to operate, the manufacturing cost is low, the labor intensity can be reduced and the working efficiency is improved; the damage to the fish eggs is reduced, the collection rate of the fish eggs is high and the hatching rate of fish fries is high; and the structure is simple, the space of the egg laying pond is not occupied, the fish egg collection and the inflation can be conducted at the same time, additional investment is not required and the automatic collection device is particularly suitable for the artificial breeding of seawater and freshwater fishes such as four major domesticated fish and the like which lay semi-floating eggs.

The invention belongs to the technical field of fish production estimation and discloses a method for predicting the production of freshwater cultured fish, which can realize accurate prediction of the production of freshwater cultured fish. Collect historical meteorological data and historical freshwater aquaculture fish production data, and use stepwise regression analysis to screen meteorological factors that have a significant impact on freshwater aquaculture fish production. In order to judge whether to introduce or delete new variables without changing the overall significance of the equation, Therefore, a coefficient is set to distinguish the introduction and deletion of new variables. Using these significant meteorological factors to establish a forecasting model for predicting freshwater aquaculture production, the use of this model can provide assistance for the production management of freshwater fish aquaculture.

A strain of Bacillus Velez, its microecological preparation and its preparation method, the Bacillus Velez is preserved in the China Center for Type Culture Collection, the strain preservation number is CCTCC NO: M 2019218, and the classification name is: Velez Bacillus BvL03, Latin scientific name: Bacillus velezensis BvL03. The microecological preparation suitable for aquaculture made by this strain has a broad-spectrum inhibitory effect on fish pathogenic bacteria through feed addition, water splashing or intraperitoneal injection, and the protection rate reaches 85%. After acting on fish, it can effectively It has the best protective effect against the infection of fish pathogens such as Aeromonas hydrophila on grass carp, crucian carp and other freshwater fish, especially grass carp.

The invention discloses a fermented low-salt semi-dried tilapia mossambica, a processing method thereof and application thereof. The processing method comprises the steps of: removing the internal organs and the scales of the tilapia mossambica; cutting along backside or abdomen; overturning; flatly pressing to form a symmetrical tilapia mossambica piece except the tail of the tilapia mossambica;washing with cleaning water; washing with salt water with 1%-4% of concentration to remove fishy smell and obtain the tilapia mossambica piece without the fishy smell; paving salt on the surface of the tilapia mossambica piece without the fishy smell, wherein the weight of the salt is equal to 3-8% of that of the tilapia mossambica; sousing for 8-24 hours; drying; or soaking for 8-24 hours with 5-10% of salt water to obtain the low-salt tilapia mossambica piece; spraying zymophyte on the surface of the tilapia mossambica piece, wherein the inoculum size of the zymophyte is 105-107 CFU / g fish meat; fermenting for 10-48 hours in a sealing way under the temperature of 12-20 DEG C; and drying the fermented tilapia mossambica piece to obtain the fermented low-salt semi-dried tilapia mossambicawith 30-60% of water content. The product has lubricating meat quality and typical flavor of dried meat. The processing method can be adapted to processing freshwater fishes.

The invention discloses a feed for improving feed conversion efficiency and protein deposition rate of freshwater fish and its application. The feed includes: white fish meal, casein, soybean oil, fish oil, cornstarch, vitamin premix, and chole chloride Alkali, mineral salt premix, CMC (hydroxymethylcellulose) and cellulose. Although the feed of the present invention has a low content of fishmeal, the feed conversion efficiency is still very high, which reduces the cost of aquaculture feed, and the freshwater fish fed with the feed provided by the present invention can effectively reduce the fat deposition rate of the fish body and reduce the liver-to-body ratio. Good for liver health.

The present invention relates to the technical field of freshwater fish processing and also discloses a fish body segment cutting and washing device based on freshwater fish processing. The device uses a mechanical cutting method, can cut a plurality of fish bodies at one time, is provided with a fish segment washing component, and can effectively solve problems that artificial operations are relatively low in efficiency, and processing quality is difficult to guarantee. The structure of the device comprises a rectangular parallelepiped bottom plate; the bottom plate is provided with a transmission component; the upper part of the transmission component is provided with a cutting component; the bottom part of the transmission component above the bottom plate is welded with a liquid collecting box with an upper opening; the upper end part of the liquid collecting box is welded with a second tray with a size matched with the size of the liquid collecting box; and the upper end part of the front and rear side walls of the second tray is welded with the washing component. The device is simple to operate, easy to use and suitable for a variety of places.

The invention belongs to the technical field of aquaculture and discloses antibacterial peptide YcHbeta. An amino acid sequence of the antibacterial peptide is shown as SEQ ID NO.1. The antibacterialpeptide can be used for killing lchthyophthirius parasitizing in freshwater fishes in vitro. Experiments prove that the antibacterial peptide ycHbeta is a natural immune substance from pelteobagrus skin mucus, is nontoxic and harmless to aquatic animals, has high membrane penetrability, is effective on different life history stages of lchthyophthirius and can easily kill trophozoite and predators;thick cysts at a cystic stage can be damaged by using high-concentration antibacterial peptide YcBbeta for treatment, so that wrapped filial-generation polypide can be dissolved.

The invention provides a preparation method and application of a feed for reducing fat deposition rate of freshwater fishes. The feed comprises white fish meal, casein, soybean oil, fish oil, corn starch, a vitamin premix, choline chloride, a mineral salt premix, carboxymethyl cellulose (CMC) and cellulose. Although the fish meal content is low, the feed conversion efficiency is still very high, and the breeding feed cost is reduced. The freshwater fish fed with the feed provided by the invention can effectively reduce the fat deposition rate of the fish body, reduce the liver-body ratio and is beneficial to liver health.

A processing method for squid, squid, bighead carp and silver carp containing omega-3 thornless fish belongs to the field of aquatic product fish processing; the method is to process squid, squid and freshwater fish containing the first and second omega-3 in seafood fish The first and second bighead carp and carp body parts are prepared separately; bighead carp blood, squid meat and bighead carp's heart, liver, kidney, skin and fins are added together to make dark surimi; Squid meat, bighead carp meat, boiled intestine oil, glue made from scales, finely ground stinging fish bladder are added together to make light-colored surimi and put into fish-shaped molds, then add dark-colored surimi to embellish it, and send it to the microwave oven Cooked into a boneless fish rich in omega-3.

The invention relates to the technical field of genetic engineering of freshwater fish, and discloses an isolated carp antiviral protein Pdcd6ip and its antiviral activity. The nucleotide sequence of the gene of the carp antiviral protein Pdcd6ip is 1-2610bp in SEQ ID NO:1 The sequence shown, the encoded amino acid sequence is the sequence shown in SEQ ID NO:2. Tests show that the expression of the Pdcd6ip protein cloned by the present invention can affect the proliferation of carp spring viremia virus (SVCV), and the Pdcd6ip protein plays an important role in the process of cell defense against SVCV infection, and has a low impact on the cell activity of ordinary cells . The gene or protein of the invention provides a new target for preparing anti-SVCV medicines.

A strain of Streptomyces alginolyticus N1-32, its microecological preparation and its preparation method. The Streptomyces alginolyticus N1‑32 is preserved in the China Center for Type Culture Collection, and the strain preservation number is CCTCCNO: M 2019381. The Streptomyces alginolyticus N1‑32 can effectively inhibit the growth of common fish pathogens, especially Aeromonas victoria. The probiotics of Streptomyces alginolyticus N1‑32 acted on liver cells of grass carp showed that the bacteria had no toxic effect on fish. By using the probiotics of Streptomyces alginolyticus N1‑32 as a feed additive to feed freshwater fish such as grass carp and crucian carp, the results show that the growth rate and bait efficiency of grass carp are improved, and the immunity of freshwater fish can be enhanced at the same time, thus Significantly improve the resistance of grass carp and other freshwater fish to fish pathogenic bacteria.

The invention belongs to the technical field of storage and transportation of aquatic products. The invention discloses a method for relieving freshwater fish transportation stress. The method is characterized by comprising the following steps of, 1) preparing a fermentation substrate, specifically, mixing astragalus membranaceus, ginseng, angelica sinensis, wolfberry fruits and radix ophiopogonisto obtain the fermentation substrate; 2) preparing a culture solution; 3) preparing inoculation liquid, specifically, selecting microorganisms according to a volume ratio of lactobacillus acidophilusto lactobacillus plantarum to bifidobacterium to streptococcus thermophilus of (1-4): (1-3): (1-6): (1-8); 4) treating the fermentation substrate obtained in the step 1); 5) fermenting; 6) adjustingthe pH value of extracted fermentation liquor to 7.0 by adopting sodium carbonate after the fermentation is finished, and filtering to obtain filtrate, specifically, the final fermentation liquor; and(7) adding the fermentation liquor obtained in the step (6) into a transportation water body of the freshwater fish. The method is natural and harmless, the survival rate of freshwater fish in the transportation process is increased, the loss of muscle nutrient components of fish body is reduced, oxidative damage of the fish body is relieved, and muscle quality is guaranteed to a great extent.

The invention discloses a method for producing dried fish using microbial fermentation technology, which uses fresh, live or frozen freshwater fish as raw materials, and is prepared through the steps of pretreatment, pickling and fermentation, cleaning and desalting, after-ripening and fermentation, cutting into pieces, and vacuum packaging. Dried fish products that can be stored at 0-10°C, or dried fish products that can be stored at room temperature after being sterilized and cooled in vacuum packaging. Based on the traditional pickling process, the present invention uses pickling fermentation technology and post-ripening aroma-enhancing technology to improve the flavor quality of pickled dried fish. Low-temperature post-ripening fermentation and dehydration are carried out simultaneously to inhibit the growth of spoilage bacteria, and the shelf life of refrigerated products is 2 ‑4 months, and the shelf life of normal temperature products is more than 8 months. The fermented dried fish products produced have the advantages of excellent flavor, good texture and long shelf life. This technology can be applied to sea and freshwater fish, etc. It solves the production problems of traditional pickled dried fish such as poor flavor, high salt content, hard texture, and short shelf life, and improves the quality and storage stability of pickled dried fish. It is easy to implement Industrialized production has broad market prospects.