12 results about "Fish growth" patented technology

The application discloses a kind of fermented feed fermented by three strains of probiotics of Bacillus YA ( Bacillus sp ), yeast Y ( Saccharomyces cerevisiae ) and capsular red bacteria R3 ( Rhodobacter capsulatus ), and preparation method and application in aquaculture thereof, and viable count is not less than 1×10 7 CFU / g.The fermented feed is replaced ordinary feed according to certain proportion, and feeding result shows that aquaculture water quality is significantly improved after adding fermented feed, and fish growth performance, digestive enzyme activity, immunity, and muscle quality are also obviously improved.Using the feed in suitable range can shorten growth cycle, reduce cost, improve aquaculture environment, reduce antibiotic use, and improve muscle quality of farmed animals, with good economic and ecological benefits, simple fermentation process, low cost, and suitable for industrial large-scale production.

The utility model provides a modularization container type intelligent fish pond system, include: a plurality of containers, annular arrangement and interconnect to enclose a central space, the central space forms a fish pond structure, the bottom of fish pond structure is equipped with a waterproof layer, a plurality of passageways are formed in each container respectively, a control system is arranged in at least one container of container, and a modularization functional device is arranged in container and is electrically connected control system, the modularization functional device can include water quality management module, fish population monitoring module, temperature control module, fish receiving module etc, each module can be configured according to the breeding demand, effectively promotes the breeding efficiency, reduces the manpower demand, and can automatically adjust the feeding amount and environmental parameter according to the fish growth condition, greatly improves the health and yield of fish.

The present application relates to the technical field of aquaculture feed, and provides a hermetia illucens protein peptide and a preparation method thereof.The hermetia illucens protein peptide prepared by using the technical solution of the present application can be used as a feed protein source, replace most of the fish meal in the feed, reduce the use of fish meal in the aquaculture feed, and alleviate the problem of fish meal shortage and insufficient supply.The present application also provides application of the hermetia illucens protein peptide in preparation of functional feed for improving the growth performance of fish and improving the muscle quality of fish.The functional feed for fish prepared by using the hermetia illucens protein peptide of the present application can not only significantly improve the growth of rainbow trout, but also has no negative effect on the antioxidant capacity of the liver and back muscle of animals, and can also improve the muscle quality of rainbow trout.

This invention belongs to the field of feed technology, specifically relating to a compound herbal feed additive for promoting the growth and enhancing the immunity of bluntnose bream and its application. The invention discloses a compound herbal feed additive, which, by weight, consists of 3-6 parts Astragalus membranaceus, 2-4 parts Lycium barbarum, 1-2 parts Ginseng, and 0.5-1.5 parts Phragmites communis. This compound herbal feed additive can improve fish survival rate, promote fish growth, and enhance fish immunity and disease resistance through the synergistic effect of its components. The compound herbal feed additive can be used to prepare fish feed. Experiments have shown that adding this compound herbal feed additive to fish feed can promote the growth of bluntnose bream and improve its immunity and digestive function.

This invention belongs to the field of biotechnology, specifically relating to the application of calcitonin in promoting fish growth. By constructing a fish model lacking calcitonin synthesis function and combining this with experiments treating wild-type fish with exogenous calcitonin, the weight and body length of the fish model lacking calcitonin synthesis function were measured. The results showed that calcitonin significantly enhanced the weight and body length of zebrafish. Therefore, calcitonin can be applied to promote fish growth.

The application provides a constraint brown rod bacterium isolated from the intestine of Cephalopholis leopardus and an application thereof, and the preservation number is CGMCC No. 36569. The strain of the application has significant antagonistic effect on Vibrio harveyi, and can be used for preparing products for preventing and controlling aquatic Vibrio diseases. The strain is derived from fish intestine, has good environmental adaptability and host colonization capacity, is high in safety, has no hemolytic activity and carries no drug resistance gene. Feeding experiments show that the strain can promote fish growth, improve feed utilization rate, and enhance the immunity of the body. The application also provides an application of the strain in feed additives or bacterial liquid products, and the application has good popularization value.

The application discloses application of Prunella vulgaris extract in prevention and treatment of fish parasitic disease infection. Inclined tube worm in-vitro soaking experiments show that the insecticidal effect of Prunella vulgaris extract and zinc sulfate is equivalent after 48 hours, and the mortality rate is above 95.44%; based on the growth condition of rainbow trout feeding on Prunella vulgaris extract, the specific growth rate of fish is significantly improved, the growth performance is improved, and the growth of fish is promoted; the plasma biochemical indexes after parasitic infection show that the addition of 0.25% to 1% Prunella vulgaris extract in feed can significantly reduce stress caused by pathogenic stress and protect the health of fish liver.

This invention discloses a type of aquatic feed yeast, *Rhodotorula buergerianum*, and its application in aquaculture, relating to the field of microbial technology, specifically to a type of *Rhodotorula buergerianum* Ho7-3 (… Rhodotorula toruloides Ho7-3 can be applied in aquaculture, and it can enhance the activity of intestinal digestive enzymes, immune response and antioxidant defense system in fish, thus significantly improving the growth performance of farmed fish.

The utility model discloses a feed conveying mechanism relates to the fish and animal husbandry equipment field, technical scheme is, including feed supply unit and feed throwing unit. The feed supply unit's feed bin sets into the inlet and the feeding port, and the lower part has the spiral feeding type conveying assembly, the throwing unit's throwing bin feed inlet communicates with the feed bin feeding port, and the inside is equipped with the rotary member of throwing bin rotary connection to throw out material. The mechanism passes through the spiral conveying assembly and the rotary member cooperation, realizes the lateral conveying of feed, need not many units or long path conveying, reduces the equipment volume, reduces the installation maintenance cost, and the spiral structure adapts the feed of uneven granule and humidity change, reduces the blockage, reduces the manual cleaning frequency, and the rotary member throws the material and expands the feeding range, makes the even distribution of feed, avoids the waste and the deficiency, satisfies the large -scale intensive breeding demand, promotes the fish growth consistency and the breeding efficiency.

This utility model discloses an improved aeration device to prevent the pH value of aquaculture water from decreasing, belonging to the technical field of aquaculture equipment. The device includes an air compressor and a CO2 absorption device. The air compressor has an air inlet and an air outlet pipe. The CO2 absorption device is a sealed container filled with a strong alkaline solution, and the CO2 absorption device has an inlet and an outlet. The air compressor outlet pipe is connected to the inlet of the CO2 absorption device and is inserted into the strong alkaline solution. The outlet of the CO2 absorption device is connected to an air stone placed in the aquaculture water through an outlet coil and a hose. This utility model absorbs CO2 from compressed air through the strong alkaline solution in the CO2 absorption device, preventing CO2 from entering the aquaculture water and causing a decrease in pH value. It can maintain a suitable pH environment for fish growth, reduce fish diseases, promote growth, and the device has a simple structure and low cost, making it suitable for widespread application.