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77 results about "Cannibalism" patented technology

In zoology, cannibalism is the act of one individual of a species consuming all or part of another individual of the same species as food. Cannibalism is a common ecological interaction in the animal kingdom and has been recorded for more than 1500 species. It does not, as once believed, occur only as a result of extreme food shortages or artificial conditions, but commonly occurs under natural conditions in a variety of species. Cannibalism seems to be especially prevalent in aquatic communities, in which up to approximately 90% of the organisms engage in cannibalism at some point of the life cycle. Cannibalism is also not restricted to carnivorous species, but is commonly found in herbivores and detritivores.

Stereo fine cultivation technique of shrimp, crab and shellfish in sea water pond

An three-dimensional intensive culture technique of shrimps, crabs and shellfish in a seawater pond comprises the following steps: the pond is cleaned up before stocking, the bottom of the pond is solarized, a central canal and a circular canal are excavated, and feed water is disinfected and sterilized with medicines; fresh seawater is fed, the water quality culture, fertilization and algae culture are carried out, a lifting device for a swimming crab breeding cage is prepared, and lines are parallel set up at the two ends of the culture pond with each line spaced 50cm; and 30cm higher than the surface of the water, the cage is suspended every 50cm, the inside of the cage is provided with fine sand, the outside of the cage is sheathed with a plastic netting, benthonic seashells are put into the cage for the first, and the stocking density is 30 benthonic seashells per mu, then the stocking of prawns is carried out, and the stocking density is 5000 prawns per mu. By adopting the three-dimensional multi-species hybrid culture technique of shrimps, crabs and shellfish in a seawater pond, the water layers of the stocking ponds can be fully utilized, the utilization rates of each water layer of the stocking ponds, stocking devices and manpower are further improved, the water purification capacity of the seashell can be fully utilized, and the swimming crabs are suspended in a cage, thus avoiding cannibalism and catching and killing the shrimps and seashells in the same pound; Furthermore, the three-dimensional intensive culture technique provides adhesion and sheltering objects for prawns, and achieves the purposes of improving yield and increasing economic benefits.
Owner:NINGBO ACAD OF OCEAN & FISHERY

Method for producing protein feed material by utilizing food wastes

The invention relates to a method for producing protein feed material by utilizing food wastes, belonging to the field of solid waste treatment. The method comprises the following steps: separating and crashing food wastes, and then carrying out heat-moisture treatment; adding bran in solid matters after solid-liquid separation, and inoculating appropriate among of microbes for anaerobe fermentation so as to obtain the protein feed material. Microbes of the solid matters are converted by adding 10-15 percent of bran, taking aspergillus niger, candida utilis and lactobacillus as mixed fungicides according to the ratio of 1: 2: 2 with the inoculation amount of 0.5-2 percent and carrying out anaerobic fermentation for 35-55h at 30 DEG C. The treated product reaches requirements of Feed Hygiene Standard (GB13078-2001) in China, is not easy to go bad and easy to be stored, and bovine-derived and ovine-derived materials of the product are measured to be both negative. The method can effectively kill pathogenic microbes in the food wastes, converts macromolecular proteins, such as animal-based protein, and the like into micromolecular proteins that are absorbed more easily, thereby also reducing the risks caused by isogenous invitro-cannibalism of food feed products.
Owner:TSINGHUA UNIV

Method for raising natural enemy insect southern minute pirate bug indoor in great deal and raising box

The invention belongs to natural enemy insect predacious stink bug raising technology field, more specifically a method for raising natural enemy insect southern minute pirate bug indoor in great deal and a raising box. The raising method comprises the steps of southern minute pirate bug adult and nymph raising; the existing southern minute pirate bug raising method is improved based on the biological characteristics of the southern minute pirate bug; and a method for raising the predacious natural enemy minute pirate bug in different states indoor is provided. According to the raising method, a suitable oviposition environment for the minute pirate bug is provided and the male and female pairing number can be increased; the cannibalism among the nymph and non-natural death are effectively reduced; the nymph survival rate and the imago obtaining rate are raised; and the tedious procedure of individual test tube raising, replacing and cleaning is simplified. According to the invention, the survival rate in each state is high; the procedure is simplified; the demand for raising the southern minute pirate bug indoor in great deal is satisfied; the enough insect source for deep indoor research is provided; at the same time, the key technology support for predacious stink bug propagation and raising and application in agricultural biological control are provided.
Owner:HUAZHONG AGRI UNIV

Composition for mitigation of insects and/or mollusca

A composition including a bait and a borate is used to mitigate a population of target insects and / or mollusca. The composition may include attractive by-products of agriculture and manufacturing with or without semiochemicals or biopesticides prepared as point source units (such as pellets or microcapsules). The by-products attract insects and / or mollusca to a food source for the purpose of mitigating the target organism. The bait is combined with borates and is pelletized and / or encapsulated into micron size particles. The pelletized and / or encapsulated particles are broadcast (spread) over areas infested with the target insect. The insects ingest the composition and regurgitate the composition to the remainder of the insect population. Significant mitigation of the population of the target insects results with little to no effect on the environment. The composition is also passed on to the next generation due to cannibalism of the target insects. A feed through process wherein the composition is fed to an animal and is contained in the manure of the animal deposited as a point source location. The composition is either mixed in with the food of the animal or placed directly in the gut of the animal using a ball and gun method. The target insects are attracted to the manure and upon ingesting the manure, ingest the composition and are dispatched.
Owner:AMERICAN NATURAL TECH SCI

System and method for cultivating anguilla marmorata

The invention relates to the field of aquiculture, in particular to a system and method for cultivating anguilla marmorata. The system for cultivating anguilla marmorata comprises a water purifying system and an anguilla marmorata pipeline perching system, wherein the water purifying system is used for decomposing and absorbing the excretion of the anguilla marmorata and organics in the anguilla marmorata cultivating system so as to ensure the water quality of the anguilla marmorata cultivating system, avoid using too much fresh water, reduce the pressure of the environment from the anguilla marmorata cultivating system, save electric consumption, and reduce the cultivating cost of the anguilla marmorata; simultaneously, the anguilla marmorata pipeline perching system improves the cultivating density of the anguilla marmorata and reduces the cannibalism rate of the anguilla marmorata. Compared with a running water open type cement pond cultivating method, the cultivating method of theanguilla marmorata cultivating system disclosed by the invention improvise the production rate of the anguilla marmorata by more than 25%, saves power consumption and fresh water resource by more than 40%, increases the amount of the anguilla marmorata cultivated in per square meter of water by more than 50%, and enhances the the comprehensive cultivating benefit by about 45%.
Owner:SHENZHEN LONGKEYUAN AQUALTURE CO LTD

Special LED illumination method and system for laying hen and breeding chicken scale breeding

The invention discloses a special LED illumination method and system for laying hen and breeding chicken scale breeding. LED lamps A or LED lamps B are mounted in an enclosed chicken house or a half-open chicken house. The average light intensity of the light reaching the chickens breeding plane and emitted by the LED lamps A or LED lamps B is 5-80 Lux, wherein the average light intensity is adjusted through an LED dimming controller or through the replacement of LED lamps of different power. The lighting time is controlled through a manner that a manual switch, a relay switch or an automatic timer is connected to a power supply. The dominant wavelength of each LED lamp A is 584.0 nm, the color temperature of each LED lamp A is 2700K QUOTE plus or minus 10%, the color ratio of R is larger than 20%, and the color ratio of B is less than 1.5%. Each LED lamp B is composed of white beads and red beads which are uniformly arranged in a cross manner with the ratio being 1:5-5:1. The method and system are mainly applied to laying hen and breeding chicken scale breeding in laying hen or breeding chicken houses, can improve the laying rate, can increase the egg yield, can reduce the poultry cannibalism, and can enhance the physical health of laying hens or breeding chickens.
Owner:HANGZHOU LANGTUO BIOTECH

Cuttlefish aquaculture pond capable of preventing fighting and cannibalism and easy to clean

The invention discloses a cuttlefish aquaculture pond capable of preventing fighting and cannibalism and easy to clean. The cuttlefish aquaculture pond comprises a ground surface, hanging frames, an aquaculture pond body, oxygen outlet heads, motors and a dirt collecting area. A platform is connected with the upper side of the ground surface, an oxygen pipe is arranged under the platform, feeding columns are attached to the interiors of the hanging frames, aquaculture barrels are arranged in the aquaculture pond body, and holes are formed in the aquaculture barrels; the bottoms of the aquaculture barrels are fixedly provided with a second filter screen, and the lower side of the second filter screen is provided with a first filter screen; a cuttlefish egg adhesion device is arranged above the first filter screen, and the oxygen outlet heads are connected with the oxygen pipe; the feeding columns are arranged behind the oxygen outlet heads. According to the cuttlefish aquaculture pond capable of preventing fighting and cannibalism and easy to clean, the feeding columns and the hanging frames are arranged, so that the problems that cuttlefishes are frightened and are likely to jet ink when bait is poured into the pond suddenly, accordingly the ink contaminates the environment in an aquaculture pond, people need to frequently replace water in the aquaculture pond, and water resource waste is increased are solved.
Owner:LINGNAN NORMAL UNIV

Method for cultivating Hemifusus tuba with net cage in hanging way

The invention relates to a method for cultivating Hemifusus tuba with a net cage in a hanging way. In the method, a single-layer cage-shaped cultivating cage tool consisting of a cage plate (1) with the diameter of 45-50cm and a polyethylene net (2) with the mesh size of 0.5-1.5cm is used for cultivating young Hemifusus tuba with the average height of 30-40mm and the average weight of 2-3g in a hanging way and 10-15 young Hemifusus tuba are cultivated in each cage. The method comprises the following steps of: filling the young Hemifusus tuba in the cultivating cage tool; hanging in a hanging pond at a water layer with the depth of 0.7-1.4m, wherein the distance between every two adjacent cages is 0.2-1m; feeding the Hemifusus tuba with fresh oyster with shell every 10 days; cleaning the net cage before feeding, cultivating until harvesting time of the Hemifusus tuba. The method disclosed by the invention improves the living environment of the Hemifusus tuba to the maximum extent and reduces the diseases caused by the pollution such as residues, wastes and the like, and reduces the cannibalism phenomenon, thereby effectively improving the survival rate and the growth speed of the Hemifusus tuba; simultaneously, the method can reduce the feeding quantity, the feeding time and the labor intensity.
Owner:GUANGXI UNIV

Freshwater shrimp blocking-net-type intercropping method

The invention discloses a freshwater shrimp blocking-net-type intercropping method and belongs to the technical field of freshwater aquaculture. A blocking-net-type freshwater shrimp and trionyx sinensis intercropping mode is adopted, and aspects like culture pond building, fry stocking, culture management and feed quality are comprehensively improved; freshwater shrimp and trionyx sinensis are separated by using a blocking net for respective culture, and freshwater shrimp small in body size can enter a deep water area to serve as living food for trionyx sinensis, so that feed consumption of trionyx sinensis can be lowered, and culture cost of trionyx sinensis is lowered while culture quality of the same can be improved; culture density of freshwater shrimp can be controlled effectively, cannibalism is reduced, and improving of culture quality and yield is facilitated. Ecological niche characteristics of different organisms like alga, water plants, grey chub, freshwater shrimp and trionyx sinensis are taken into consideration comprehensively, a proper intercropping proportion is set, ecological balance of a culture pond is maintained, and water quality is adjusted, so that the method is an environment-friendly and high-efficiency culture mode and suitable for large-scale popularization and application.
Owner:HUZHOU TEACHERS COLLEGE

Living body transportation method of Octopusochellatus seedling breeding and releasing

The invention discloses a living body transportation method of Octopusochellatus seedling breeding and releasing, and relates to the technical field of the living body transportation of the marine product culture. Rice hulls are used as a substrate, the rice hulls are softer, and cannot hurt the Octopusochellatus young seedlings in the shaking process. The rice hulls can be suspended in the seawater so as to form countless enclosed spaces, so the probability of cannibalism of the Octopusochellatus young seedlings is reduced. The use water for raising and transporting the Octopusochellatus young seedlings is the seawater in which suspended particles are removed, and the used seawater for raising and transporting the Octopusochellatus young seedlings is the same as the seawater of the natural spawning site sea area of Octopusochellatus seedling breeding and releasing, so the Octopusochellatus young seedlings can adapt the natural sea area environment as soon as possible, the effect of the environmental change to the survival rate of the Octopusochellatus seedlings is reduced, and the survival rate of the seedlings is improved. The method has the advantages of no anesthetics, no food quality and safety risk, no gradient cooling, no effect to the survival rate of the Octopusochellatus young seedlings, cheap cost, security and environmental protection, and high survival rate of the seedlings.
Owner:日照市海洋与渔业研究所

Out-of-season portunus trituberculatus larva breeding method

ActiveCN110338113ARealize full artificial breedingEliminate industry problems of seedling raisingClimate change adaptationPisciculture and aquariaDevelopmental stageWater quality
The invention discloses an out-of-season portunus trituberculatus larva breeding method. The method comprises three steps of selection of parents, hatching of ovigerous crabs and larva breeding. The method has the advantages that the artificially bred parents are selected to achieve full-artificial breeding, the industry problem of relying on sea fishing for breeding wild ovigerous crabs is eliminated, and large-scale larva breeding is facilitated; mid-September is selected as the time for hatching the ovigerous crabs, which avoids the precocity of crab larvae in the current year and also ensures larger specification when the products appear on the market in June-July of the next year; according to the developmental stage of the crab larvae, different anti-disability opacifying agents areselected, reduce the cannibalism of the crab larvae, make the crab larvae develop simultaneously and rapidly, also have a function of regulating the water quality, and greatly increase the survival rate; specially, water is changed by adopting a crab larva taking-out mode, the workload is not increased, but an artificial selection effect on the crab larvae during crab larva taking-out is achieved,and sick and weak crab larvae with poor vigour can be eliminated, thereby improving the whole quality of the crab larvae.
Owner:MARINE FISHERIES RES INST OF ZHEJIANG

Low-dam high-net swimming crab cultivation water storage pond having self-discharging function

The invention discloses a low-dam high-net swimming crab cultivation water storage pond having a self-discharging function. A water storage pond space is constructed according to characteristics of swimming crabs, the rectangular water storage pond is formed by being surrounded by a pond dyke built on a beach, the upper end and the lower end of the water storage pond are arranged in the same direction as the tiding direction, an annular ditch is disposed between the periphery of a beach face and the pond dyke, the pond dyke at the upper end and / or the lower end of the water storage pond is provided with an overflow dam, and the beach face is internally at least provided with one middle ditch in the same as the tiding direction. The water storage pond comprises an ingestion site, an inhabiting site and a hibernating site, pollution discharge is performed by utilizing tidal energy, an all-dimensional ecological environment space for inhabitation, oversummer and overwintering and the like of the swimming crabs in a juvenile crab bearing period, a growth period, a mating period and a fattening period, an energy-saving self-discharging ecosystem is formed, various beach resources and natural energy are fully utilized, cannibalism is reduced, diseases are prevented, the survival rate is improved, the quality and yield are improved, and the ecological cultivation and healthy development of the beach are promoted.
Owner:宁波奉化吉奇水产生态养殖场

Pan-type fry breeding method for Procambrus clarkii

The invention relates to a pan-type fry culturing method for Procambrus clarkii, in particular to completing the process of breeding Procambrus clarkii fries in a pan-type container, belonging to the technical field of aquiculture. The method is characterized by comprising the following four steps of fry breeding pan selection, fry breeding preparation, parent shrimp stocking and management and shrimp fry breeding. Only one female shrimp or ovigerous shrimp is put in a fry breeding pan, and therefore, the specification of bred shrimp fries is regular, the cannibalism rate is reduced, and the shrimp fry survival rate is improved. The fry breeding pan is put in a dark fry breeding room, and therefore, the development rate of the sex gland of the female shrimp is high; the fry breeding operation is convenient, and the fry breeding efficiency is higher than that of the traditional fry breeding mode. The pan-type bred fries are not influenced by the change of the external climate; the shrimp fries hatched out on the same day are raised under the same ecological condition, being beneficial to developing mass selection. The invention is suitable for being popularized and applied in domestic Procambrus clarkii breeding farms and scientific research departments.
Owner:FRESHWATER FISHERIES RES CENT OF CHINESE ACAD OF FISHERY SCI

Epinephelus culture method

The invention discloses an epinephelus culture method. An outdoor ecological pond and an indoor fry breeding pond are connected through a pipeline, alga water in the outdoor ecological pond is pumpedinto the indoor fry breeding pond, a water discharge tube is arranged at the bottom of the indoor fry breeding pond and communicates with the outdoor ecological pond, tail water in the indoor fry breeding pond is discharged into the outdoor ecological pond, then a relay circulation epinephelus fry culture system with indoor fry culture and outdoor alga culture is formed, respective defects of ecological fry culture of an epinephelus pond and fry culture of factory-like circulation water are solved, advantages of the two fry breeding methods are taken into play sufficiently, SS type rotifera ofa sufficient density are provided as a starter feed for larva fishes starting to take feed at a starter stage, it ensures that most larva fishes can start to take feed smoothly at a first moment at the starter stage, live baits of a high density are continuously maintained at a larva fish development stage, all larva fishes can develop relatively synchronously at an early stage of fry breeding, individual differences of a same batch of fries can be reduced as much as possible, cannibalism can be avoided, the fry number can be greatly increased, and the fry rate can be increased.
Owner:SHENZHEN BASE OF SOUTH CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI +2

Method for domesticating mandarin fish fries

The invention relates to the field of fish culture, and aims to provide a method for domesticating mandarin fish fries. The method comprises the following steps: selecting mandarin fish fries with consistent body lengths and weights as domesticating objects; putting the selected mandarin fish fries into a domestication pool for acclimatization, carrying out cluster training for three days, and then sequentially carrying out eight-day chilled bait fish domestication, nine-day soft granular feed domestication and nine-day hard granular feed domestication. According to the method provided by theinvention, chilled bait fishes and a soft granular feed are used as intermediate domestication transitional baits for domesticating the mandarin fish fries which are subjected to cluster training, themandarin fish fries are subjected to continuous domestication to completely eat a hard granular feed, and a certain amount of the adapted bait in the previous stage is continuously fed after the newbait is fed in each feed changing process so as to ensure that the mandarin fish fries are fed fully, the probability of cannibalism is then reduced, the domestication survival rate and the growth rate are effectively improved, the operation is simple, and the large-scale production is facilitated.
Owner:FUJIAN TIANMA TECH GRP

Combined LED light source for reducing cannibalism rate of garrupa and application thereof

The invention provides a combined LED light source for reducing the cannibalism rate of garrupa and application thereof. According to the method, the purpose of reducing the cannibalism rate is achieved by combining the environment control technology and an accurate feeding manner by means of the environment control technology of creating a specific light environment, the illumination time and the illumination intensity in an industrialized garrupa aquaculture workshop. The method is specially developed according to the avoidance tendency of main garrupa culture species such as saddletail groupers, pearl gentian groupers and epinephelus septemfasciatus to the specific spectra, light intensity and illumination period and the appetite regulation and control rules of epinephelus coioides juveniles. By means of the method, the cannibalism of the garrupa can be effectively restricted, and economic losses caused by cannibalism during the intermediate culture period of industrialized garrupa seedlings are remarkably decreased. Moreover, operations is easy and convenient, the automation degree is high, the health, safety, energy conservation and environment protection are realized, and the method has high application and popularization value.
Owner:YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
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