5 results about "Copepod" patented technology

The application provides an indoor breeding method of Plectropomus leopardus, which comprises the following steps: disinfecting an indoor cement pool, laying air bubble stones on the bottom of the cement pool, placing a screen gauze into the cement pool so that the screen gauze adheres to the wall of the cement pool, adding a lighting lamp, adding seawater, and putting Plectropomus leopardus larvae into the cement pool; after the larvae are put into the cement pool, adjusting the water flow speed, feeding fresh and live copepods, and pulling the screen gauze up and down during feeding; stopping feeding the copepods, feeding the compound feed, adjusting the water flow speed, and pulling the screen gauze up and down during feeding; and meanwhile, illuminating 1-3 times per day. The screen gauze is additionally arranged in the indoor cement pool, the cement pool is divided into multiple parts, the feeding domestication and the light domestication are combined with the net pulling and the water flow speed adjusting, the Plectropomus leopardus has good adaptability to the indoor cement pool breeding environment, the growth performance of the Plectropomus leopardus is improved, the rapid growth of the Plectropomus leopardus is promoted, and the breeding cycle of the Plectropomus leopardus is effectively shortened.

This invention discloses a method for preparing and applying a low-chitin enzymatic hydrolysed cricket feed based on Trichoderma and copepod autolysins, belonging to the field of aquaculture technology. This invention employs a combined enzymatic hydrolysis method using Trichoderma activation and copepod autolysins, which not only significantly reduces the chitin content in the cricket feed (to below 1%), but also optimizes the nutritional composition of the feed by introducing marine functional proteins from copepods. This not only replaces fishmeal in feed but also contributes to the growth and health of aquatic animals.

The invention discloses a cultivation method for preventing skin diseases of hippocampus kelloggi larvae, and belongs to the technical field of aquaculture. The method comprises the following steps: a bait preparation step: mixing artemia nauplii and copepods to prepare composite bait; disease prevention and management: adding a zanthoxylum nitidum water extract into the water body; and a special bait feeding step: taking the compound bait as a unique bait source for feeding, and preventing skin diseases through a zanthoxylum nitidum aqueous extract during the feeding process. The method solves the technical bottlenecks of low survival rate, abnormal intestinal development, difficulty in domestication and bacterial infection of the hippocampus kelloggi larva in the mouth opening stage. Experiments show that the method can significantly improve the survival rate and growth performance of the hippocampus kelloggi larvae and improve the health state of the hippocampus kelloggi larvae. On one hand, by promoting intestinal development, the digestion and absorption functions and the immune level of the body are effectively improved; on the other hand, common diseases such as skin ulcer and tail rot caused by bacterial infection can be obviously prevented, and a reliable guarantee is provided for healthy breeding of the hippocampus kelloggi.

The invention belongs to the technical field of aquaculture, and discloses a method for large-scale cultivation of seahorse initial feed. The invention discloses a cultivation method of copepods. The invention provides a cultivation method of copepods (such as Pseudodartinia andersonii), which can be used for cultivating copepods such as Pseudodartinia andersonii on a large scale and realizing artificial cultivation and large-scale high-density cultivation of the copepods. Compared with a conventional culture mode, the culture method provided by the invention can meet long-term large-scale high-purity Pseudodartas andersonii supply, the growth rate of Pseudodartas andersonii is increased by 62.7% compared with that of conventional culture of Pseudodartas andersonii, a large amount of manpower and material resources are saved, a reliable initial feed source is provided for large-scale factory hippocampus culture, and the culture method is suitable for large-scale industrial hippocampus culture. And a foundation is laid for development of high-quality biological baits in the aquaculture industry.

The invention discloses a method for cultivating, catching, strengthening and disinfecting Hucho taimen, and belongs to the technical field of aquaculture. The method comprises the following steps: carrying out symbiotic low-cost cultivation of unicellular algae and substrong Hucho taimen in an outer pond through an intermittent fertilization strategy; a waterwheel aerator is used for forming directional water flow, and the copepods are mildly collected in a 120-mesh temporary storage net cage to achieve low-damage fishing; specially-made fermented feed is fed into the net cage for precise nutrition enhancement for three days, so that the ratio of DHA to EPA in the body reaches 4: 1; and finally, performing efficient disinfection under specific parameters. The method systematically solves the problems of high cost, large damage, uneven nutrition and large biological safety risk in the traditional process, can stably obtain high-quality live bait with the survival rate not lower than 85%, high nutritional value and no specific pathogen, and has remarkable industrial application value.