30 results about "Palaemon carinicauda" patented technology

The invention provides a method for harvesting and temporarily culturing sepia esculenta in a cuttlefish-shrimp polyculture pond. The method comprises steps: selecting a common ground cage for capturing prawns and a grading catching ground cage used for a prawn-crab polyculture pond; using the grading catching ground cage to catch prawns, and then using the common ground cage to capture cuttlefishes; after the cuttlefishes are caught, oxygenating and transporting the cuttlefishes with water; preparing a buffer pond and a temporary culturing pond; putting the cuttlefishes transported with water in the buffer pond to adapt for 2-3 hours, and transferring the cuttlefishes with water to the temporary culturing pond to temporarily culture; in temporary culturing, covering a blackout cloth on the temporary culturing pond, in the first week of temporary culturing, feeding fresh and alive crablats, in the second week, feeding fresh and alive palaemon carinicauda, after two weeks, feeding iced fresh small trashes; after 20-30 days of temporary culturing, using the sepia esculenta for live selling. The survival rate of the sepia esculenta after temporary culturing can reach higher than 90%. The method completely realizes live selling of the sepia esculenta, and improves economic benefits of the sepia esculenta cultivation.

The invention provides an indoor overwintering method for a palaemon carinicauda parent. The indoor overwintering method for the palaemon carinicauda parent comprises the following steps of selecting and processing a parent overwintering pond, controlling the parent ratio, density and water temperature, and performing the overwintering period feeding management technology. The indoor overwintering method is an overwintering method suitable for the palaemon carinicauda biology, behavioristics and ecology. According to the method, the overwintering survival rate of the palaemon carinicauda can be improved to a larger extent, the overwintering survival rate can be above 80%, and the expenditure can be saved by 30%. According to the indoor overwintering method disclosed by the invention, diseases can be prevented from spreading, the coal use amount is reduced, energy saving and emission reduction can be realized, the overwintering survival rate and the economic benefit are improved, and the technical guarantee is provided for the breed conservation of the superior clones of the palaemon carinicauda. The indoor overwintering method is favorable for accelerating the healthy and sustainable development of the palaemon carinicauda breeding industry in China.

The invention discloses an annular continuous multi-batch artificial culture method for palaemon carinicauda, belonging to the technical field of aquaculture. The method comprises the steps of selection and indoor wintering of parent shrimps, wintering incubation and parent shrimp rearing, pond stocking of incubation parent shrimps, first-batch culture harvest, parent selection and remaining, second-batch culture harvest or simultaneous parent selection and remaining and third-batch culture. Through indoor culture of parent palaemon carinicauda, incubation parent shrimps are obtained in advance. By reasonably arranging the parent shrimp stocking and commodity shrimp harvest time, annular multi-batch culture is realized, and the utilization ratio and economic benefit of a culture pond are increased. Two-batch culture is realized annually in the provinces of Shandong, Jiangsu and Zhejiang in China, and three-batch culture can be realized in regions south of Guangdong province in China.

The invention provides a method for improving the survival rate of coilia ectenes parents during an artificial breeding period. The method is characterized by comprising the following steps of adopting artificially-bred offspring coilia ectenes adult fish which is more than two years old as reserve parents of artificial breeding; in the cultivating process of the reserve parents, pulling a net and turning over a tank for 2-3 times; before the artificial breeding, pulling the net of the reserve parents and training for 2-3 times; selecting the coilia ectenes adult fish with a completely-developed gonad as parents; conveying the selected parents by using a light-shielding dark bucket; slightly operating with water and naturally fertilizing, wherein the dosage of an oxytocic hormone is not more than 30 micrograms per kilogram and the normal saline amount per fish is not more than 0.5ml, a hasten parturition tank is circular or square; shielding and regulating; continuously micro-inflating; after the parents lay eggs, carrying out postpartum intensified cultivation; gradually adding seawater to adjust the salinity to 5-10, wherein the released density is 20-40 per tank; continuously inflating and controlling the water temperature to 22-25 DEG C; feeding opossum shrimps and palaemon carinicauda for two times per day; determining the feeding amount of the next time according to the food ration; and sucking the bottom for one time per day to remove dead fish and shrimps in time.