73 results about "Argopecten irradians" patented technology

The invention relates to a method for cultivating a new variety of hybridized and backcrossed Argopecten purpuratus. The method is characterized by comprising the following steps of: selecting excellent individuals in a hybridized first filial generation family or group of Argopecten irradians and the Argopecten purpuratus; backcrossing the excellent individuals with the Argopecten purpuratus to establish a backcrossed family or group; selecting hermaphroditic excellent individuals with good representation in the backcrossed family or group; and continuously cultivating at least third generations of self-bred families to obtain the new variety of the hybridized and backcrossed Argopecten purpuratus having the advantages of steady heredity, rapid growth, large individuals and wide temperature tolerance range. According to the method provided by the invention, the new variety can be cultivated in sea areas in the north, such as Qingdao, Dalian and the like; and, compared with the Argopecten irradians, the yield at the same year is increased by more than 30%.

The invention relates to a breeding method for a new marine backcrossed scallop variety. The breeding method is characterized in that: a best individual is chosen from the first filial generation family or group of Argopecten irradians and Argopecten purpuratus, and is first backcrossed with Argopecten irradians to establish a backcrossed family or group, a best hermaphrodite individual is then chosen from the backcrossed family or the backcrossed group with excellent performance, at least three generations of selved families are then bred in succession, and thereby the new marine backcrossedscallop variety which has the characteristics of stable heredity, fast growth, big individual and wide temperature tolerance range is obtained. The new marine backcrossed scallop variety bred by the breeding method has the characteristics of both Argopecten irradians and Argopecten purpuratus, i.e. fast growth, big individual, wide temperature tolerance range and stable heredity, and can be cultured in northern sea areas such as the sea areas of Tsingtao and Dalian, and moreover, the current yield of the new marine backcrossed scallop variety is increased by more than 30 percent in comparisonwith the current yield of Argopecten irradians.

The invention relates to a method for cultivating hybridized and backcrossed Argopecten product fries. The method is characterized by comprising the following steps of: selecting excellent individuals that only a female area grows in a hybridized first filial generation family or group of Argopecten irradians and Argopecten purpuratus; synchronously maturing the selected excellent individuals with excellent individuals of the Argopecten purpuratus; inducing the hybridized first filial generation individuals to ovulate by using a conventional shade drying and temperature stimulation method; simultaneously, stimulating the Argopecten purpuratus to spawn and discharge seminal fluid; filtering through 500-mesh bolting cloth to obtain the seminal fluid of the Argopecten purpuratus; fertilizingthe seminal fluid of the Argopecten purpuratus with the hybridized first filial generation eggs; carrying out larva cultivation and fry intermediate cultivation according to a conventional method after hatching; and thus obtaining the hybridized and backcrossed Argopecten product fries having obvious heterosis. The hybridized and backcrossed marine Argopecten fries cultivated by using the method provided by the invention simultaneously have the characteristics of the Argopecten irradians and the Argopecten purpuratus; compared with the Argopecten purpuratus, the hybridized and backcrossed Argopecten product fries have obvious advantages on growth, individual size and temperature tolerance, therefore, the hybridized and backcrossed Argopecten product fries can be cultivated in sea areas inthe north, such as Qingdao, Dalian and the like; and, compared with the Argopecten irradians, the yield at the same year is increased by more than 50%.

The invention discloses a bay scallop breeding method. The bay scallop breeding method includes steps of 1) selecting a pond with sand substrate and disinfecting with water by bleaching powder or quick lime; 2) feeding water lower than 0.5 meter and adding fertilizer in ten days before juvenile scallops are placed into the pond, and feeding water to the highest level in two to three days before the juvenile scallops are placed into the pond; 3) setting a floating stem on a raft and fixing two ends of the floating stem by timber piles; 4) arranging a juvenile scallop curtain and utilizing a mesh bag with 60 meshes until the juvenile scallops bred to more than 400micrometers; 5) adding a mesh sheet into the mesh bag for supporting a juvenile scallop collecting bag; 6) gradually increasing daily water refreshment quantity in the second day after the juvenile scallops are placed into the pond; 7) keeping increasing water refreshment quantity within 3 days before dividing the scallops; 8) uniformly distributing the juvenile scallops on the mesh bag in two days after the juvenile scallops are subpacked, and moving the juvenile scallops to the sea and waiting for sales. By the above technical scheme, the bay scallop breeding method adopts scientific breeding technology, the bred scallops are fast in growth and fresh in meat, and the bay scallop breeding method is higher in output that other breeding methods.