Hybrid breeding method of Lutmria maxima jonas and Lutraria philippinarum

Abstract

The invention discloses a hybrid breeding method of lutmria maxima jonas and Lutraria philippinarum. The lutmria maxima jonas grows rapidly and is high in price, but cultivation is affected by bottom tide, storm and diseases, and annual fluctuation of the output is large. The breeding mode for Lutraria philippinarum is simpleand economic effect is obvious, but the disease resistance of the young Lutraria philippinarum is poor, and it is difficult to artificially breed. The method comprises the steps of: carrying out interspecific hybridization according to the situation that lutmria maxima jonas and Lutraria philippinarum are geographically isolated and different in reproductive biology characteristics, and breeding filial generation with merits such as strong disease resistance and fast growth speed. According to the invention, the measures such as purchasing and transporting of parent shellfish, domesticating of the parent shellfish, artificial fertilization and hybridization, incubation and superior varity selection, cultivation of planktonic larvae, larval metamorphosis, juvenile mollusk cultivation and intermediate cultivation in a sear area are adopted. The hybrid breeding method is scientific and reasonable in technological process and strong in maneuverability, and hybridization of two types of geographically isolated clams belonging to Lutraria is achieved. The method disclosed by the invention is fewer in occupied resources and low in cost, and natural resources are fully utilized.

Description

technical field

[0001] The invention relates to a method for binary hybrid breeding of marine bivalve molluscs, in particular to a method for hybrid breeding of giant otter clams and Australian otter clams, and belongs to the technical field of aquaculture breeding. Background technique

[0002] The giant otter clam (Lutmria maxima jonas) and the Australian otter clam (Lutraria philippinarum) belong to the subclass (Mactracea) of the class Lamellibranchia, and the genus (Lutraria) of the clam family (Mactridae). , its tender meat, delicious taste and rich nutrition, is a rare seafood treasure that is liked both at home and abroad. In nature, the giant otter clam mainly lives in the subtidal zone in the southern waters of my country to the sandy muddy seabed with a water depth of 10 meters. The Australian otter clam mainly lives in the Vietnamese sea area of ​​the Beibu Gulf, and is distributed along the coasts of Southeast Asia such as Australia. Both the giant otter clam a...