Mussels are one of the earliest species of shellfish cultivated in China. Their breeding area once dominated the shallow sea culture. With the rise of shellfish farming represented by scallop scallops in the 1990s, large-scale breeding of mussels became a burden for shallow-sea bream culture. The farmers had tried every means to remove the mussels on the farm trusses. Prevents the growth of other species. However, with the emergence of large-scale deaths of scallops, the superior characteristics such as easy attachment, rapid growth, high yield, and low cost of mussels have emerged, once again becoming the dominant species in some regions. In 2001, a breeding company in Donggang District, Rizhao City, Shandong Province, produced 4,000 kg of mussels for each truss and achieved a good value of 2,000 yuan.
The farming techniques adopted by them are introduced as follows: 1. Aquaculture areas and equipment 1. Aquaculture areas in aquaculture sea areas should be selected for open sea areas with fresh water and smooth water flow. Due to the disadvantages of poor water exchange, lack of bait, and easy water pollution in the Neiwan-type sea area, the cultured mussels are not full-scale and have diesel and other odors.
2. The truss cultured in truss truss is a truss for breeding scallops. The effective length of general trusses is 80 meters. The floats are suspended and floated, the drift length is 3 meters, and 30 to 40 floats are added at a time.
3. Breeding equipment for farming equipment Mussels are made of two or three ropes made of rubber, 1.5 to 1.8 meters long, weighing 1 to 1.5 kilograms, on a 2 meter long sling, and weighing about 0.5 kilograms of rock. .
Second, the introduction of breeding equipment every year in late March began every day to detect the plump of mussels, such as the discovery of mussel abruptly thin, a large number of spawning, can be put in accordance with the aquaculture breeding equipment in a timely manner, naturally picking seedlings.
Third, the management of the management of mussel farming is very simple, and the daily work is to inspect the sea area, prevent broken frames, and adjust the buoyancy in time.
Fourth, harvest
1. During the summer, aquaculture ridges, including artificially-fed aquaculture equipment, floating stalks, roots, slings and floats, will have a large number of mussels attached. According to the timely harvesting of seedling density and area, general mussels grow to 1 cm to 1.5 cm in July to start harvesting. The first is to sell seedlings to other farming units, and the second is to sell to shrimp farmers for bait. The mussels attached to the rubber should be peeled off at the time of harvest. At the same time, the mussels with good adhesion (about 0.2 kg to 0.3 kg per piece) should be selected and clamped on the rubber, with an average of 5 to 6 pieces. Such as mussels can not block into the method can be used Bao Miao, with 20 mesh mesh package 1 kg to 1.5 kg seedlings in rubber, tied with a rope, 3 days after the removal of mesh. Judging from the actual situation of breeding, the method of clamping and seedlings is convenient, and the method of raising seedlings is troublesome, but the attachment and growth of mussels cultivated by the method of seedling cultivation are better than the method of clamping seedlings. Most of the mussels on floating stalks, slings, roots and floats are collected, leaving only about 5% for their continued growth. A cage can receive more than 1,200 kilograms.
2. All harvests are harvested before and after the Spring Festival in accordance with the market conditions. Harvested trusses will yield more than 2,800 kg of mussels.
Alpsmile , https://www.alpsmile.com