Commonly known as red hair moss, red hair algae, calendula, red hair, is a red hair head, red hair dishes, the Department of economic algae. It is a highly nutritious, high-protein, low-fat algae with high food value and medicinal value. It is also a kind of seaweed and wide temperature seaweed. Rich in the East China Sea and the South China Sea coast, widely distributed in Fujian Province, Nantian Town, Putian City is one of the main producing areas of the red hair algae, breeding area of ​​1800 mu, there is a gratifying situation in both production and sales. The price per kilogram after processing is more than 300 yuan, and the products are sold well in South Korea, Japan, Taiwan, Hong Kong and other countries and regions. It has the advantages of low investment, low cost, high efficiency, low risk, and easy acceptance by the masses. It is very important for the success of the single-stage spores of Trichophyton spp. in the whole culture process. This article will provide some references for the farmers in the process of collecting single spores (covering seedlings) based on our past ten years of breeding practices. First, the pre-culture material handling points: Covering the Vylon curtain (called sub-curtain) to be clean. 1. If it is a newly-purchased Vinylon curtain, first put in fresh water for 5 to 10 days, and then repeatedly stirring and scrubbing until no white foam appears, then put the cleaned Vinylon curtain at 90°C. Freshwater stains were dried 10-15 minutes later. In the end, the villus in the Velcro strips is burned off with a slight fire, so that the C. krylovii seedlings on the rear curtain can be firmly attached. Otherwise, the C. kikura seedlings attached to the strips look more dense. In fact, a considerable part of them is Attached to the villi in the sashes, once the seedlings are separated, the kaleidella seedlings attached to the villi will gradually fall off with the impact of seawater waves, so that the kaleidoptera seedlings on the sashes will become thin. 2. If you are using an old vinylon shade, rinse it with fresh water and dry it in the sun before using it. Second, the cultivation of red algae covered curtain (called the parent) treatment points: the algae must be clean. Extending the sun-time: Getting the red algae curtain to the sun is one of the effective measures to remove the algae on the curtain. The sun exposure time may depend on the number of algae or species of algae propagated on the red algae algae. In the case of diatoms, the diurnals of the dinoflagellate on the sashes will turn black when exposed to the sun, and the algae hanging from the sashes by hand will not spread but will be hardened; if it is green algae (brassica oleracea), Then the drying time needs to be longer (one to two days). If the Brassica oleifera breeds densely, it should be dried in fresh water for 5 to 15 minutes, then dried and put back into the sea for 2 days before the Brassica becomes white. And died. Third, single spore pay attention to two times. One is in late September of the lunar calendar and the other is in early October of the lunar calendar. The single spore release of the red hairy algae is generally 14 to 18 points, but the highest peak of scattering is 16 to 18 points. During this time, the tides rose to the covered red algae curtain, and the single spores were dispersed in large amounts, and were attached to the covered with the waves. On the curtain. After 2 to 3 days of coverage, a purple-red spot on the sash can be seen. This spot is the red-algae seedling. IV. Routine management points: Prevent the growing of the covered curtains from growing up with mixed algae or sludge. After covering, often observe when the ebb refraction occurs. Once the slats are found to contain breeding algae or attached with sludge, they should be immediately dismantled and treated, and the sun can be returned to the original culture after the slats are completely dry. However, it must not be washed directly with seawater. Since the red hairy algae seedlings are not firm at first, the seedlings will come off after washing and the covering time will be prolonged. V. Sub-leaf seedling points: After covering, if the sub-curtain has a more even distribution of purple-red spots, it can adopt the “subdivision first, then sub-division†gradual sub-seedling method, which generally requires 8 from cover to seedlings. For 10 days, farmers are able to postpone the time for seedlings by 10 to 20 days in order to facilitate the washing of the curtains and daily management, as well as to increase the concentration of single spores and the opportunity for attachment in the aquaculture sea area and increase the seedling density.
