Shrimp can be fattened and temporarily raised in low dam, high net culture pond or shrimp pond, and the area depends on the production scale. The bottom material is required to be soft mud or mud, and there can be no black mud. The water depth in the shrimp pond is above 1.0m to avoid high temperature death in summer. Temporary shrimp or lean shrimp can be caught artificially on the beach, or unharmed and dehydrated shrimp can be caught by trawl or net. Regardless of size or specification.

Seasonally speaking, it can be fattened and temporarily raised all year round, but its growing season is from April to 165438+ 10. In winter, squid can overwinter naturally, but it cannot grow. So April ~ 1 1 temporary fattening is better. According to the market demand, specifications, differences in fatness, and the degree of female gonad development (raw paste), grasp the big (fat) and keep the small.

At present, the places with shrimp natural resources are often islands far away from towns, and the transportation is inconvenient. Most of the shrimps caught are used as fertilizer or processed into fish meal, which has low utilization rate and no economic benefit, resulting in great waste of resources. The purpose of temporary storage and storage is to rationally develop and utilize the existing natural resources, temporarily feed and raise them, store a certain amount, and then transport them to towns for live sale or export, so as to earn regional or seasonal price difference, improve the value of shrimp, develop shrimp fishery and improve economic benefits.

Site preparation

There are two common methods of temporary culture: temporary culture in cement ground and temporary culture in cage. Temporary feeding places are directly related to the effect and economic benefits of temporary feeding. When choosing a temporary farm, the following conditions should be considered:

Close to the sea, close to the fishing ground: the temporary farm is close to the sea, which is convenient for water injection and drainage in the cement pool, and it is also convenient to directly set cages in the sea for temporary breeding. Close to the fishing ground, there is a purchase dock, which can facilitate the purchase, the transportation time is short, the shrimp is not easy to dehydrate, the physical consumption is low, and the temporary rearing effect is good. Convenient transportation: the transportation time of temporary shrimp should be short to improve the survival rate of transportation. The island needs sea transportation, and the mainland needs roads to transport vehicles in and out.

Clean water source: whether it is temporary cultivation in cement pond or cage, the water quality should be clean and pollution-free, and the dissolved oxygen and salinity should be suitable for pH value and normal. For temporary maintenance of cement ponds, it is also necessary to ensure that there is sufficient water source, and the change of water quantity is not affected by tidal fluctuations. The water for temporary cultivation needs to be precipitated to improve the survival rate of temporary cultivation. If the cement pool is kept temporarily, it needs sunshade facilities: Squid is Nocturnal Animals, and hates sunshine and strong light, so the cement pool should be built indoors. If it is built outdoors, it needs sunshade facilities and can keep out the rain. When necessary, thermal insulation facilities should also be set up.

Temporary cement culture pond for shrimp has simple facilities and can be adapted to local conditions. If conditions permit, it should be specially built, and temporary swimming pools for swimming crabs, prawn ponds and eel ponds can also be used. Temporary breeding facilities mainly include temporary breeding ponds, sedimentation or sand filters, water injection and drainage systems, aeration equipment and shading equipment.

The area of temporary ponds depends on the scale of production, ranging from tens of square meters to hundreds of square meters. Generally, the pool is 50 ~ 60 cm high and the ice depth is 30 ~ 40 cm. Because of the benthic life of shrimp, most of them crawl at the bottom of the pool, so they don't have much time to swim. In order to prevent shrimp from piling up in clusters, the shape of the pool is round. If it is raised temporarily for a short time, there is no need to spread sediment at the bottom of the pool, which is also convenient for operation.