#谣零零计划 #
This year's crayfish farming is very unsmooth, there are many people, the price is low, the cause of the epidemic, there are few people who eat, in short, there are very few people who make money.
The lack of value is manifested in the fact that the crayfish in the rice and shrimp fields of most farmers are small, rarely more than 5 yuan, and the price is only about 5 to 8 yuan. Therefore, the amount is low and the price is low, and it is still not profitable.
However, if the crayfish is still priced for more than five dollars, at least 14 yuan. This year there are also profitable crayfish farmers, it is more interesting to say, a small number of money-making farmers and friends are not taking the "right way", are in a small piece of rice field directly after the shrimp fry breeding, not to mention this method is still quite good, raised crayfish are big and beautiful. Basically, there are more than five dollars, and the price is about 16 yuan, which is relatively profitable this year.
Many people want to farm crayfish this way next year, and some farmers are also ready to bulldoze the ring ditch to raise shrimp.
It is true that the rice and shrimp fields with ring ditches do not look as large as the rice fields that have not excavated the ring ditches, so many people want to bulldoze the ring ditches.
My point is that there is really no need to bulldoze the ring ditch, but if your shrimp field is not as large as the ring ditch crayfish, it is more convenient. Rice and shrimp fields with ring ditches can also raise prawns.
1. Seed preservation: To put it bluntly, the impact of the rice and shrimp field excavated in the ring ditch on the size of the crayfish is not very large, as long as the breeding density is controlled and the water quality is good, the shrimp can be produced. The most important role of ring ditch in the process of crayfish farming is to preserve seeds. Simply put, crayfish farmers need to breed and raise themselves. There is no need to stock shrimp fry and shrimp separately, which can save a lot of money, which was really necessary when the price of crayfish was high in previous years. In the past few years, shrimp fry and shrimp seeds have cost more than 28 yuan, and the highest time has even reached the price of more than 40 yuan a catty. Therefore, it is necessary to keep seedlings and seedlings yourself.
Due to self-propagation, breeding shrimp, shrimp fry and adult shrimp are farmed together, the growth rate is not the same, feeding is not easy to manage, and most of the crayfish that grow out are of different sizes. So the quality is not very good.
And there is no ring ditch to raise crayfish, mainly rely on the centralized release of a batch of shrimp fry of the same size for centralized breeding, master the breeding density, it is very good to produce prawns, so this is why so many people want to raise the reason.
2. Convenient irrigation: Ring ditches also play an important role in the process of crayfish farming, that is, it is convenient for irrigation and drainage. Rice cultivation in rice shrimp fields requires water, and the fields that need to be dried can be regulated through ring ditches. In the process of crayfish farming, the water level is regulated according to the low temperature, which is also done through the ring ditch, which can increase the water storage capacity in a word, so that the water level can be changed.
Here need to be explained in particular, in fact, the shrimp field ring ditch does not have much impact on the growth size of crayfish, as long as the water depth is more than 10 cm, the aquatic grass layout is reasonable, there is a certain amount of fertility, the same can raise prawns and green and red shrimp. This is why this year, some farmers can directly go to the water without digging a ring ditch to stock shrimp fry in rice fields, and they can still raise crayfish for more than 6 yuan. And this has little to do with whether there is a ring ditch or not.
So according to the current market situation, there is no need to backfill the ring ditch, because the expenditure of the backfill excavator is not cheap, the price is more than 200 yuan an hour, can not be crossed, originally did not make money, why spend the wrong money again?
Of course, rice fields without ring ditches can directly buy seedlings to put in. Crayfish farmers with ring ditches, it is best to divide the rice shrimp field into two pieces on the basis of self-propagation and self-cultivation, according to the ratio of 1:4, small pieces do seedling fields, large pieces are made into shrimp fields, there is no need to fill the ring ditch, so that breeding separation, perfectly solve the problem of inconsistent growth rate, but also reduce the breeding density, the same can produce prawns, but it should be noted that this year it is best to use quicklime clear ponds, you can remove old shrimp, next year catch a part of the shrimp fry into the seedling field.