Aquatic experts reminded shrimp owners that excessive seeding would cause breeding failure. Cultured green prawns have the advantages of low seed use, strong fertility, low cost, low risk, and high benefits. Generally about 0.5 kg per mu can be used to hold eggs. &127; Under the circumstance of picking up clear ponds and forbidding wild fish from entering the pool, meticulous scientific feeding can produce 50 to 75 kilograms of shrimp per acre. However, many of the shrimp farming households, especially some newly-developed farmers, often do not understand the culture technology of the green shrimp. They tend to listen to hearsays, throw seeds excessively, cause unreasonable seed use, and seriously affect the product quality and economy of the shrimps. benefit.
Experts believe that there are four major harms for overdose of seeding: First, it is unscientific to invest too much seed. Because of the high fertility of the shrimp, a female can produce about 3,000 shrimp. These shrimp also breed juvenile shrimp around September of that year. If the control does not credit the species, it will lead to excessive reproduction and the result will not be worth the candle. The second is that excessive use of species can easily cause pan dead shrimp. Because the shrimp is very resistant to hypoxia. If the density is excessive, it may be caused by sultry thunderstorms, and it is easy to cause anoxic pan dead shrimp. When severe, the entire army will be destroyed. The past lessons in this area are very profound and should be given sufficient attention. Thirdly, excessive seeding will result in overcrowding of the groups, extremely small fish farming specifications, and very few shrimps listed on the market. In general, small shrimps of 2 to 3 kilograms are priced at one-fifth the size, which is uneconomical. The fourth is to invest too much, high cost, low efficiency, not worth the candle.
In response, the relevant shrimp farmers should be reminded to pay attention to the following points: (1) Don't overdo it when investing in seeds. For example, if you put in 2 to 3 kg of shrimp species from March to April, it is better not to exceed 0.5 kg per acre (150 to 200 ). (2) As of May, no more than 100 to 150 shrimp species should be released, with a male to female ratio of 3:1. (3) If fresh shrimps are put into production in July, do not exceed 15,000 per acre. In order to control over-proliferation, 30 to 50 fish can be eaten per mu in September to control re-breeding. This can promote the increase of individual shrimp, improve the quality of specifications.
Light Color Halves Walnut Kernels
light color products ,halves, Yunnan origin. shelling by hands, good shape, sweet and crispy
Light Color Halves Walnut Kernels,Shelled Walnut Halves Light Color,Walnuts Halves Light Color,Walnuts Kernels Light Halves
Weishan Yuanxing Walnuts Co.,Ltd. , https://www.walnutsxxy.com