The seedlings selected for breeding should be healthy, disease-free, and free from physical damage. Before stocking, they should be soaked in a 2% saline solution for 10 minutes to enhance their resistance and reduce the risk of infections. Now, let me introduce two commonly used farming models that you can consider for your aquaculture project:
In pond culture, the aquaculture area is typically between 100 to 150 square meters. The pond's bottom should be covered with a 20 cm thick layer of soft silt to support the growth of the seedlings. The water depth should be maintained at 40 to 50 cm, and the pond must be equipped with a proper drip and drainage system, along with effective anti-escape facilities to prevent the fish from escaping. Approximately 40 to 50 rice seedlings, each weighing around 6 grams, are stocked per square meter. They are fed with animal feed, and the daily feeding amount should be about 5% of the total weight of the seedlings. On average, 2.5 kg of mud is produced per square meter during this process.
For paddy field breeding, the fields need to be properly elevated and reinforced, and escape prevention measures must be well implemented. A "well" shaped trench is dug across the field, with a width of 30 to 40 cm and a depth of 50 cm. Around 1,000 to 2,000 seedlings are stocked per mu (approximately 667 square meters). Organic fertilizers such as livestock manure and compost are used as base fertilizers, while daily feed includes ingredients like soybean cakes, vegetable cakes, and rice bran. Field management follows standard rice cultivation practices. When using pesticides, it's recommended to choose high-efficiency and low-toxicity options, and they should be sprayed upwards to avoid direct contact with the water. Under normal management conditions, it's possible to harvest about 50 kg of marketable loach per acre of paddy field without affecting the rice yield. This integrated approach not only maximizes land use but also promotes sustainable aquaculture practices.
Pentaerythritol
Pentaerythritol is mainly used in the coatings industry, can be used to manufacture alkyd resin coating, can make the coating film hardness, luster and durability.It also USES up with anger paint, lacquer and printing ink of pine resin needed raw materials, coating and drying oil, smoldering sex and aviation lubricating oil and so on.
Also used in medicine, pesticide and so on production.Pentaerythritol molecules containing four hydroxymethyl equivalent, with high symmetry, so the production raw material is often used as multifunctional compound
By its nitrification can produce pentaerythritol tetranitrate (taian, PETN), is a kind of high explosives;Esterification available pentaerythritol three acrylate (PETA), used as a coating.
Pentaerythritol,Pentaerythritol 115-77-5,Pentaerythritol Msds,98% Pentaerythritol
Shandong Tiancheng Chemical Co., Ltd. , https://www.tianchengchemical.com