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How to Catch Natural Eel Fry? Three Methods Explained
There are mainly three fishing methods: 1. Stake net. The stake net is trumpet-shaped, generally 9 m long with a mesh circumference of 6-7 m, and can be woven from polyethylene twine. It gradually narrows from the mouth to the rear end, and the tail end of the mouth is connected to a floating fry collection box. The mesh of the fry collection box is 50-60 mesh. The stake net should be fixed on the beach far from the sluice gate, and it collects and catches eel fry with the tide. It can be harvested during both the rising and falling tides. With two people working, one rows a small boat, and the other regularly lifts the fry collection box with a small white porcelain basin, scoops out the eels
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How to rescue fish from toxic water? Three methods for treating fish
Excess dissolved oxygen toxic water syndrome: Excessive dissolved oxygen in the water body can cause eutrophication of the water, leading to gas bubble disease and various other conditions in fish. Many small bubbles adhere to the fish gills, causing the fish to float up or lose balance when swimming. There are white bubbles in the fish intestines, or relatively many bubbles are attached to the fish body surface, fin rays, and gill filaments, and the fish body floats on the water surface; in severe cases, it can cause fish to die in batches. When bubbles appear in the fish pond, first, clean water should be injected quickly while discharging part of the pond water; fish with mild symptoms can expel the bubbles in clean water; second, use 400-60 per mu of water surface
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How to prevent spider plant leaf tips from withering? Three methods to teach you
Spider plant (Chlorophytum comosum), evergreen all year round, suspended indoors, can be called an "aerial flower." The stolons it sends out from the leaf axils produce many small plantlets with roots, hanging down along the pot, very elegant. Spider plant is also called an indoor air "purifier"; it can absorb carbon monoxide, nitrogen oxides and other volatile gases, purifying the room's air and benefiting human health. However, spider plant leaf tips often wither easily, affecting its appearance. Therefore, prevention and treatment must be carried out according to the situation. 1. Always pay attention to watering and misting, keeping the pot
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How to prevent and treat paralysis in sows? These three methods are very practical
Paralysis in sows is a metabolic disease that is extremely likely to occur under conditions such as extensive feeding management and poor feed conditions. Once the disease occurs, it not only affects the sow's value for use, but also affects the quality of the piglets, causing great losses to production. Based on many years of clinical experience, the author achieved satisfactory results in treating sow paralysis by combining Chinese and Western medicines with acupuncture. It is introduced below for the reference of readers. I. Causes of the disease This disease mainly occurs after farrowing and during lactation in sows. The former is due to
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Snake breeding and selection is carried out in three steps, with the specific methods explained in detail
Strengthening the artificial breeding and selection of snakes is of great significance for improving the reproductive survival rate, growth and development speed, product quality and economic benefits of snakes. It is a task that cannot be neglected in a snake farm and must be carried out year-round with persistent effort. In breeding and selection, the following three points should be done well: 1. Selection of breeding eggs. The breeding eggs placed in incubation must be fresh and of high quality. Eggs stored for a long time have a low hatching rate and a high mortality rate, and the hatchling snakes are weak and grow slowly. Therefore, the female snake should be checked frequently before laying eggs, and when the eggs are found to be approaching the cloaca,
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Introduction to three methods for harvesting warm-water fish
1. Seine netting method. This is currently a relatively common harvesting method for "warm-water fish." The net is generally made of nylon, or the middle section is made of nylon. The net length should be about 1.5 times the width of the pond surface, the net height should be about 2 times the pond water depth, and the mesh size should be such that none of the pond fish get gilled in the net. The advantages of this harvesting method: first, it catches all types of pond fish, which can meet the demands of different fish vendors; second, during the seining process, the bottom mud and pond water are stirred up, which plays a role in fertilizing the water and aerating it. Of course, this harvesting method also has obvious disadvantages: first, the seining
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Three practical methods for storing wheat, simple and easy to carry out
Heat-sealed method: Choose a clear, hot day, and around 9 a.m. after the drying yard has been heated by the sun, first move out the tools and materials (cotton quilts, burlap pieces, etc. all work) to air and dry in the sun. The wheat must be turned frequently so that the wheat temperature rises to 48-52°C in the sun and the moisture drops below 12.5%. Around 3 p.m., pile it up, let it sweat hot for half an hour, and while still hot put it into the jar. Use materials that have been disinfected and dried in the sun to press down and cover it, then seal it with plastic film so that no air leaks, keeping the grain temperature above 40°C for 8-10 days to kill eggs, pupae, larvae and adults, achieving the effect of accumulating heat to kill insects.
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Detailed Explanation of Three Fish Feed Formulas and Their Mixing Methods
(1) Grass carp feed formula (1) Rice bran 40%, wheat bran 38%, soybean cake 10%, fish meal 10%, yeast powder 2%. The feed conversion ratio of this formula is 1.9; if green fodder is added separately, the feed conversion ratio is 2.2. This formula was provided by the Pearl River Fisheries Research Institute. (2) Rice straw powder 80%, soybean cake 10%, rice bran 10%. This formula was provided by the Yangtze River Fisheries Research Institute, with a feed conversion ratio of 4.9. (3) Corn meal 70%, fish meal 10%, soybean cake powder 15%, wheat bran 5%. Its additives and binders are: sweet potato 12%
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How to store garlic? Three simple and practical methods to teach you
Garlic belongs to the Amaryllidaceae family (allium genus) and is a bulb vegetable of the onion-garlic category. By color, it is divided into white-skin garlic and purple-skin garlic. Garlic is cold-tolerant; it can be sown from February to April in early spring and harvested from June to July; when sown in autumn and overwintered in the open field, it is harvested from May to June the following year. After storage, it can be supplied to the market year-round. Storage characteristics: when the garlic scapes have been harvested for about 20 days, and about 1/2 or 2/3 of the leaves have turned yellow and the bulbs are fully swollen, this is the suitable harvest period for garlic bulbs. Irrigation should be stopped 3 to 5 days before harvest to reduce soil moisture and improve bulb quality and storability. Garlic has an obvious physiological
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How to Store and Preserve Fresh Peaches? Introduction to Three Practical Methods
Cold storage. Peaches are prone to chilling injury during low-temperature storage, and there is a risk of freezing at -1°C. Therefore, the suitable storage temperature for peaches is 0°C, and the suitable relative humidity is 90%-95%. Under these storage conditions, peaches can be stored for 3-4 weeks or longer. However, when peaches are stored at low temperatures for a long time, the flavor gradually becomes bland. Long-term low-temperature cold storage can cause chilling injury to the peaches, with the flesh turning brown. In particular, when the peaches are moved to a high-temperature environment for ripening, the flesh becomes dry, mealy, and soft, and the flesh around the pit turns noticeably brown. In the cold storage
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