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Preventive disease measures must be taken before fish storage and transport
As the saying goes: "Buy a chicken that can crow, buy a fish that can jump." Yet many fish farmers, after a year of hard work, run into trouble when the time comes to sell adult fish: the fish do not tolerate storage and transport, their whole bodies become congested, and some even die. At this point most farmers think there is a problem with the feed. Indeed, some feed manufacturers, in order to one-sidedly lower the feed conversion ratio and increase fish growth rate, add hormones or hormone-like drugs such as olaquindox to the feed, causing the above phenomena during fish storage and transport. But fish not tolerating storage and transport
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Before feeding urea to cattle, first check the type of forage
When feeding urea to cattle, urea can be digested by microorganisms in the bovine rumen and synthesized into bacterial protein, replacing part of the protein feed, so urea is a high-quality protein supplement feed for cattle. But urea is not protein after all, and its utilization efficiency is affected by many conditions. Generally speaking, feeding urea to cattle should be determined according to the forage situation. In winter and spring, when the diet is mainly based on roughage such as wheat straw, dry corn stalks, and hay, urea can be added, while in summer and autumn, when the diet is mainly based on green forage, it should not be fed. Trials have shown that when the crude protein content in the feed is below 11%
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Key Points for Preparatory Work Before Sowing Gastrodia elata Seeds from Sexual Reproduction
The sexual reproduction of Gastrodia elata uses hybrid seedling seeds of Gastrodia elata, which reproduce under the combined action of germination fungi and Armillaria mellea. The growth period of sexually reproduced Gastrodia elata is one and a half years, that is, planted in June-July of the current year and harvested at the end of the second year. Its characteristics are small investment, high success rate, and stable yield, and it is currently a relatively advanced high-yield cultivation technique for Gastrodia elata in China. 1. Selection of planting site. The growth of Gastrodia elata hardly requires sunlight, so it can be planted in basements, air-raid shelters, mountain streams, and other places with certain ventilation conditions, as well as in all idle land such as the edges of courtyards, fields, roads, slopes, forests, and bamboo groves. In areas with relatively high temperatures such as semi-mountainous and plain areas, indoor planting is advocated. For the sexual reproduction of Gastrodia elata, river sand, hemp-bone stone sand, etc. should be used as much as possible. In places where there is really no river sand, sandy loam soil with a sand content of more than 50% should also be selected.
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What preparations should be made before first aid for a dog?
As your dog grows older, you may need to learn some emergency response measures for sudden accidents, such as it suddenly getting injured or falling ill. When you find that your dog has suddenly been injured at some unknown moment, do not panic. Remember that the purpose of any first aid measure is to stabilize the injured dog temporarily before the veterinarian arrives. Before starting, the owner must first determine whether the dog's life is in danger. If you find that the dog has stopped breathing, has no pulse or heartbeat, is bleeding continuously, or has been poisoned, you must immediately give the dog first aid. During the process, the dog may appear
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What are the precautions before and after a dog gives birth?
Pregnant dogs mostly give birth between the middle of the night and dawn. The time from delivering the first puppy to delivering the last one is sometimes quite long. Usually, after the first puppy is born, the second is born 15-20 minutes later, and the third 20 minutes after that... From the first puppy to the last one often takes half a day, and sometimes even longer. Therefore, the bedding cloth and sleeping straw should be replaced only after delivery is complete. The pregnant dog tosses and turns in her sleeping spot, arching her back with her abdomen enlarged. She also begins to strain, and this is labor pain. So-called labor pain means pain for a few minutes, then a pause for a few minutes.
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What are the precautions for spraying pesticides before fruit ripens
Pesticides that are prohibited include 1605, methyl 1605, fenitrothion, monocrotophos, methamidophos, trithion, omethoate, zinc phosphide, aluminum phosphide, carbofuran, asomate, chlordimeform, aldicarb, lindane and other pesticides. Dicofol also cannot be used on fruit trees because it contains high-residue DDT. Note the safety interval: the last spraying must be no less than 7 days before harvest for the following pesticides: 50% dichlorvos emulsifiable concentrate, 40% dimethoate emulsifiable concentrate, 50% carbendazim wettable powder, 50% iprodione wettable powder, 20% dinocap wettable
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What are the pond-clearing methods? Remember these five before stocking fish fry
Before stocking fish fry, the aquaculture pond must be cleared to kill various predatory small wild trash fish, harmful aquatic animals and plants, parasite eggs, pathogenic bacteria, etc., creating a good environment for the growth of adult fish. The following five pond-clearing methods are introduced: 1. Clearing the pond with quicklime. When carrying out drainage pond clearing (that is, draining the pond water to a depth of 5-10 cm of remaining water before clearing), use 60-70 kg of quicklime per mu of pond; when clearing without draining, use 125-150 kg per mu of pond for every meter of water depth (200 ppm).
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What preparatory work should be done before sowing cotton?
I. Do a good job of pre-sowing preparation. Land preparation: for directly sown cotton fields, timely harrowing and smoothing should be done during the suitable moisture period to preserve soil moisture, so that the topsoil is loose and the subsoil is firm. 1. Deep plowing and land preparation: the plowing time for cotton fields can be divided into winter plowing and spring plowing, and winter plowing is better than spring plowing. Winter plowing should be deeper, generally 20-30 cm. Spring plowing should be appropriately shallower, generally 13-16 cm is suitable; after plowing, the land should be finely prepared, so that the topsoil is loose and the subsoil is firm, the soil is loose, and water is stored and moisture is preserved. 2. Apply sufficient base fertilizer: applying sufficient base fertilizer and building up soil fertility is the foundation for high cotton yields. The amount of base fertilizer applied should be determined according to yield, soil fertility and fertilizer
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How to manage garlic before winter? These technical points must be mastered
1. Topdressing. Garlic has a high fertilizer demand. In addition to applying sufficient base fertilizer, at the 3-leaf stage, fertilizer must be applied once, with 2000-2500 kg of diluted manure water per mu, or 20-25 kg of ammonium bicarbonate mixed with 2000-2500 kg of water for drenching. When applying chemical fertilizer, it must not directly touch the garlic leaves to avoid burning. 2. Intertillage and hilling. Combined with topdressing, carry out intertillage and hilling once, banking fine soil from between the rows up to the base of the garlic seedlings, which can both prevent fertilizer volatilization and preserve soil moisture and prevent freezing. 3. Drought prevention. Garlic is afraid of drought, and drought will affect
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Detailed Explanation of Key Management Techniques Before and After Jujube Orchard Harvest
I. Care and Management Before Harvest 1. Preventing fruit drop. When jujube trees enter the ripening stage and up to the pre-harvest period, strong winds and heavy rain often cause fruit drop. Therefore, for jujube trees bearing many fruits, support poles should be set up for stabilization, and measures such as pulling and propping branches should be used to strengthen tree stability and reduce fruit drop caused by strong winds. 2. Adjusting unbalanced crowns. For jujube trees with unbalanced crowns where branches are lacking or there is space, inner-canopy branches and water sprouts can be pulled outward to fill the space, thereby adjusting the unbalanced crown and expanding the fruiting area. 3. Shallow hoeing to conserve soil moisture. Before harvest, for jujube orchard plots where soil moisture is particularly poor
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