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What practical cold-proof measures are there for fish and soft-shelled turtle farming
1. Pond selection Choose a deep-water (over 2 m) pond sheltered from the wind and facing the sun for natural overwintering. The water in the overwintering pond should not remain stagnant for long periods; usually replace part of the pond water every 20 to 30 days, each time replacing 1/4 to 1/5 of the total pond water, to prevent pond water contamination. 2. Set up windbreak walls and cold-shelter holes On the north side of the pond, a 2 m high windbreak barrier can be built with straw or earth, and on the east and west sides build earthen walls sloping toward the south, forming a winnowing-basket shape, to reduce attacks by the north wind, so that when a cold wave strikes the water temperature will not drop noticeably. Around the pond, drainage
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The Amur grayling is a cold-water economic fish with extremely high aquaculture value
The Amur grayling belongs to the order Salmoniformes, family Thymallidae, genus Thymallus, commonly known as spotted trout and red-scaled fish. In China it is found in the upper reaches of the Heilongjiang River, the upper reaches of the Nenjiang River, the Mudanjiang River, the Ussuri River, the Songhua River, the Suifen River and other places. Abroad it is distributed along the coast of the Sea of Okhotsk and the coast of the Sea of Japan in Russia. The grayling has two other subspecies in China: the Yalu River grayling from the Yalu River and the Arctic grayling from the **Irtysh River basin. The above three subspecies are quite similar in appearance and habits, differing only in geographical distribution. Amur grayling
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Introduction to Longyuan Sweet Apricot, a New Cold-Resistant Apricot Variety
Longyuan Sweet Apricot is a new cold-resistant variety for fresh eating and kernel use, bred by crossing 79-7-1 (Northern No. 2 plum x Dajie apricot) as the female parent and 79-15-14 (631 apricot x Dajie apricot) as the male parent. In February 2006, it passed the approval of the Heilongjiang Provincial Crop Variety Approval Committee. The fruit is nearly round, with a yellow background color and a red blush on the sunny side. The average single fruit weight is 59.2 g. The largest is 75.5 g. The flesh is orange-yellow, relatively fine and soft, with few fibers and abundant juice. The flavor is sweet and sour, suitable 1:3, containing 13.90% soluble solids. The quality is excellent.
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Key Cultivation Techniques for Converting a Cold Storage Facility into a Mushroom Farm
Cold storage facilities have good insulation and moisture retention, with easily controlled temperature and humidity and weak light, making them quite suitable for mushroom growth and development conditions. With slight modifications to the existing facilities inside the storage, year-round mushroom production can be achieved, with 3 cultivation cycles possible per year. 1 Cold storage conversion. Cold storage can be divided by temperature into high-temperature storage (fruit cold storage) and low-temperature storage (meat and aquatic product storage); by construction location, it can be divided into above-ground storage and cave storage. These cold storage facilities were originally designed and built for storing fruits and vegetables, and their performance is not quite suitable for mushroom cultivation, therefore
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What are the treatment methods for a cold in adult golden coin turtles?
Clinical symptoms: The appearance seems no different from a normal turtle. The main signs are rapid breathing in the sick turtle, and in severe cases the mouth opens 4 times every 5 minutes, resembling a cough, after which the head droops weakly down to the bottom of the rearing container, and feeding stops. Cause: Caused by temperature differences, especially about 2d after a rainstorm strikes golden coin turtles that are basking, when this disease begins to be found; it is actually an upper respiratory tract infection caused by a cold. Injection method: Intramuscular injection, at the base of the hind limb. On days 1-3, use DK 200,000 IU/kg
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Detailed Explanation of Key Points for Cold-Resistant Cultivation Techniques of Jujube Trees
Jujube cultivation in Liaoning Province is mainly concentrated in the Chaoyang, Huludao and Jinzhou areas. In recent years, the high price of jujube, especially the high returns from superior new varieties, has driven many growers in many areas to successively introduce and plant on a large scale, but most failed due to freeze damage. New development areas are limited to Dalian and Yingkou, and the varieties are only Pear Jujube, Jinling Round Jujube and the like. Other areas still have scattered courtyard plantings, and mostly with old varieties. To enable better development of jujube production in Liaoning Province, the author believes that attention should be paid to cold-resistant cultivation of jujube. 1 Cold-resistant variety
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Points to note when raising pigs in summer: do not throw cold water on the pigs
In summer, when the temperature is high, pigs often pant loudly from the heat. Some farmers, worried that the pigs will fall ill from the heat, throw cold water on the pigs, hoping to cool them down and make them feel more comfortable, not realizing that this is harmful and does no good. Pigs pant from the heat because their sweating is poor, so the heat in their bodies cannot be released for the time being. If cold water is thrown on a pig at this time, the strong cold stimulation makes the sweat pores all over the pig's body contract sharply, the release of body heat is blocked, and the body temperature instead rises abruptly; in mild cases the pig develops a high fever and inflammation of the lungs, and in severe cases it
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Detailed Explanation of Cold Protection and Warming Methods for Winter Piglets
The suitable temperature for piglet growth is: 34-30°C at 1-3 days of age, 30-28°C at 4-7 days of age, and 25-22°C at 15-30 days of age. Winter temperatures are low, so the following cold protection and warming measures should be taken for piglets. 1. The pen should be prepared for cold protection and insulation before winter, repair doors and windows in time, and fill in drafty holes and gaps. For open-style farmer pig pens, windbreak cloth curtains sewn from woven fabric or feed woven bags should be used to block the windward positions, minimizing ventilation as much as possible and preventing north wind and rain from directly penetrating from outside, so as to raise the temperature of the pig pen.
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What to Do If a Rabbit Has a Cold? A Detailed Guide to Practical Prevention and Treatment Measures
Causes A sudden drop in temperature, or a cold, damp rabbit hutch, can easily trigger a cold in rabbits. Clinical symptoms The affected rabbit has a mild cough, sneezes, has a runny nose with clear or thick nasal discharge, difficulty breathing, listlessness, reduced appetite and a rise in body temperature. If not cared for properly, it can easily develop secondary pneumonia or haemorrhagic septicaemia. Preventive measures Keep the indoor area clean and hygienic. When the temperature changes, close the doors and windows to keep the warmth in. If there is strong wind and a drop in temperature, light a fire in the rearing room promptly to keep the temperature stable and prevent it from fluctuating up and down,
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Longjing Changye is a high-quality, early-sprouting, cold-resistant new Longjing tea cultivar
"Longjing Changye" is a new green tea cultivar bred by the Tea Research Institute of the Chinese Academy of Agricultural Sciences, with early sprouting, high quality, cold resistance and resistance to pests and diseases. It passed the appraisal of the National Tea Variety Approval Committee in 1994. 1. Quality characteristics: Suitable for making flat-shaped famous premium green tea and bulk green tea, with excellent quality. The Longjing tea made from it has a slender, upright, pointed and flat, smooth appearance, an emerald green color with a slight yellow tint, a prominent, high, fresh aroma, and a fresh, mellow taste. Its biochemical components: spring tea fresh leaves contain 4.1% amino acids and 18.6% tea polyphenols.
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