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Technical Measures for Increasing Yield and Efficiency in Polyculture of Mandarin Fish
Monoculture of mandarin fish requires an adequate supply of matching forage fish, has relatively high technical requirements, and presents certain difficulties for large-scale farming. Mandarin fish can be polycultured in other aquaculture water bodies. I. Polyculture Methods 1. Polyculture in adult fish ponds. For ponds raising predatory fish, abundant water sources are required
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What are the requirements for building breeding cages for masked palm civets?
Perhaps everyone is not very familiar with the masked palm civet. In fact, the masked palm civet was originally a precious wild animal, but because every part of it is valuable, its value is very rich, and market demand is also great. Therefore, many people have started to breed masked palm civets.
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What procedures are required to build a bamboo rat breeding farm
Liao Meizhong, a villager from Changjiang Village, Chijiang Town, Dayu County, called to ask: After watching a technical lecture on TV about the artificial domestication and breeding of Chinese bamboo rats, I also want to build a Chinese bamboo rat breeding farm. May I ask, what procedures do I need to go through? Dayu County Forestry Bureau Wild
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Efficient golden pheasant farming requires attention to three-stage management
The golden pheasant farm should be located in a flat, sunny, wind-sheltered, well-drained, dry and quiet place. Generally, a combination of indoor housing and an outdoor exercise yard is used for rearing, which is conducive to the growth and reproduction of golden pheasants, and the plumage color is also more brilliant. Perches should be set up in the exercise yard and on the indoor racks, so that the golden pheasants can adapt to perching on the racks. The floor inside the shed should be covered with sand or sandy loam. During the breeding period, nest boxes should be provided, and the nest boxes should be concealed with coverings to ensure that the golden pheasants are not startled when laying eggs. In addition, feed buckets and drinkers need to be placed. Besides this, attention should also be paid to the feeding management during the three growth stages.
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Environmental Requirements and Management Techniques for Hatching in Rice Field Eel Aquaculture
The hatching rate of fertilized rice field eel eggs is affected by various environmental factors, among which the main ones are water temperature, dissolved oxygen and harmful organisms. (1) Water temperature The embryonic development of rice field eel is extremely closely related to water temperature. This is mainly shown in three aspects: first, embryonic development must be carried out at a suitable water temperature; too high or too low will cause a decline in hatching rate or embryonic deformity. Studies show that the suitable water temperature for embryonic development of rice field eel is 21-28°C, and the optimal water temperature is 24-26°C; second, within the suitable water temperature range, too large or too rapid a water temperature difference can also cause embryonic deformity or death, and it is usually required that the temperature change within a short time should not exceed 3°C, and preferably not exceed 1°C; third, the length of embryonic development time of rice field eel is directly affected by water temperature. At a water temperature of about 30°C (28-36°C), embryonic development takes 5-7 days, and at a water temperature of about 25°C, embryonic development takes 9-11 days.
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Cattle farming requires good daily health care to ensure the cattle stay healthy
After entering spring, the temperature difference between day and night is relatively large. The temperature inside the cattle shed should be kept at 8°C to 20°C, with good ventilation, and attention should be paid to frequently changing the bedding straw. Keep the cattle pen dry, do not let humidity get too high, and strictly prevent a wet pen to help retain warmth; otherwise, it will cause a decline in dairy cow milk production, and in severe cases it will also cause
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Nutritional Requirements of River Crab Farming and Experience in Compound Feed Production
The river crab is a unique aquatic delicacy of China, renowned at home and abroad for its high nutritional value and distinctive flavor, and has become an important export product for earning foreign exchange. Therefore, from lakes and reservoirs to ponds and rice fields, river crab farming is being promoted on a large scale. The rapid
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Tibetan Mastiff Calcium Supplementation Requires Care: A Few Points Breeders Should Know
Calcium supplementation is an issue that cannot be ignored. If you want your beloved mastiff to grow healthy and imposing, with a beautiful physique and strong, agile limbs, you must supplement calcium at the right time and in the right amount. The following suggestions are for reference only: When is calcium supplementation needed? For large dogs like the Tibetan Mastiff, the larger the breed, the faster it grows, and the greater its calcium requirement. For puppies, the calcium contained in ordinary puppy food can hardly meet their growth needs. If you feed your mastiff homemade food, then you should pay even more attention to supplementing calcium in a timely manner. In addition, if your mastiff has long been eating animal liver or has meat as its staple food, then it should also be given an appropriate amount of calcium supplementation. This is because such foods not only have a very low calcium content, but also contain high concentrations of vitamin A. Long-term intake of high concentrations of vitamin A by dogs can inhibit calcium absorption. Therefore, you should immediately stop the long-term habit of feeding liver and promptly supplement calcium for it. After a mastiff enters adulthood, if it is fed dog food, there is no need for separate calcium supplementation. This is because during this period, the growth and development of the dog's bones and other organs have basically stopped, and its calcium requirement is very small. If it is a stud dog or a female dog during pregnancy and lactation, it still needs a large amount of calcium supplementation, because semen, fetuses during the embryonic stage, and milk will all cause a large amount of calcium to be lost from the body. If it cannot be replenished in time, calcium from the body's calcium pool will be drawn upon, causing osteoporosis. How should calcium be supplemented for mastiffs? There is no obvious difference between the methods of calcium supplementation for dogs and for people. Generally speaking, calcium products for human use are also suitable for dogs. In addition, drinking more milk or eating some dairy products and cartilage foods in daily life, and reducing the intake of foods high in vitamin A such as liver, are also beneficial for calcium supplementation. If a mastiff has already shown symptoms of calcium deficiency, then medication should be used. It is recommended to choose relatively inexpensive calcium carbonate and calcium lactate while injecting vitamin D3 and orally taking vitamin D2 and vitamin D3. Of course, if conditions permit, you can also choose some imported-brand pet calcium products, because these products are relatively more professional. Methods for supplementing calcium for young mastiffs Some people believe that feeding all meat can make puppies grow strong, but this is actually the wrong approach. Eating only meat not only cannot make puppies strong, but instead, due to indigestion and difficulty absorbing it, can cause most puppies to develop diarrhea. Although meat contains a lot of protein, it has relatively little vitamin A, vitamin D, vitamin E, and iodine. At the same time, meat has little calcium and much phosphorus. Long-term meat eating can easily cause an imbalance in the calcium-to-phosphorus ratio in puppies' bodies, resulting in skeletal disorders and making lameness likely. For large dogs, it is even more inadvisable to feed large amounts of meat too early, otherwise it may cause the front limbs to become bent. Puppies' feed should be supplemented with calcium powder and vitamins, which are necessary for the growth of teeth and bones. Especially for purebred dogs with larger frames, calcium is even more needed during the puppy stage. Usually, for growing puppies under one year old, the daily amount of calcium powder supplementation is about one teaspoon per 2 kg of body weight. As age increases, the amount of calcium powder and the dosage should be increased proportionally. After one year of age, because the puppy has entered maturity and the growth of teeth and bones has stabilized, the required amount of calcium powder is relatively reduced, and the dosage is about one teaspoon per 15 kg of body weight. However, there should be an appropriate amount of outdoor exercise every day, with exposure to ultraviolet rays, so as to facilitate calcium absorption.
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What are the site construction requirements and precautions for raising Muscovy ducks?
When raising Muscovy ducks, the duck house is key. Not only must a suitable location be chosen, but the design must also suit the living habits of Muscovy ducks. Only scientific rearing can produce healthy Muscovy ducks. 1. Basic requirements for building a Muscovy duck house Compared with other waterfowl,
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Leech Farming Techniques: What Are the Requirements for Bait?
I. Nutritional Requirements of Leeches. Like other animals, leeches require five major categories of nutrients for their growth and development: proteins, fats, carbohydrates, inorganic salts and vitamins. At different developmental stages and in different environments, leeches also have different requirements for nutrients.
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