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How are common diseases of Silkie chickens diagnosed? With a detailed explanation of rearing methods
1. Newcastle disease (fowl pest) [Diagnosis] Sick chickens are listless, have reduced appetite, elevated body temperature, tremors, head tilted backward, opisthotonus, and circular movement, etc. Difficulty breathing, drooping wings, greenish watery droppings, death after 2 to 3 days, with a relatively high mortality rate. [Treatment] At 7 to 8 days of age, chicks are given Newcastle disease strain II vaccine by nasal or eye drops; at 28 days of age, the vaccine is administered once more; at 50 to 60 days of age, Newcastle disease strain I vaccine is injected intramuscularly. If the disease breaks out suddenly, Newcastle disease strain I vaccine should immediately be injected intramuscularly.
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Detailed Explanation of Key Points for New Efficient Rearing Techniques for Late-Stage Silkworms
During the late-stage rearing period, especially the fifth instar, mulberry consumption accounts for about 85% of the entire rearing period, and a large amount of labor, such as removing excrement, feeding mulberry leaves, and picking ripe silkworms, is concentrated in the fifth instar. According to surveys, traditional silkworm tray rearing. Not only requires a large amount of labor, but also makes silkworm rearers extremely exhausted, with low labor efficiency. Using fixed rearing stands for late-stage silkworms with automatic mounting, without removing excrement, without picking ripe silkworms, and without moving trays up and down, mulberry feeding and mounting are convenient. Compared with traditional silkworm tray rearing, it can save more than 50% of labor and reduce labor intensity by 40%-50%. 1.
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Detailed Explanation of Key Technical Points for Cooperative Rearing of Young Silkworms
As the saying goes: "Rearing young silkworms well means 70% of the harvest." For this reason, special attention should be paid to the cooperative rearing of young silkworms. (1) Specific requirements and technical measures for cooperative rearing of young silkworms 1. The cooperative rearing room should use a dedicated young silkworm room. It needs good heat preservation and moisture retention performance, and easy ventilation. Strict disinfection should be carried out before rearing silkworms, implementing "three disinfections and one fumigation." "Three disinfections": the first round uses lime slurry; the second round uses bleaching powder; the third round uses disinfection cleaner; "one fumigation": use toxic powder fumigation smoke. 2. Heating is uniformly provided by heated bed warming. Because heated bed warming makes
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Key Points of Broodstock Rearing Technology and Feeding Management Methods
1. Broodstock Rearing (1) Sexual Maturity The sexual maturity age of Wuchang bream (Megalobrama amblycephala) is 2 to 3 years, and the sexually mature body weight is above 0.5 kg. The spawning and breeding period is from May to June. (2) Male and Female Identification Sexually mature male fish have a large number of "nuptial tubercles" on the head, pectoral fins and caudal peduncle, with a rough feel when touched by hand; the abdomen is narrow and small, and when sexually mature, lightly pressing the testis area of the abdomen causes milky white semen to flow out; the first fin ray of the pectoral fin is thick and wavy-curved. Female fish have no "nuptial tubercles" or only a small number of tubercles on the eyes and back, and the abdomen is obviously
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What are the technical measures for autumn fingerling rearing
Autumn water temperatures generally range between 20 and 30°C, which is a good time for fish growth. If autumn is not used promptly to rear fingerlings into plump, strong, large-sized fingerlings, then when the cold winter arrives, most fingerlings will die because of weak constitution, and the average survival rate is often less than 60%. Therefore, strengthening autumn fingerling rearing is the top priority for farmers. The specific rearing measures are: disinfect and clear the pond, then transfer to a new pond. In the original pond used for rearing fingerlings, after several months of culture in spring and summer,
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Disease Occurrence Patterns and Prevention Methods for Pigs at Different Rearing Stages
Disease Occurrence in Pigs at Different Rearing Stages Incidence Rates of the Three Major Infectious Diseases of Pigs Hog cholera, swine erysipelas, and swine pasteurellosis are collectively known as the three major infectious diseases of pigs. In China, the overall mortality rate of affected pigs accounts for about 8% of the total reared population, and even in areas with relatively good prevention and control, pig mortality stands at 5%. Therefore, the level of pig disease prevention and treatment should be improved. If the overall pig mortality rate could be reduced by one percentage point each year, that would be equivalent to an additional 5 million pigs sent to market - what a tremendous amount of wealth that represents. According to relevant statistics, among the causes of pig deaths, those caused by
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Detailed Explanation of Key Technical Points and Management Methods for Silkworm Rearing
I. Incubation Supplementation and Silkworm Collection Currently, all silkworm eggs used for producing raw silk cocoons are binary hybrids or multi-line hybrids, and the technical handling is roughly the same. Proper protection of silkworm eggs and the use of appropriate collection methods have a great effect on the growth and development of silkworms. 1. Receiving eggs: It is best to do this in the early morning or evening when the temperature is lower. During this period, avoid direct sunlight or rain, pay attention to ventilation, and never stack or press them. 2. Incubation supplementation of silkworm eggs: After receiving the silkworm eggs from the silkworm egg farm or station, they should continue to be protected in a suitable environment
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Key points for autumn and winter rearing techniques of black carp, grass carp, silver carp and bighead carp broodstock
Broodstock rearing is an important part of the artificial propagation of black carp, grass carp, silver carp and bighead carp. The feeding and management work in autumn and winter directly affects the induced spawning results of the following year, so it must be given full attention. 1. Conditions and clearing of the broodstock pond. The pond for rearing broodstock should not only be close to the spawning pond but also have good water source conditions, and be convenient for irrigation and drainage. The pond bottom should have little mud; for silver carp and bighead carp ponds, a mud depth of 20 cm is sufficient, while black carp and grass carp ponds should contain little or no mud. The area should be 2000-3300 sq m, with a water depth of about 1.5 m. Broodstock rearing
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Detailed explanation of feed-saving rearing methods for chickens, helping you reduce the cost of chicken feed
The cost of chicken feed accounts for about 70% of the total rearing cost, so saving feed to reduce costs is the main way to improve the economic benefits of chicken rearing. The following methods can be used to save feed: 1. Raise excellent breeds. Choose excellent breeds of chickens to raise; at the same age and with the same amount of feed consumption, the production performance of excellent breeds is much higher than that of other breeds. There are more than a dozen high-yielding layer and broiler breeds in the world today, and most of them have already been introduced into China. The laying hens suitable for raising in the north mainly include excellent breeds such as Lohmann, Hysex, and Hy-Line.
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Key Technical Points for Silkworm Rearing, Cocoon Harvesting and Cocoon Selling
I) Cocoon harvesting 1. Proper time for cocoon harvesting: After the mature silkworm finishes spinning its cocoon, it molts and pupates. As the pupa develops, the body skin hardens and darkens in color. When the skin color turns yellow, it is the proper time for cocoon harvesting. In the spring silkworm season, it is 6-7 days after mounting on the cocooning frame. In the summer-autumn silkworm season, it is 5-6 days after mounting, and in the late-autumn silkworm season, it is 7-8 days after mounting; generally the cocoons can then be harvested. If cocoons are harvested too early, the silkworm has not yet pupated, and "hairy-foot" cocoons are difficult to dry evenly and suitably during cocoon drying, lowering cocoon quality; moreover, when such cocoons are boiled, the impurities in the silkworm body readily seep out into the cocoon layer, worsening the color of the raw silk.
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