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How to prevent and treat common diseases of broodstock? Explained clearly in one article
1. Vibriosis. The pathogen is Vibrio alginolyticus. When fish are affected, they move sluggishly, frequently swim to the surface, and reduce or stop feeding; the ends of the caudal, pelvic and dorsal fins become congested and inflamed, the tissue between the fin rays gradually breaks apart, and in severe cases the fin rays rot; the eyes bulge outward, and the body surface of diseased fish shows ulcerative lesions in variable locations, which in severe cases rot into a deep hole with exposed bone; Vibrio can be isolated from the blood and internal organs, and the mortality rate is relatively high. Prevention and treatment methods: 1) Immunize the fish with a vaccine. 2) Medicated immersion, usually with 100 ppm
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What Are the Economic Benefits of Growing Pinellia ternata (Drought Pinellia)? A Detailed Analysis in One Article
Pinellia ternata has a very short growing period: planted in April, it can be harvested in August or September. The growing period is between 130 and 150 days. The yield of Pinellia ternata is 200 kg per mu; calculated at a market price of 40 yuan/kg, the benefit is around 8,000 yuan per mu. In addition, Pinellia ternata prefers a shaded environment and is suitable for intercropping with trees, fruit trees, or grain crops. This intercropping model makes full use of the land and achieves the double benefit of both grain and medicine, both forest and medicine, or both fruit and medicine.
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What types of snakes are there? Learn about their medicinal and economic value in one article
Snake Farming Techniques Snakes belong to the animal kingdom, phylum Chordata, subphylum Vertebrata, class Reptilia, order Squamata, suborder Serpentes. The distribution of snakes is greatest in tropical and subtropical regions, followed by temperate zones, and least in cold zones. There are more than 2,500 species of snakes in the world, of which about 650 are venomous. China has more than 200 species of snakes, of which about 51 are venomous, mainly distributed in the southern and southwestern provinces, especially in Guangdong, Guangxi, Hainan and other provinces and autonomous regions. Medicinal and Economic Value The medicinal use of snakes is not limited to snake venom, snake meat, snake gall and snake slough
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What is the Potato Leap Forward? A comprehensive guide in one article
Variety origin: In 1958, the Baishang Agricultural Science Research Institute of Zhangjiakou Prefecture, Hebei Province, crossed "Epoka" as the female parent with "Xiaoyezi" (Beijing Xiaohuang) as the male parent; in 1966 it was bred, named and began to be promoted, and was recognized as a national-level variety by the National Crop Variety Approval Committee. Main traits: upright plant type, relatively many branches, plant height about 70cm, green stems, strong growth vigor: dark green leaves, large compound leaves, 3 to 4 pairs of lateral leaflets; inflorescence peduncle green, slightly tinged with purple, flower stalk
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How to Grow Potatoes? Key Cultivation Techniques Explained in One Article
1. Pre-planting preparation: In mid-February, prepare seed potatoes, pesticides, chemical fertilizers, agricultural film and other farming supplies. Take the seed potatoes out of the cellar and place them indoors at about 12°C to sprout. 2. Cut the seed potatoes: Make sure each piece of seed potato has at least 1-2 eyes and weighs about 30 grams. Treat the cut seed potato pieces with a seed dressing. The powder formula is: add 250 grams of 70% thiophanate-methyl wettable powder to 50 kg of fossil powder. 3. Sow early at the right time: Generally sow from March 5 to 15, with a row spacing of 90 cm and a plant
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What kind of fish is the red-and-white long-tailed crucian carp? Learn about its breed characteristics in one article
Breed registration number: GS02001-2002 Parent source: red crucian carp, white crucian carp Breeding unit: Tianjin Huanxin Aquatic Improved Variety Farm Brief description of the breed: The red-and-white long-tailed crucian carp was produced by mating 2 female long-tailed crucian carp selected from red crucian carp with 3 male white crucian carp, and then from the resulting offspring population of 9 red-and-white long-tailed crucian carp produced by self-fertilization, strict selection was carried out according to the breeding objectives. After 12 years of breeding to the F5 generation, genetic traits such as body color, body shape and fin shape have been stabilized at more than 90%. The base color of the body surface of the red-and-white long-tailed crucian carp is silvery white
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What varieties and types of Asarum are there? A detailed guide in one article
Commercial Asarum is mostly divided into two types: Liaoxixin (northeastern Asarum) and Huaxixin (Chinese Asarum). Liaoxixin refers to Asarum heterotropoides var. mandshuricum and Asarum sieboldii var. seoulense produced in Northeast China. The two are similar in characteristics, but there are distinctions between wild and cultivated products. Wild Liaoxixin is usually gathered in small bundles of a dozen or so plants, often rolled into clumps. The rhizome is irregularly cylindrical, 1-10 cm long, with short branches, grayish-brown on the surface, rough with ring-shaped nodes, and the internode spacing is about 2-3 mm. The branch tips have bowl-shaped stem scars. The roots are slender, densely growing on the nodes, about 1 mm in diameter and 10-20 cm long, grayish-yellow on the surface, smooth or with fine longitudinal
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What varieties and types of Angelica sinensis are there? This article explains in detail
The whole Angelica sinensis root is roughly cylindrical. The upper end of the root is called the "gui tou" (head), the main root is called the "gui shen" (body) or "cun shen," the branch roots are called the "gui wei" (tail) or "gui tui" (leg), and the whole is called "quan gui" (whole root). The whole root is 15-25 cm long, with a fine, dense outer skin, yellow-brown to dark brown, with longitudinal wrinkles and transversely elongated lenticels; the upper end of the root is swollen, 1.5-4 cm in diameter, bluntly rounded, with residual leaf sheaths and stem bases; the main root is thick and short, l-3 cm long, l.5-3 cm in diameter, with 3-5 or more branch roots below, thick at the top and thin at the bottom, mostly twisted, with a few fibrous root scars. The texture is flexible and tough, and the cut surface is yellow-white
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Understanding High-Fever Diseases in Pigs in Summer and Autumn in One Article
For the pig industry, summer and autumn can span from May to early November each year. Over this half-year period, pig diseases are commonly seen and frequently occur for many reasons. According to rough statistics, the incidence of pig diseases in summer and autumn accounts for about 70% of the whole year. The notable feature of pig diseases during this period is that clinically they are mainly characterized by high fever, with body temperature mostly rising above 41°C, presenting as continued fever or recurrent high fever. Among the commonly occurring high-fever diseases are: swine fever, swine erysipelas, swine pasteurellosis, piglet paratyphoid, swine septicemic streptococcosis
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What are the propagation methods for Panax notoginseng? Explained in one article
Seed propagation is mainly done by raising seedlings and then transplanting them. 1. Seed treatment: generally select seeds set by robust, pest- and disease-free 3-year-old plants. When the fruit ripens in November to December, harvest it, wash off the flesh, and sow promptly, because after the seeds are stored for one week the germination rate drops greatly. Before sowing, disinfect the seeds with 0.2-0.3 degrees Baume lime-sulfur solution for 10 min, or with 200-300 times zineb for 15 min, then sow.
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