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Rice Research Institute of Jilin Academy of Agricultural Sciences selects high-quality rice varieties
At the recently concluded evaluation of high-quality rice varieties (lines) in Jilin Province, "Jigeng 81" and "Jigeng 83", bred by the Rice Research Institute of the Jilin Academy of Agricultural Sciences, were rated as "high-quality rice varieties", and another 6 lines were rated as "high-quality rice lines". It is reported that this high-quality rice variety (line) evaluation was the third such event held after 1995 and 1998. The 10 high-quality rice varieties selected in the previous two events have already been promoted and applied on a large scale in production thanks to their good quality and high yield
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Pig eczema breaks out frequently during the rainy season: how can it be prevented and treated scientifically?
Pig eczema, also known as pig eczema toxemia, is mainly caused by pigs living in a damp environment for a long time, and the outbreak rate of this disease is especially high in hot seasons. 1. Symptoms. Most acutely affected pigs develop the disease suddenly. At the beginning of the disease, the skin under the jaw, on the abdomen and on both sides of the perineum turns red, and broad bean-sized nodules appear at the same time, with itching and restlessness. Later, as the condition worsens, blisters and papules appear on the skin of the affected pigs. After the blisters and papules rupture, they are often accompanied by yellow exudate, and finally form scabs or turn into scales. If acutely affected pigs are not treated in time
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Feed Formulas and Scientific Preparation Methods for Lactating Sows
Lactating sows need large amounts of nutrients to support lactation. During peak lactation, the sow's milking capacity exceeds the nutrients she takes in through feed and exceeds the nutrients excreted in milk, so her body condition declines rapidly. Preparing high-quality, high-nutrient-density feed for lactating sows is the best way to resolve this contradiction. Feed Formula 1: Lactation Feed Formula 1 in Table 4-3 avoids as much as possible the use of bulky feeds such as alfalfa and rice hull bran. In the design of lactation feed formulas, unknown nutritional factors appear to be less
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A Detailed Explanation of Sheep Nutritional Requirements and Key Points of Scientific Feeding Management
1. Nutritional Requirements Goats, like other livestock, require various nutrients for their life activities, mainly including protein, carbohydrates, fats, vitamins, minerals and water. (1) Protein Protein is a nitrogen-containing compound, and its basic composition is amino acids. There are many types of amino acids, but only just over 20 kinds make up proteins. Protein is the main component of sheep body tissues and cells, and is a nutrient essential for maintaining normal life metabolism, growth, reproduction and the production of various products. By
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Feeding concentrate to rabbits requires care: master the scientific feeding method
Concentrates include energy-based feed ingredients such as corn, barley, wheat, sorghum, wheat bran and fine rice bran, as well as feed ingredients with high protein content such as soybean meal, rapeseed cake, fish meal, silkworm pupae and blood meal. Their common characteristics are low crude fiber content, low moisture content and high nutritional value. To increase the weight gain rate of meat rabbits, make wool rabbits produce more wool and rex rabbits produce more high-grade fur, concentrates are indispensable. The principle for using concentrates is to follow the nutritional needs of different types of rabbits and, according to the different regions and different
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Why can flying snakes fly? Scientists uncover the mystery
You may find it hard to imagine how snakes, which have neither wings nor wing-membrane-like appendages, can "fly" like birds. Yet scientists have found that some snakes not only fly, but are masters of flight. Flying snakes generate power by shaking their ribs. Jack Socha of the University of Chicago in the United States has been studying snakes' flying ability for 8 years. Recently, Socha revealed in a professional journal the reason flying snakes are so good at flying. He said: "Although flying snakes lack wing-membrane-like appendages,
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How to scientifically improve the nutritional level of pigs
1. Nutrition of gilts. The nutrition of gilts and the related nutritional reserves are important factors affecting the lifelong performance of sows, and their nutritional level should ensure the body's needs during the reproductive period after maturity. Starting from a body weight of 45 kg, the diet level should be 0.1% higher than the usual growing-finishing pig diet to enhance the skeletal development of gilts. After gilts reach about 150 days of age and enter the replacement gilt herd, their growth should be controlled, with restricted feeding (2.3-2.8 kg/day) of a medium-energy, high-protein diet to reduce
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Scientific use of chemical control technology in cotton can effectively increase yield
Scientific chemical control of cotton is an important scientific measure for increasing cotton yield. Chemical regulation technology has three benefits: first, it helps strong seedlings to develop early, controls height and stabilizes growth, making it easier to give play to the yield-increasing advantage; second, it simplifies cotton field management, saving labor and cost; third, it promotes the transformation of second- and third-grade cotton seedlings, achieving balanced development and increasing yield and efficiency. The principle of chemical control is "small amounts, many times; light control, frequent adjustment." One should master "spray every time, control every time" or "control once at every interval" (flexibly according to soil fertility, rainfall, and growth condition), and it is best to "divide the amount for one application into three applications," ensuring the plant grows steadily and robustly "strong but not excessive" from beginning to end. If chemical control is done poorly, it can cause excessive growth or stiff seedlings that do not develop, affecting the normal growth of cotton. Therefore, in the process of implementing chemical control, the dosage of the chemical control agent must be strictly controlled.
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Detailed Explanation of Scientific Propagation Methods and Techniques for Lilies
Lilies can be propagated by seed sowing, scale cuttings, separating small bulbs, and separating bulbils, but separating small bulbs and scale cuttings are the main methods. ① Separating small bulbs. The primary requirement is to have enough small bulbs. Methods to increase the number of small bulbs include: a. When planting large bulbs, increase the depth appropriately. b. Before and after flowering, cut off the stems and leaves more than 40 cm above ground. c. After flowering, cut the stems with leaves into small sections with 3-4 leaves and shallowly bury them in moist sandy soil. Small bulbs planted for 2 years can then flower. ② Scale cuttings
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Insect-resistant potato bred first by Belarusian scientists
Scientists from the National Academy of Sciences of Belarus have announced a new research achievement: they have bred the world's first potato that can automatically kill pests. According to a report by Russia's Interfax news agency on August 7, to date, a pest known by the scientific name Colorado potato beetle has been the biggest headache for farmers, because it destroys large areas of potato fields every year and causes huge economic losses to agriculture. A new type of genetically modified potato recently bred by Belarusian scientists can specifically poison this beetle to death. A
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