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Current Status and Progress of Research on Porcine Ophthalmic Diseases
Researchers in veterinary medicine at the University of Florida in the United States used pigs as experimental subjects and specially treated the feed provided so that it created a zinc-deficient condition. As a result, this treatment group may have caused chronic damage to the pigs' retinas, and it may be related. Veterinary ophthalmology experts have completed monitoring changes in blood, skin, body weight and major organs in young piglets and older pigs. The pig eye is very similar in structure to the human eye. This group of researchers has
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Latest research progress made in the potato genome project
News from New York on March 31: the Potato Genome Sequencing Consortium (PGSC) said that the Dutch government will contribute 3 million euros (about 3.6 million US dollars) to sequence the first potato chromosome, and, in cooperation with research organizations from other countries, complete the sequencing of the potato genome (840 Mb) in 2010, making a contribution to the future global food supply. PGSC
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Major progress made in project to control soybean yield reduction from continuous and alternating cropping
The reporter learned from relevant departments that the project "Research and Demonstration of Key Technologies for Controlling Soybean Yield Reduction under Continuous and Alternating Cropping," tendered by the Municipal Science and Technology Bureau, has achieved major progress after two years of scientific research. The project was carried out in Yilan and Bayan counties, the two counties with the largest soybean area in Harbin. Through key technology research, soybean varieties resistant to continuous and alternating cropping were selected, including Kenfeng 16, Heinong 48, Kangxian 4, and Hefeng 47. A formula fertilization technique was proposed with 45 kg of nitrogen, 60-67.5 kg of phosphorus, 67.5-75 kg of potassium, and
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Research Progress on Detection Technologies for Porcine Circovirus
Porcine circovirus disease is a class of viral infectious diseases caused by porcine circovirus (PCV) infection and characterized by immunosuppression, with the main clinical manifestation being postweaning multisystemic wasting syndrome in piglets caused by PCV-2. This article reviews the research progress in recent years, both domestically and internationally, on detection technologies for this virus, including virus isolation, electron microscopy, polymerase chain reaction, indirect immunofluorescence assay, immunohistochemistry, enzyme-linked immunosorbent assay, and in situ nucleic acid hybridization. Porcine circovirus disease
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Detailed Explanation of Research Progress on Low-Pollution Pig Diet Technology
[Abstract] Maximizing the production performance of each pig has always been a common goal pursued by producers and nutritionists. Therefore, general diet formulation gives little or no consideration to nutrient excretion, resulting in excessive nutrients (mainly nitrogen and phosphorus) being excreted with feces and urine. In recent years, public concern for the environment has grown increasingly strong. Through nutritional technology, improving the feed conversion efficiency of pigs and reducing waste (feces and urine) has become a hot topic in current swine science and nutrition research. By supplementing synthetic amino acids,
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Review of Research Progress on Pig Disease-Resistance Breeding Technology
High-yield objectives usually lead to reduced pig resistance. At the same time, pig farm diseases, especially viral infectious diseases, severely threaten pig health. Although vaccination has played an important preventive and control role, it has not been able to completely control and eliminate the prevalence of infectious diseases. In the long run, adopting genetic methods to improve pigs' resistance to pathogens at the genetic level, and carrying out disease-resistance breeding, has a fundamental effect. In the 1930s, some scholars reported that different chicken breeds differed in susceptibility to Marek's disease, and in the subsequent
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Research and Development Progress of Functional Rice and Its Food Products
Functional rice refers to rice products that regulate human physiological functions, are suitable for consumption by the general population, and are not intended for the treatment of diseases. In addition to containing the seven major nutrients necessary for human growth and development - protein, fat, carbohydrates, vitamins, minerals, water and fiber - functional rice also contains certain special components that regulate and balance human physiological functions. It can enhance physiological defense mechanisms, prevent specific diseases, delay aging, and control physical strength and energy status. 1. Processing of functional rice
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Latest Research Progress on Porcine High Fever Syndrome
The "high fever syndrome" that first broke out in southern China in the summer of 2006 has not yet subsided, and it is currently the issue of greatest concern to us pig farmers. Some readers have also called our editorial office to inquire about research progress on the disease! At the "Beijing Animal Husbandry Association Pig Industry Annual Meeting", Academician Chen Huanchun of Huazhong Agricultural University and Professor Yang Hanchun of China Agricultural University were invited to each express their personal views on the currently prevalent "high fever syndrome". 1 Epidemic situation First, geographically
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Smooth progress in the application of the cotton "two-ization" technology
The cotton factory seedling raising and mechanized transplanting technology (abbreviated as the "two-ization" technology) has the characteristics of modern agriculture. It is an intensive and large-scale production technology, and also a resource-saving and environmentally friendly technology. Its core technologies are substrate seedling raising and bare-seedling transplanting. It passed appraisal by the Ministry of Agriculture in 2004 (Ministry of Agriculture achievement registration number: Nongkeguojianzi [2004] No. 0056), ranks at the international leading level among research of the same kind, has obtained multiple national invention patents, has achieved productization and serialization of the technology, entered production demonstration last year, and this
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Overview of Research Progress and Current Utilization of Propolis
Propolis is a resinous substance collected by honeybees from tree buds, bark and other parts of plants, mixed with secretions from the bees' hypopharyngeal glands, wax glands and other glands, and processed and transformed by the bees. Propolis is an opaque solid, brown, reddish-brown or grayish-brown in color, sometimes with a greenish tinge, and in a few cases nearly black. Natural fresh propolis has a resinous fragrance and is sticky and malleable. It begins to soften at 36°C, becomes hard and brittle and can be pulverized at 15°C, and melts into a viscous liquid at 60-70°C. Propolis is a resinous substance, highly soluble in ether, chloroform, acetone,
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