Cow magnets are popular with dairy farmers and veterinarians to help prevent hardware disease in their cattle. Cattle Magnet Cage,White Cattle Magnet Cage,Veterinary Magnet Cage,Cow Magnet Cage BAOYING CHENGDONG SOCIETY WELFARE FACTORY , http://www.icareartag.com
Cow magnets are popular with dairy farmers and veterinarians to help prevent hardware disease in their cattle. While grazing, cows eat everything from grass and dirt to nails, staples and bits of bailing wire (referred to as tramp iron). Tramp iron tends to lodge in the honeycombed walls of the reticulum, threatening the surrounding vital organs and causing irritation and inflammation, known as hardware disease. The cow loses her appetite and decreases her milk output (dairy cows), or her ability to gain weight (feeder stock). Cow magnets help prevent this disease by attracting stray metal from the folds and crevices of the rumen and reticulum. One magnet works for the life of the cow. These cow magnets also make a great addition to your science project. These magnets are powerful and are great for general experimentation with magnets. There are several kinds of cow magnets: 1) Ceramic cow magnet: This rectangular cow magnet is made of ceramic 5 (strontium ferrite) magnet material; Its special magnetization pattern causes nails and other sharp metal objects to line up along the length of the magnet where they are no longer a danger to the cow; The FDA-approved epoxy coating is gentle on the cow and helps protect the magnet from chipping; Rounded corners ensure safe and easy passage to the reticulum2) AlNiCo 5 cow magnet: A favorite of dairymen and vets for over 30 years; This is the standard cast AlNiCo cow magnet with bright, metal finish; It is non-toxic and non-corrosive in use
Fresh cut flower preservation technology
Fresh cut flowers is an agricultural product with artistic and ornamental value. The quality is good or bad is reflected by the ornamental nature, including the size, color and color of the flower bud, the coloration of the leaves, the stoutness of the stem, the uprightness and the viewing time, and the actual economic value is closely related to these aspects. To achieve an ideal product value, related to flower varieties, cultivation techniques, etc., and also related to post-harvest processing technology, cut flowers from harvested into goods until the loss of use value, the whole process is shorter than the fruits and vegetables, easy to corruption, cut flowers The post-harvest loss rate is about 20%, so it is very important to use a comprehensive factor to maintain the visibility of fresh cut flowers. The cut flowers cultivated under the best cultivation conditions will have the best quality and post-harvest life. First, the cultivation of factors 1. Select a good cut flower species and varieties of different types of cut flowers, post-harvest life is very different. For example, the life span of vases of Anthurium can reach 20LL~41 days, while that of Gerbera has only 38 days. The post-harvest life of cut flowers of the same species and different varieties often varies considerably. For example, the “Lorena†vase of rose varieties can reach a lifespan of 14.2, while the miniature rose season is generally 7.1 days. In addition, the disease resistance, resistance, storage, and growth of other varieties are also different. 2. Appropriate illumination In the production of cut flowers, the light intensity has a great influence on the photosynthesis of the plant, and the photosynthetic efficiency directly affects the carbohydrate accumulation in the cut flowers. Tests have shown that the lifespan of carnations and chrysanthemums grown under high light intensity is longer than that of carnations under low light conditions. And under low light, the growth of the stem is longer, the tissue is not ripe enough, and the stem is slender. When the vase is cut, it is easy to produce bent stems, affecting the quality of the flowers and the viewing period. When the light is low, the petals of the Chinese rose are blue and pale, and the color of the flower is affected. However, the stronger the light, the better. When the light is too strong, the cut flower tissue will be reddish. 3. Effect of temperature An excessively high temperature during cultivation will shorten the shelf life of cut flowers and reduce their quality. 4. Effect of fertilization Fertilizer is a nutrient for plant growth. It is very important to maintain suitable amounts and proportions of NPK and other nutrients, which will help flower growth, increase resistance to adverse environmental factors, reduce the chance of infection, extend the post-harvest life of cut flowers, and extend shelf life. period. 5. Influence of air humidity The high air humidity will create favorable conditions for the reproduction of some harmful bacteria and fungi, and increase the possibility of infection of flowers. Diseased cut flowers will produce more endogenous ethylene, which tends to accelerate the aging process. Therefore, attention should be paid to the ventilation and ventilation of the cultivation environment. 6. Harm of diseases and pests During the cut flower cultivation process, the occurrence of pests and diseases should be strictly controlled, which is crucial for the production of high-quality cut flowers. Diseases and insect pests damage the plant organs and tissues, reduce the appearance quality of cut flowers, dehydration of tissues, accelerate the wilting of cut flowers, stimulate the production of endogenous ethylene, and thus accelerate the ageing of cut flowers. Studies have shown that a large amount of ethylene is produced in plants such as Botrytis, Alternaria, Puccinia, Cryptosporidium, Rayomyces, Sclerotinia, and other plant diseases. 7. Air Pollution In the production of cut greenhouses, care should be taken to avoid air pollution. The main sources of pollution are gas, such as those generated by internal combustion engines, oil burners, and gas stoves. These exhaust gases contain a large amount of ethylene and other harmful substances, they will accelerate the aging of cut flowers, causing physiological damage. Second, cut flower processing principles after harvesting Technical treatment is to maintain a good physiological state of the flower an important process, the general principles are as follows: 1. Cut flowers should be cut at the appropriate stage of speech, this is to ensure that cut flowers inherent quality and shelf life an important part; 2 The flower stem should be inserted into the water immediately after harvesting and placed in a damp environment to prevent sun exposure; cut flowers should be pre-cooled as soon as possible to remove the field heat brought by and enter the cold chain. Cold storage is the main measure for cutting fresh flowers. Refrigeration temperatures vary depending on the species. 3. Cut flowers that require long-term storage or long-distance transportation should be first hydrated. Silver-sulfurized silver (STS) pulses should be applied to ethylene-sensitive cut flowers. Or 1-methylcyclopropene (1-MCP) treatment to prevent excessive water loss during storage and transportation; 4. The use of various cut flower preservatives is a necessary measure for post-harvest treatment technology. Fresh-keeping agents include hydration treatment solution, stem-end impregnation solution, pulse (or silver thiosulfate pulse) treatment solution, 1-MCP treatment agent, bud open solution, and bottle retention solution; 5. The key measure for storage and transportation is low temperature , high humidity, fast. Third, the fresh flower agent Here we have to focus on the role of floral preservatives. After the cut flowers are cut, they leave the mother plant and are cut off from the source of nutrition and water to become independent organisms. After harvesting, in order to maintain the best quality, delay aging, and resist changes in the external environment, flower preservatives are often used to treat them. Under the premise of not causing environmental pollution, it can absorb preservatives through the stem base or other ways to regulate its physiological metabolism and delay the aging process. Many cut flowers and cut leaves are treated with preservatives, which can extend shelf life by 2LL~3 times. The use of flower preservatives can also increase flowers, maintain the color of leaves and petals, and thus improve the quality of flowers. Most commercial preservatives contain the following types of substances: carbon sources, bactericides, ethylene inhibitors, orange antioxidants, water, growth regulators and mineral nutrients. 1. Carbohydrates Carbohydrates are the main nutrient and energy source of cut flowers. They can maintain all physiological and biochemical processes of cut flowers after leaving the mother. External sources of sugar will participate in prolonging the lifespan of cut vases and serve to maintain the structure and function of mitochondria in cut flowers. Increase water absorption by regulating transpiration and cell penetration to promote water balance. Sucrose is one of the most widely used carbohydrates in preservatives, and fructose and glucose are sometimes used. Different types of cut flowers or different varieties of the same species, the most appropriate concentration of sugar in preservatives. The optimum sugar concentration is also related to the treatment method and the length of time. Generally speaking, for a specific cut flower, the longer the preservative treatment time, the lower the concentration of the required sugar, and therefore the pulsed liquid (shorter time after treatment) The sugar concentration is high, the bud open solution has a medium concentration, and the bottle inserter maintains a low sugar concentration. 2. Bactericidal agents Microorganisms that grow in vases include bacteria, yeasts, and molds. After these microorganisms multiply, they hinder the stems of flowers and stems, affect the water absorption of cut flowers, and produce ethylene and other toxic substances to accelerate cut flower senescence. In order to control the growth of microorganisms, antiseptics may be added to the preservative or mixed with other ingredients. Commonly used fungicides are the following: (1) 8-Hydroxyquinoline is a broad-spectrum fungicide, with the characteristics of easy to combine with the metal, can take away the iron and copper ions in bacteria, and thus have antibacterial effects. The substance can lose tannins dissolved from the stem base incision into the bottle insert solution, inhibit the proliferation of bacteria, and prevent catheter blockage. At the same time, it can also reduce the pH of the water (ie, increase the acidity of the water), promote flowering water absorption, and reduce the purpose of transpiration. In addition, there is an effect of suppressing ethylene production. 8-quinolinol sulphate and 8-hydroxyquinoline citric acid are commonly used. The application concentration is 200LL~600 mg/L. (2) Slow release of chlorides Some stable and slow-release chlorides are commonly used as disinfectants in swimming pools and are also used in preservative formulations. The hydrogen concentration is 50 mg/l up to 400 mg/l. The frequently used compounds are sodium dichloro-trinaphtalonetrione and sodium dichloroisocyanate. (3) Quaternary amine compounds are widely used as fungicides, especially in tap water or hard water. A boat does not produce toxic effects on flowers and is more stable and durable than 8-hydroxyquinoline. Such compounds include n-alkyldimethylbenzylammonium chloride, lauryldimethylbenzylammonium chloride, and the like. (4) Thiabendazole is a broad spectrum fungicide with a concentration of 300 mg/L. Thiabendazole has low solubility in water and can be dissolved first with ethanol. Thiabendazole also exhibits a cytokinin-like action, which can delay the release of ethylene and reduce the sensitivity of cut flowers to ethylene. 3. The ethylene inhibitor silver thiosulfate (STS) is the most widely used ethylene inhibitor in the flower industry. It has a good mobility in plants and has a highly effective inhibitory effect on ethylene synthesis in flowers. It can effectively extend a variety of flowers. Bottle life. STS needs to be used with it. It is best to use it immediately. If it is not used immediately, it should be kept away from light. It can be stored in a dark environment at 20°C for 4 days. 4. The water is preferably made of ion-free water, and the pH of the water used is generally 3LL~4 in order to reduce the proliferation of microorganisms, enhance the water absorption capacity of the stem, and increase the flow rate of the freshness-preserving agent in the flower stem. Therefore, most preservative formulations contain an acidifier (commonly used citric acid) to lower the pH. 5. Growth Regulators Growth regulators are used in flower preservatives. They include synthetic auxins and plant endogenous hormones. Plant growth regulators can be used alone or in combination with other ingredients. It can cause or inhibit various physiological and biochemical processes in plants, thus delaying the aging process of cut flowers. Among them, cytokinin is the most commonly used, it can mainly inhibit ethylene production, application can be sprayed or dipping and other methods, the optimal concentration of 10000ppm, dipping for 2 minutes, if too long, will also produce With adverse consequences, carnation works best. Commonly used are: (1) Cytokinin Among 6-benzyl adenine is most commonly used to prevent yellow stems and leaves, promote stem water absorption, and inhibit the role of ethylene. (2) The effect of gibberellin alone is not obvious, and it is often used together with other agents, mainly for flowering agents. (3) Abscisic acid promotes stomatal closure and inhibits transpiration loss. 6. Minerals are mainly mineral elements that are needed for plant growth, such as potassium, magnesium, calcium, and iron. Provide mineral nutrition and extend the freshness of cut flowers. At present, all countries in the world have paid great attention to the preservation of flowers. The Netherlands has a large number of research papers and monographs about the postharvest physiology and preservation technology of flowers every year, providing many for flower producers, wholesalers, retailers and consumers. Helpful information. In developed countries, there are many professional flower fresh-keeping agent production companies. These companies have high quality products and good service. Flower producers and distributors can directly purchase various flower preservatives from professional companies. After many years of research, the well-known Pokon-Chrysal company in the Netherlands has produced dozens of preservatives for different cut flowers. In all flower auction houses in Western Europe, it is explicitly required that the listed Liora flowers and carnation cut flowers be treated with silver thiosulphate (STS) in advance. Once the tested samples are not treated with STS, the entire batch of cut flowers will be expelled from the auction site. In addition, new materials such as dihydroisocyanuric acid (abbreviated as DICA) and 1,3-dihydro-5,5-dimethylhydantoin (DDMH) have been applied to improve the quality of cut flowers. Take 50mg of any one of these two kinds of chlorides into 1000cc of water, and the cut flowers treated for one minute were killed and the seven kinds of bacteria in the test bacteria were treated for five minutes, then all were sacrificed. Test bacteria, and can maintain 7LL ~ 8 days of bactericidal effect. The quality of cut flowers treated with DICA into DDMH chloride is slightly improved. If used together with sucrose, the quality of cut flowers can be further improved and the cut flower life can be prolonged. Yokohama City University in Japan recently developed a floral preservative based on synthetic amino acid, ethylthione, which can replace the currently used silver thiosulfate floral preservatives to reduce environmental pollution. South Korea's A&T Chemicals has recently developed a flower preservative that uses nano-new materials. It has easy-to-preserve, versatile, and can be used to process liquids and maintain the characteristics of liquids. The flower stalks treated with YOUNG 500 are straight, the stems are upright, the leaves are bright green, and the petals are gorgeous. There is no obvious difference in effect from Chrysal et al. YOUNGSOO products have come to China and have been applied and observed by a number of Chinese companies. As promised by A&T Chemicals, the products are safe, reliable, and have a good preservation effect. The shelf life of cut flowers has been significantly extended, and the vase life has also been significantly extended. An excellent fresh cut flower preservative.