Hepatitis C virus (HCV) Core Antigen Detection Kit is an HCV Antigen
Diagnostic Reagent which is a world-recognizing pioneering product in
China. the Institute of Basic Medical Sciences
under the Academy of Military Medical Sciences of the Chinese People's
Liberation Army. Based on the analysis of different gene subtypes' core
antigen sequences of HCV, conservative antigen amino acid sequences with
similarity and strong antigenicity could be defined. Monoclonal
antibody cells against different parts of core antigen sequences were
developed for product anti-HCV core antibody with high affinity binding
and specificity. What is more, through the functional matching of these
monoclonal antibody cells, HCV core Antigen Detection Kit could be
produced with the adoption of double antibody sandwich ELISA.
4. There is no special requirement for samples of serum or plasma.
HCV Antigen HCV Antigen,Core Antigen Detection Kit,Antigen Detection Kit,Diagnostic Reagent Hunan Runkun Pharmaceutical Co., Ltd. , http://www.runkun-med.com
Product Features
1. The sensitivity for detection is nearly as high as that of HCV-RNA.
2. The whole operation process is the same as the conventional ELISA. No special instrument or equipment is needed.
3. The infectious "window period" of HCV could be reduced to two weeks
which is about 35 days on average shorter than commonly used antigen
diagnostic reagent in the market.
First, how to choose cows? Choose cows to do eight look. A look at the head: the head and neck are long and elegant, with beautiful outlines, and they clearly show subtlety. The nose is wide and the eyes are uplifted. It is gentle and bright. Second, look at the neck: The neck is long and thin and is well-integrated with the head and shoulders. There are countless tiny folds on both sides. Three to see the chest: chest wide and deep, ribs curved round, wide rib spacing. Four to see the back waist: back long, wide and straight and good connection to the waist. The waist should be straight and both must not have dents or bulges. Five to see the abdomen: the middle body should develop well, the abdomen is thick, is barrel-shaped, does not sag. The width and depth of the abdomen means that it can accommodate a large amount of feed and can be fully digested and converted into milk. Six to see four limbs: strong and powerful limbs, limbs are upright, no internal arc and external arc phenomenon. The hooves are medium-sized, round, and have no cracks on the hoof. Seven look at the breast: The breast is the most important part of the cow, the breast is basin-shaped, the veins of the milk vein are rich, and the four nipples are well-distributed. Eight-colored hair coats, black-and-white flowers, large slices, black and white boundaries. The coat is soft, shiny and shiny, and the leather is easy to pull up. Sebum secretion is strong. Second, what is the best breed of dairy cows? At present, the breeds of cows raised in our city are mainly black-and-white cows (known as Chinese Holstein). It has a history of 100 years in China. The main features of the cows are black-and-white flowers. The average annual yield is about 6000-7000 kg. In recent years, the average annual yield of excellent dairy cows imported from the United States and Canada has reached 10,000-12,000 kg. What are the main feeds that cows need? There are two main types of feeds that cows need. One category is roughage (due to dairy cows as ruminants), roughage varieties include all kinds of grass, hay, corn straw, corn silage, Northeast China Leymus chinensis, high quality oysters, etc., and the amount of feed per cow per day is about 30— 35 kg (including silage). One category is concentrate feed, corn, soybean meal, bran, etc. The feed amount of each cow per day is 5-6 kg. Fourth, how to make blue (yellow) storage feed? 1. To make corn silage silage, we must first construct a silo. The shape of the silo is generally square or rectangular, and the size depends on the size of the herd. Usually, 500-600 kg of silage corn straw can be stored per cubic meter of cellar. The silo is best built with stones, bricks, and cement. In order to obtain the ideal corn silage feed, attention should be paid to the following points in the production process: (1) Timely harvest. Green barley corn is generally harvested at the waxing stage. At this time, cornstalk has a high nutrient content, high yield, and appropriate water content, which is a good time to make silage. (2) timely transportation. The harvested corn stalks are promptly transported to silo sites to prevent evaporation of water and loss of leaves, resulting in loss of nutrients. (3) quick install, quick seal. Whether or not silage can be made quick, fast, fast, and has a great relationship with the quality of silage. The whole corn stalks should be cut into 3-5 centimeters after being cut into the cellar by the side-scraper, and the requirements are to be stepped on as they are pressed. The pressure should be as good as possible. When silage corn stalk materials are loaded to a height of about 1 meter above the cellar surface, Cover it with a plastic film and compact it with a mud cover to prevent water leakage. (4) open cellar, use. After 40 to 60 days after the silage of corn silage, the cows can be opened in the open cellar. Excellent silage cornstuff feed is yellow-green, with a sour taste and wine flavor, PH 4-4.8. The advantages of silage corn stalk feed are: 1 less nutrient loss; 2 good palatability; 3 maintain green and fresh state; 4 long shelf life. Silage cornstalk in winter is a good feed for dairy cows, pregnant cows and yaks. 2, corn stover yellow storage method: autumn corn ear harvest, the dry corn straw mash, according to 100 kg, plus 50 kg water, plus 2 kg of high-quality urea (urea added in the water better) with reference to silage procedures, After storage in the silo for 40 days, the cattle can be removed. Fifth, how to choose the type of cow? Cows usually enter the puberty at about 12 months of age, but the best breeding time is 14-17 months of age, and the weight is between 355-400 kg. Many breeding methods use artificial insemination technology. Animal husbandry technicians purchase fine stems or pellets of frozen semen, usually at -196°C. The site was diluted with thawing fluid and artificially inseminated with estrus. After mating, you should observe and perform a pregnancy test within a certain period of time to determine whether you are pregnant. Sixth, how to give birth to calves? Before production, prepare the production, the cowshed should be kept quiet, the cowshed doors and windows should be closed, and the winter should be kept warm. In order to facilitate the production, the cow should not rely on the corner when lying in the ground. Prepare iodine, disinfecting scissors, clean sand and warm water. Normal cows contracting and giving birth 30-40 minutes can produce calving without artificial labor. If you have a long period of contraction, a weak contraction force, and a difficult fetal output, you should gently pull out the calf by hand. If fetal clothing is not broken after fetal output, tear it off immediately to avoid death. After the yak is delivered, the first step is to remove the fetal mucus from the oral cavity and nasal cavity of the calf, which is convenient for breathing. Then the body of the calf is wiped dry with a towel. The umbilical cord tends to rip itself off. If the umbilical cord breaks continuously, it can be sterilized with some iodine. Then strip off the hoof hoofs to stand. The yak is then placed in the ready-to-breed bar (house), and the cow's birth clothing can be delivered 6-7 hours after the fetus is produced. How to cultivate a mother yak? After the yak is born, it must be separated from the cow immediately and artificially fed. First hand wash and dry it. Put the index finger and middle finger into the mouth of the burdock, then put the handle and the mouth of the sirloin in the mixed milk of the bucket or pot. The burdock sucks milk from the middle of her fingers. After a few exercises, the burdock can drink it. Feed colostrum. Because colostrum is different from regular milk, it has a yellowish color, a thick milk, and a large amount of protein. Minerals and vitamins A and D are two to five times higher than regular milk, and contain antibodies and enzymes to make it easier to remove. Meconium effect. The colostrum is fed 40 to 90 minutes after the calf's production, and it usually takes 5 to 7 days to feed the colostrum. The calves are fed 5 times a day after birth and each dose is no more than 2 kg. The milk must be fresh, the milk barrel must be washed cleanly, and the disinfection should be done carefully. The milk temperature should be around 30°C. Also early drinking warm water, starting from 5-6 days after birth, four times a day, the best warm water and milk temperature the same, 1-2 months after birth, you can let the yak freely clean clean water. How to cultivate bred cows? Weaning calves should gradually transition. Yaks are bred from 7 months to the pre-natal stage, and sufficient quality hay and mixed concentrates should be given at this stage. Generally, the ratio of mixed concentrates for bred cattle less than 1 year old is: cereals, woodcutters account for 30% each, cakes, and dregs account for 20% each, and the amount of minerals is 1 for the total amount of mixed concentrates. %, salt 2%. For 1-2 years old bred cattle, if there is good quality hay in winter or good grazing conditions in summer, 1.5 kg of concentrate feed can be fed. If the quality of grass is not good, 2-3 kg of mixed concentrate should be given. When bred cows are in 3-4 months of prenatal time, they must increase the amount of concentrate feed, transfer them to adult cowsheds, and feed them as standard feed for pregnant dry cows. For bred oxen, grazing should be done as much as possible, and the amount of exercise should be increased. In order to give priority to feeding, it is necessary to adopt the method of eviction, which is two times a day, one hour each time, and free exercise for the rest of the time. Additional drinking water tanks should be added to the stadium to allow them to drink water freely. Nine, how to do a good mechanical milking? There are generally "fish bone", "pipeline" milking machine system and single, double barrel push milking machine. The "fish bone" and "pipeline" milking machine system is suitable for large dairy farms with more than 100 heads. This machine milking system includes electric motors, vacuum pumps, vacuum pump regulators, vacuum gauges, beaters, milk collectors, Milk barrels, air-cooled milk storage tanks, etc. The method of using a milking machine is to start the motor and drive the vacuum pump to express the vacuum pressure to a 350-380 mm mercury column. Then turn on the big hose and vacuum tube on the milking machine, turn on the switch, and then put the baby cup on the nipple from the far side, and you can start milking. The number of beats of the beater should be controlled at 60-70 times per minute. At the end of milking, close the milking bucket switch first, and then close the switch on the big hose. Use the machine to prevent milking. Ten, how to prevent cow disease? (1) Strengthen the management of dairy cows and adhere to the principle of “prevention as the main comprehensive prevention and control of cow diseaseâ€. Every year in the spring and fall, cows should be epidemic- and immunized. At the same time, large-scale disinfection inside and outside the venue should be carried out to ensure that the cattle body, cowshed, surrounding environment, and all utensils are clean and hygienic, and the health care of cows is strengthened. (B) introduce the main cattle disease prevention and control methods: (1) mastitis: often due to milking technology or improper breastfeeding, breast and cow bed is not clean, bacteria invade the mammary gland caused by the milk. The breasts of acute mastitis are red, swollen, hot, painful and hard. The cows do not milk, have little milk or stop, the milk is red and yellow, there are flocs or even noodles, and sometimes the milk is squeezed out. Normal body temperature not tall. Treatment methods: Generally, 1 million units of penicillin, 0.5 grams of streptomycin, and 25 milliliters of distilled water are injected into the affected nipple. Pay attention to repeatedly squeeze milk, 4-6 times a day will help recovery, severe cases should be symptomatic treatment in time. (2) Dairy Cow Pest Disease: Occurs mostly in summer and autumn. The pathogens are Tyler spp. and Babesia spp. Symptoms characterized by red, white, urine, anemia, jaundice, and edema. Treatment: Benil (bloodfly net) 1g per bottle with 5% solution of distilled water, deep intramuscular injection. (3) Endometritis: Common disease cattle from the vulva out of the red or brown odor secretions, cloudy mucus or pus-like mucus, especially in the lying or estrus stage out more. Treatment method: Disinfectant (2.2% rivanol, 0.1% benzalkonium, 0.05% nitrofurazone), 1% oxytetracycline suspension 500-1000 ml, inject into the uterus with a skin tube once a day. (4) Carrot disease: Dairy cow hooves are soaked in feces and urine for a long time. The sports ground is low-lying and muddy, which makes the hoof shell soft bacteria invade. Symptoms: The diseased cow walks and walks, and the diseased limb does not dare to bear heavy weight. There are many lying grounds and the bottom of the rot is sore. Treatment: Wash the hooves with formalin, trim the hoof, dig the rotted tissue on the bottom of the hoof, and fill the affected area with 5% iodine tampon or turpentine cotton balls.