The soft shoe insoles heel stickers is composed of hydrocolloid, polyurethane film and release paper. White heel sticker has strong adhesion and easy to reveal the properties. Heel pads heel sticker heel liner is suitable for the prevention and protection of abrasions and crushed parts of the foot, which can effectively relieve the friction with the shoes and prevent the formation of blisters and calluses. Clean the skin and keep it dry before use, making sure there is no dirt around the wound. Open the package and remove the product, gently tearing off part of the protective layer as directed by the arrows. Align the center of the product at the wound, fix one end, and then tear off the other side of the transparent film. Apply the product to the skin and fix it with a gentle touch. Do not apply high heel pad heel stickers to infected wounds. Stripper heel stickers is for external use only and not recommended for use with ointments. When removing the anti wear heel sticker, please stretch slowly along the skin, do not tear it quickly to avoid too sticky and cause the wound to be strained. If have allergies or other diseases, please consult a doctor before use. Adhesive residues can be removed with alcohol after use. Keep out of reach of children.
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To select high-yielding cows to "five look"
A look at dairy cow breeds in the world, mainly Holstein (also known as black and white cows), Juan Shan cattle and so on. More than 95% of China's dairy cattle breeds are Chinese Holstein cows (Chinese black-and-white cows), as well as Xinjiang brown cows, Sanhe cattle and grassland red cows. Holstein is a large dairy cow with high milk production. The highest annual milk production in China is 8773.2 kg, and the highest milk production in the United States is 30833 kg. The milk fat rate is 3.3%. Holstein cows should be preferred for feeding cows. Secondly, it is an important basis for selecting high-yielding dairy cows to measure milk production and milk fat percentage indicators. For each dairy cow produced, milk production should be measured once a month, and milk fat rate should be analyzed once by the milk collection unit. Under normal conditions, dairy cows produce calves 1 time in 1 year, 2 months before termination of milk production, and 305 days in one year (one) lactation period. From a genetic point of view, there is a negative correlation between milk production and milk fat percentage. Therefore, in selecting high-yielding dairy cows, milk fat percentage should be considered in addition to milk production. Secondly, high-yielding dairy cows have one more characteristic. The peak period of milk production after delivery is later than that of low-yielding cattle. The high-yielding cattle are 56-70 days after delivery. The low-yield cattle are 20-30 days after delivery and the peak duration is longer. Long (about 100 days); after the peak period, the milk yield of the high-yield cattle is lower than that of the low-yield cattle. Therefore, to purchase dairy cows, the purchaser must check the milk production records of the cows to be purchased or observe live milk production on the spot. Third, look at the appearance and appearance of dairy cows The relationship between the appearance of dairy cows and their milk production results is very close. Practice has proved that the selection of a good body shape, especially good breasts and limbs, is very important for improving milk production performance. The body characteristics of normal high-yielding dairy cows are large in size, large in medium volume, obvious in breast size, good in breast attachment, strong in limbs and feet, and moderate in nipple size. Specific requirements are: American Holstein adult bull weight 1100 ~ 1200 kg, body height 160 ~ 165 cm, into cows 600 ~ 700 kg and 140 ~ 145 cm; overall is a triangle, that is, from the front, with armor as the vertex, Shun The two shoulders lead downwards by two straight lines. The two straight lines are wider and downward. They are triangular; when viewed from the side, the hindquarters are deep, the forequarters are shallow, and the top and the ventral lines extend forward and intersect to form a triangle. The base of the breast should be extended and extended, with good adhesion; 4 milk areas are well-proportioned, and the rear area is high and wide. The nipples are vertically cylindrical and well-spaced. In short, those who have a high body size, a clear profile of milk, and a developed digestive, reproductive, and lactating organ must be able to eat, drink, and prolific milk. Fourth, the pedigree data view includes: dairy cow breed, cow number, date of birth, birth weight, adult body size, body weight, appearance rating scale, and cow's milk production scores. In the pedigree, there should also be parental and grandparental weights, appearance scores, grades, milk yields, milk fat percentages, and grades. Also check the records of the prevention and quarantine, breeding and health of cattle diseases. To purchase dairy cows, quarantine measures must be strengthened to avoid afferent diseases, especially tuberculosis, infectious abortion, leptospirosis, trichomoniasis, and mastitis. The age and parity of dairy cows have a great influence on milk production. Under normal circumstances, the initial age of 16 to 18 months of age, weight should reach 70% of the cow's weight. Generally, the first and second-born cows have lower milk yields, 3 to 5 fetal cows have increased milk production, and 6 to 7 fetuses have milk-producing amounts that have declined gradually. According to experiments, the milk fat percentage decreased slightly with the increase in the age and parity of dairy cows. Most people think that a high-yielding herd, if the average parity is 4 children, the reasonable parity structure is: 1 to 3 fetuses account for 49%, 4 to 6 fetuses account for 33%, 7 or more cows account for 18% .