The sika deer enters the breeding period every February. At this time, due to the regulation of sex hormones, the female deer showed an increase in sexual activity. The ovaries produced mature eggs, regular ovulation, and regular estrus. This period of female estrus in the morning and evening and estrogen secretion, filter growth, egg maturation has a direct relationship. The female deer sexual activity, secretion of hormones, and egg growth depend on the full energy protein in the feed, rich in vitamins and minerals. Therefore, to ensure that the female deer obtains enough nutrients during the breeding period is beneficial to the development of the fetus and is of great significance for improving the conception rate. The diet of the female deer during the breeding period should be dominated by coarse and juicy feeds, supplemented by concentrates, and the combination of calcium and phosphorus in the diet should be reasonable, and the supply of minerals and vitamins should be sufficient. Concentrates mainly include soybean cakes, corn, sorghum, bran, etc., while feeding some wheat carrots and other vitamin-rich green feed, and to ensure the supply of vitamins. The average daily feed volume is 51 kg, including 51 kg of concentrate, 79 kg of juicing material, and 31 kg of green coarse material; 1 g of calcium powder and 1 kg of salt; 9 times of coarse and concentrated feed on a daily basis; Conditional deer farms should strengthen grazing and choose legumes and grassy pastures to graze for 6 hours a day. After grazing, make supplements once and supply clean drinking water. In the female deer mating period, providing adequate and appropriate nutrition can promote the female deer libido, early estrus, early ovulation, ovulate eggs, and improve the conception rate. The female deer during the breeding period should be reared with the juvenile deer, and at the same time adjust the structure of the deer, eliminate, eliminate, and isolate the female deer that is weak and sick. The other deer were regrouped into core groups, production groups, and breeding groups according to species, blood status, age, health status, and breeding methods. The general population is composed of a female deer and 13 female deer. When the female deer is mated, special personnel should be set on duty to observe and record breeding conditions. When the female deer estrus, excited, eye flow mucus, odor abnormalities, often buzzing, increased genital mucus, like the close to the buck. Oestrus estrus 3 hours, to grasp the timing, timely breeding. Observe after mating, and find that there is no conception to supplement in time to prevent missed matches and multiple matings. In a estrus period, the number of female deer breeding is generally controlled at 13 times. After mating, care should be taken to prevent the female deer from drinking plenty of cold water, and the stags should be reared in groups at the same time. During the breeding period, the female deer usually isolates the deer first and then participates in breeding. However, some female deer have late farrowing (in June). Therefore, some deer farms use female deer and deer to participate in mating, and the rate of pregnancy is also relatively high. high. China Agricultural Network Editor
For the treatment of diseases of the respiratory system:
Diseases and conditions of the respiratory system fall into two categories: Viruses such as influenza, bacterial pneumonia and the new enterovirus respiratory virus that has been diagnosed in children; and chronic diseases, such as asthma and chronic obstructive pulmonary disease (COPD). According to Dr. Neal Chaisson, who practices pulmonary medicine at the Cleveland Clinic, there is not much that can be done for viral infections but to let them run their course. "Antibiotics are not effective in treating viruses and the best thing to do is just rest," he said.
COPD is the intersection of three related conditions - chronic bronchitis, chronic asthma and emphysema, Chaisson told Live Science. It is a progressive disease that makes it increasingly difficult for sufferers to breath.
Asthma is a chronic inflammation of the lung airways that causes coughing, wheezing, chest tightness or shortness of breath, according to Tonya Winders, president of the Allergy & Asthma Network. These signs and symptoms may be worse when a person is exposed to their triggers, which can include air pollution, tobacco smoke, factory fumes, cleaning solvents, infections, pollens, foods, cold air, exercise, chemicals and medications.
Lung cancer is often associated with smoking, but the disease can affect non-smokers as well. Every year, about 16,000 to 24,000 Americans die of lung cancer, even though they have never smoked, according to the American Cancer Society. Like all cancers, lung cancer is caused by the uncontrolled growth of abnormal cells.
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