Poultry nutritional disease generally refers to a disease that cannot be maintained due to the lack of certain nutrients in the body and the maintenance of normal physiological and production needs. The frequent nutritional deficiencies are protein deficiency, vitamin deficiency and inorganic salt deficiency.
First, the clinical symptoms: thin, slow growth, sputum, eye disease, diarrhea, dull coat, sputum and heterophilia, etc., but also induce other infectious diseases, great harm to poultry. The causes of the disease are various, and there is a direct relationship between the removal and the quality of feed, and it is also closely related to the metabolism of environment, stress and feed intake, and the incidence in summer is much higher than in other seasons.
Second, prevention and control measures: In order to reduce the occurrence of nutritional deficiency disease in summer, according to the cause of the disease, take appropriate measures. In the summer, first of all do summer cooling work, such as strengthening ventilation, spraying cold water, blocking light, etc., in order to minimize the impact of heat stress, to reduce the amount of drinking water, increase feed intake, reduce nutrient loss in the body, ensure the body The purpose of normal metabolism. Second, we must pay attention to the storage time and conditions of feed, it is best to use fresh feed, summer should be stored in a ventilated, dry, cool place, the time should not exceed 15 days, otherwise it should be added in the use of nutrients (such as vitamins, protein feed, etc. ) to prevent the lack of nutrients.
KN95 Masks are anti-virus. KN95 masks are similar to N95 masks, except that one is a Chinese standard and the other is an American standard.
If there are two numbers of 95, it means that the protective ability of this mask is above 95%. That is to say, for tiny substances larger than 0.3 micrometers, the mask has a defensive ability of more than 95%, and it can block tiny substances larger than 0.3 micrometers outside the mask. Viruses and bacteria are generally larger than 0.7 micrometers. Therefore, using a mask such as KN95 can effectively protect against viruses.
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