Due to the process of the production process, the ratio of the production process, the ratio of the drug, the amount of nutrient added and the time, the antagonism between the drug and nutrients, the preservation and transportation factors, the broiler is in the process of feeding. Feeding premixes often presents a variety of abnormalities. Now list some common problems and causes, and propose some countermeasures for the reference of the majority of farmers.
One ascites
It mainly refers to the accumulation of a large amount of serous liquid in the abdominal cavity of broilers caused by various factors. There are many causes, such as selenium, vitamin E, and phosphorus deficiency; high-energy, high-protein compound feed. Management factors such as poor indoor environment, poor ventilation, high ammonia concentration; high altitude climate, thin oxygen; environmentally closed, anoxic, excessive carbon dioxide concentration; mildewed feed; disease factors such as secondary colibacillosis, aspergillosis.
The prevention and treatment of the disease should mainly be from the management and management personnel, paying attention to the reasonable proportion and sufficient amount of minerals and vitamins; improving the breeding environment, reducing the density, strengthening the sanitation and ventilation, changing the litter and doing environmental disinfection; supplementing vitamin E and selenium , commonly used 1ppm sodium selenite solution, let it drink, and supplemented with vitamin E pills. Use antibiotics early in feeding to prevent and reduce the occurrence of E. coli and Aspergillosis. Efforts to reduce the stress response of chickens and continuously improve the disease resistance of chickens. Vitamin C and multivitamins can be added in 50 mg/kg by mixing.
Second death
Mainly refers to acute onset, sudden death or acute death. The reasons are high protein and fat content in the diet; high copper and zinc content; insufficient selenium; unreasonable combination of vitamins and minerals; excessive light intensity, high stocking density; poor ventilation; cardiovascular system, respiratory system, digestion The system and so on have not been perfected and contradicted with rapid growth.
The prevention and treatment of the disease should be rationally formulated. From the second week, the protein content should be less than 20%, and the multivitamins (especially VBl, vB6, VA, vD, vE) and minerals should be sufficient. The fat content should not be too high. 3 mg of biotin can be added per 10 kg of material. In terms of controlling the illumination, 12 to 16 hours from the second week, 18 hours from 22 to 42 days, and 20 hours after 42 days, and the lights cannot be turned on and off at will. At 10 to 21 days of age, 3 to 4 grams of potassium bicarbonate per ton of feed was added for 3 days.
Three- soft
Mainly refers to a performance of broilers that can not stand, deformed legs and feet, and difficulty walking.
Nutritional factors: manganese deficiency, choline, niacin, folic acid, biotin, niacin in feed; large doses of phosphorus, chlorine and sulfur; lack of certain amino acids and tannins in feed; lack of VD3, insufficient VD, calcium and phosphorus Insufficient or improper ratio; VBl, vB2, vE lack; zinc deficiency.
Management factors: unreasonable feeding methods such as brooding cages; lack of exercise. Disease factors such as rickets, etc.
The prevention and treatment of the disease should be as follows: rationally prepare the diet to ensure that sufficient amounts of vitamins and trace elements are ingested every day, and 2000 IU of VD, 1% calcium, and 0.5% effective per kilogram of feed for 2 to 3 weeks. Phosphorus; it is strictly forbidden to feed mildewed feed; strengthen management and control the occurrence of disease or stress; it is best to use ground leveling during brooding; feeding a large amount of tetracyclines can affect the absorption of calcium and phosphorus, and sulfonamides affect the absorption of folic acid , pay attention to add and balance.
Four different
Mainly refers to the feathers and anus.
Nutritional factors: methionine, cystine deficiency; salt is too high or too low; the fiber content in the diet is low; the large volume of feed in the feed is too small; the feed lacks vA, vD, VE, vB2 and some trace elements such as Calcium, magnesium, zinc, etc.
Management factors: high density of feeding; temperature and humidity in the house are not suitable; poor ventilation; too strong or too weak light; stress.
Disease factors: coccidiosis, helminthiasis; diarrhea; some drugs such as anti-sphere drugs are high.
For the prevention and treatment of the disease, the diet should be properly prepared, and the nutritional components should be comprehensive; the appropriate anticoccidial drugs should be selected; the stress factors should be eliminated; the cause should be correctly judged, and corresponding measures should be taken.
Wuyi joint swelling
Mainly refers to unilateral or bipolar ankle arthritis swollen sputum.
Nutritional factors: lack of vitamins such as VB5, VB6, etc.; protein content in feed is too high; calcium is too high, calcium and phosphorus ratio is not appropriate.
Management factors: the humidity in the house is high, the temperature is low; the stocking density is too large.
Disease factors such as some diseases can cause swelling of the ankle joint, such as infectious synovitis, viral arthritis and the like.
The diet should be scientifically prepared to improve the feeding environment and prevent and control diseases.
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