Protein is the material basis of life and is the nutrient necessary for the growth, development, reproduction and production of ducks. To maintain the activity of ducks requires a sufficient amount of protein, the basic unit that constitutes a variety of proteins is amino acids, and some amino acids such as arginine, lysine, methionine, etc., cannot be synthesized or synthesized in ducks and must be supplied by feed. Protein deficiency is prone to occur when there is insufficient or poor quality protein in the feed.
1. Diagnose based on
(1) Cause The protein content in the feed is low, especially animal protein is too little; or the proportion of essential amino acids in the protein is inconsistent, and it cannot be completely transformed and used to cause waste. For example, lysine and methionine are often lacking in plant feeds. If these two amino acids are insufficient, the use of other amino acids will be limited, and protein utilization will not be improved.
(2) The main symptoms of the young duck growth retardation, weight loss, edema, anemia, chills and crowded with each other, body temperature often falls below 40 °C, followed by loss of appetite, mental stagnation, duck wings drooping, or even completely stop production Eggs and ducks have poor semen quality, and their breeding and hatching rates are low. Usually the disease is slow, often secondary to other diseases.
(3) Changes in necropsy Most ducks were thin, muscles were atrophic, and there was almost no adipose tissue in the whole body. The original adipose tissue on the sulcus, subcutaneous and mesentery became gel-like infiltration. The blood is thin and pale, coagulation is slow, subcutaneous edema is sometimes present, and fluid accumulates in the abdominal cavity, chest cavity, and pericardial sac.
2. Prevention and control According to the duck's different ages and production characteristics, the demand for protein is given to the full price diet to ensure the supply of essential amino acids, vitamins, and minerals. The standard content of crude protein in duck diets was: 0-2 weeks old 20%, 2-6 weeks old 17%, 6-8 weeks old 15%, and duck 17.5%. The animal protein should account for 3% to 10% of the diet, and the proportion of plant protein in the diet can reach 15% to 25%. When formulating feeds, in addition to paying attention to the quantity and quality of protein, attention should also be paid to animal protein (such as fish meal, meat and bone meal, silkworm cocoon powder, feather meal, lotus root, lotus root, etc.) and plant protein (such as peanut cake, bean cake, rice bran, The proper mix of bran and barley flour. The types of plant protein feeds are best diversified so that they can complement each other with the deficiency and type of essential amino acids.
Once this disease occurs, protein or essential amino acids should be added immediately, especially lysine and methionine. Generally, good results can be obtained. If supplements are not given for too long, the effect is not good.
Corn Gluten Meal,Corn Gluten Meal Herbicide,Corn Gluten Meal Lowe'S,Corn Gluten Meal Bad For Dogs
JILIN COFCO BIO-CHEM AND BIO-ENERGY MARKETING CO., LTD , https://www.cofco-biotech.com