2. Clinical symptoms
Observing the ducks, no abnormalities were found in the early stage, and the body temperature was not high. As the disease progressed, the affected ducks showed signs of lethargy, unsteady standing, and difficulty walking. The feet are splayed outwards, forming a splay or rolling. In severe cases, lameness, paralysis, diarrhea, and dry claws (webs) may occur. Some people fall to the ground due to diarrhea and spasms. The sick duck lands on its back and cannot stand despite struggling. Standing up, some individuals jump high and do somersaults. The sick duck appears to be unsteady, twists its neck, and is paralyzed. Subsequently, the tongues of the ducks protruded, the feathers around the eyes were wet, tears were shed, and the feces was thin. Among the large group, there were coughing, snoring (the dead ducks pinched their noses with their hands and mucus came out), movement disorders, stopping and walking, and then squatting. Paralysis or lying on one side, inconvenience or inability to feed, and the duck is thin and weak. The diseased duck's beak (upper and lower beak) is short, the duck's tongue is curved and protruding and everted (the tongue is exposed and drooping), like a hanged ghost, stiff and inflexible. It is difficult to recover after organic lesions in the duck's beak. In severe cases It affects feed intake, causing sick ducks to be thin and lethargic; some sick ducks are accompanied by lameness on one leg, unsteady standing or even falling to the ground, and the mortality rate is low. Affected ducks have short legs and are obviously smaller in size. When slaughtered, hair removal can easily break legs and wings. The size of the duck group is uneven, the tongue becomes longer, and legs are easy to break in the later stage. Some affected ducks have diarrhea.
3. Anatomical symptoms
There are not many anatomical manifestations. The main symptoms are shortening of the beak, normal texture of the upper and lower beaks, generally no beak softness, inflammation or necrosis, and calcification of tongue muscles. Hyperplasia, bone porosis throughout the body, showing that the bones are fragile and easy to break. Autopsy of internal organs showed no obvious inflammatory exudates, etc.
4. Causes of the disease
The causes of this disease are relatively complex. Since the disease has only become more common since 2014, and the incidence has become higher and higher since the second half of 2014, the range of the disease has gradually expanded and has spread to many areas. The losses caused to farmers are also increasing, so it has attracted gradual attention from the industry. The causes of the disease are mainly concentrated in the following aspects:
(1) Caused by allergy to a certain drug. It is related to the short-term use of large amounts of fluorine-containing antibiotics (norfloxacin, florfenicol), dysentery, and quinolones.
(2) Fluoride in drinking water or feed exceeds the standard. The main disease areas are saline-alkali areas and hilly areas.
(3) Lack of trace elements such as manganese or high fluoride can cause metabolic diseases.
(4) Mycotoxin (mycotoxin, aflatoxin, etc.) poisoning caused by feed or housing environment.
(5) Caused by metabolic diseases caused by deficiencies of multiple nutrients and secondary mixed infections with bacterial or viral diseases.
(6) Because the clinical symptoms are similar to those of photosensitivity but different from those of photosensitivity, it is judged to be photoallergic syndrome.
(7) Comprehensive metabolic diseases caused by lack of trace elements such as manganese, vitamins such as niacin, choline, B vitamins, and amino acids.
(8) Breeding duck problem. Due to the chaos of duck breeding in my country, there is no real meat duck breeding system. Many duck farms use commercial ducks as breeding ducks, resulting in breed degradation and genetic defects. disease.
(9) How much light intensity causes abnormal beak growth and development.
(10) Feeds that use rapeseed cake, cottonseed cake, etc. as protein feed raw materials contain toxins.
According to the author's investigation, the feed currently fed to free-range ducks basically does not contain soybean meal feed raw materials, and basically uses rapeseed cake, cottonseed cake and other miscellaneous meal protein feeds as raw materials. Rapeseed cake contains direct or indirect toxins, such as thioglucoside and its degradation products, sinapine, erucic acid, tannin, phytic acid, etc.; cottonseed cake contains free gossypol, etc. If these toxin-containing feed raw materials Incomplete detoxification will not only affect the growth of ducks, but also affect the metabolism and absorption of other nutrients. For example, tannin can interfere with the digestion and utilization of protein and inhibit animal growth. The phytic acid in rapeseed cake is a strong metal chelate. The mixture can chelate with calcium, phosphorus, magnesium, zinc and other metal ions, making it difficult for animals to use. The toxic effects of phytic acid on animals are mainly manifested in zinc and phosphorus deficiencies, such as anorexia, weight loss, slow growth, etc. , when the amount of rapeseed cake in the diet is high, it is appropriate to increase the amount of trace elements such as Zn, Fe, manganese, etc. Another example is that the free gossypol contained in cottonseed cake can destroy vitamins and affect the absorption and utilization of mineral elements such as calcium, phosphorus, manganese, etc., which can easily cause chronic nutritional deficiencies.
5. Preventive measures
According to the possible causes of the disease compiled and studied above, once the disease shows symptoms, clinical treatment is of little significance, so the disease is usually serious. prevention.
(1) Choose a regular supplier of high-quality duck seedlings.
(2) Strengthen feeding management, provide high-quality, full-price feed, and do a good job in environmental sanitation and disinfection.
(3) To prevent feed mildew, add demycin to the feed to provide high-quality and clean drinking water.
(4) The raw materials of rapeseed cake and cottonseed cake should be completely detoxified or should be adjusted as much as possible into full-price compound feed composed of protein feed raw materials mainly composed of soybean meal.
(5) When using preventive medicine, try to choose products from regular professional duck and goose medicine R&D and production companies, and use the product in accordance with the guidance and recommended dosage of the veterinarian or manufacturer.
The physiological functions and pharmacological mechanisms of ducks and geese are very different from those of chickens. Non-professional waterfowl pharmaceutical companies produce medicines for chickens. Often, chicken medicines either do not work or are harmful to ducks and geese. Causes a lot of damage!
6. Treatment measures
(1) Change the feed variety or add high-quality multivitamins, mineral elements and complex amino acids to the feed.
(2) Choose to use the special prevention and treatment combination program developed and produced by Henan Narisen Biopharmaceuticals:
Prevention:
①During brooding: use serous film Kang or duckling treasure + duck vitamin + duck goose beak and tongue health (500g per bag mixed with water or 500kg of mix) + duck food supplement (1000ml per bottle mixed with 5000kg of water) for drinking water.
②At 7-14 days of age: Duck Yongshikang (1000ml per bottle mixed with 5000 catties of water) + Duck Goose Beak Tongue Kang (500g per bag mixed with water or 500kg of ingredients) + deep sea cod liver oil drinking water Or mix with ingredients and use for 3-5 days.
③At 20-30 days of age: Duck Yongshikang (1000ml per bottle mixed with 5000 catties of water) + Duck and Goose Beak Tongue Kang (500g per bag mixed with water or 500kg of ingredients) + deep sea cod liver oil drinking water Or mix with ingredients and use for 3-5 days. In addition, adding demycin or mycotoxin to the feed can quickly remove it to prevent feed mildew.
Treatment:
If any group is found to have low energy, anorexia, weight loss, unsteady standing, slow growth and protruding tongue, immediately adopt:
For ducks Zengshikang (1000ml per bottle mixed with 5000 catties of water) + Duck Goose Beak Tongue Kang (500g per bag mixed with water or 500kg of ingredients) + deep sea cod liver oil with drinking water or ingredients. Use it for 3-5 days for treatment. The effect is very good. The general cure rate is above 90%. Severe cases should be eliminated as soon as possible. The most important thing is to prevent the disease.
7. Summary
Duck and goose tongue disease is developed by Henan Naresen Biopharmaceutical Co., Ltd., in collaboration with well-known experts and professors from the Chinese Academy of Sciences, China Agricultural University, etc. The special prevention and treatment products for tongue disease in ducks and geese have been developed and launched based on the causes and characteristics of the disease, and are specialized in the prevention and treatment of tongue disease in ducks and geese. This product contains a variety of top-secret Chinese and Western medicine ingredients. Due to many imitations in the industry, some ingredients are difficult to disclose here. Each bag of this product contains 500g mixed with 1000kg of water. Drink it within 4 hours. Each course of treatment lasts for 3-5 days. In severe cases, the dosage can be increased appropriately. Generally, the effect will be visible on the third day of use. The effect will be obvious after three days. It can be used with ducks in clinical prevention and treatment. When Zengshikang is used together with deep-sea cod liver oil, ducks in the early stages of the disease will generally recover in about 10 days. Clinically proven, the effect is amazing!
However, no product is a panacea. Those with late onset and severe symptoms should be eliminated as early as possible. The most important thing is prevention.
Waterfowl Division of Henan Narisen Biopharmaceutical Co., Ltd.