Chicken sulfonamides poisoning
Among the sulfonamides, especially those that are easily absorbed in the intestinal tract, such as sulfadiazine (S day), sulfamethazine (SM2), sulfamethoxazine (SMM), sulfaquine (SQ) and sulfamethoxypyridazine (SMP), their therapeutic dose is close to that of poisoning. In the prevention and treatment of parasitic parasitic diseases in poultry, sufficient doses and continuous use of drugs must be used in order to be effective, otherwise protozoa are prone to drug resistance. Therefore, large dosage or long duration, uneven mixing in the added feed and other factors may cause poisoning.
(1) etiology
The use of ① sulfonamides is repeated, resulting in repeated addition.
Due to the careless operation of ②, the amount of additives is too large, or the mixing is not uniform, and the medication time is too long.
After the use of sulfonamides, ③ did not provide adequate drinking water.
(2) characteristics of the disease
① diseased chickens have systemic hemorrhagic changes. The diseased chickens showed depression, anorexia, increased thirst, diarrhea and pale crown. Sometimes the head is swollen blue-purple, which is caused by local bleeding. Prolonged clotting time, granular leukopenia and hemolytic anemia. Some have spasms, paralysis and other symptoms.
The egg production of ② adult diseased hens decreased significantly, the eggshell became thinner and rough, the brown eggshell faded, or laid soft eggs. Some have polyneuritis. After autopsy, the kidney, liver and spleen were all enlarged.
When the content of sulfonamides in ③ muscle, kidney or liver exceeds 20 mg / kg, it can be diagnosed as sulfa poisoning.
(3) Prevention and control measures
The prevention and treatment of ① should give priority to prevention. Select sulfonamides with low toxicity, control the dosage, administration route and course of treatment, and pay attention to increase and ensure the supply of adequate drinking water.
If poisoning occurs in ②, you should immediately stop taking medicine, drink 5% glucose water or 0.5%-1% sodium bicarbonate water, and add 0.5 mg of vitamin K per kilogram of feed or double the vitamin content in the diet; severely poisoned chickens can also be intramuscularly injected with vitamin B121 ~ 2 micrograms or folic acid 50 micrograms 100 micrograms.
Adding appropriate amount of vitamin c to ③ feed can promote the recovery of diseased chickens.
- Prev
Do not feed rice soup to cattle and sheep after delivery.
A farmer fed rice soup to the cow after giving birth, which caused rumen acidosis. Fortunately, the veterinarian treated the cow in time without causing any loss. According to the veterinarian, livestock are weak after delivery, so they can feed an appropriate amount of rice soup to replenish nutrition, strengthen muscles and bones, and make cattle and sheep produce more milk. But ruminant cattle and sheep are not, postpartum drinking rice soup is easy to cause rumen acidosis. After the onset of the disease in cattle and sheep, sodium bicarbonate (60g / 100g in cattle, 15g / 30g in sheep) and ginger tincture (80ml / 100ml in cattle) can be used in mild cases.
- Next
The main coat color types of pigs
There are many types of pig coat color, mainly due to the different types and distribution of melanin. There are two kinds of melanin, one is true melanin (eumelanin), which exists in black and brown forms, and the other is brown melanin, which exists in yellow and red forms. Melanin is a binding protein, which is contained in all kinds of pigs, but the quantity and distribution are different, such as 0.07% in white Yorkshire pig coat and 6.18% in black pig. The main type of coat color of pigs
Related
- On the eggshell is a badge full of pride. British Poultry Egg Market and Consumer observation
- British study: 72% of Britons are willing to buy native eggs raised by insects
- Guidelines for friendly egg production revised the increase of space in chicken sheds can not be forced to change feathers and lay eggs.
- Risk of delay in customs clearance Australia suspends lobster exports to China
- Pig semen-the Vector of virus Transmission (4)
- Pig semen-the Vector of virus Transmission (3)
- Five common causes of difficult control of classical swine fever in clinic and their countermeasures
- Foot-and-mouth disease is the most effective way to prevent it!
- PED is the number one killer of piglets and has to be guarded against in autumn and winter.
- What is "yellow fat pig"? Have you ever heard the pig collector talk about "yellow fat pig"?