CATDOLL : CATDOLL: How to determine liver disease in chickens?

1. How to determine liver disease in chickens?

There are different manifestations of liver lesions, which generally have the following characteristics: First, there are local necrotic foci on the surface of the liver. Focal hepatocyte necrosis, focal tumor cell infiltration or foreign body deposition cause yellow-white or gray-white necrotic foci on the surface of the liver. The liver of fowl cholera is brittle and fragile, with many gray-white necrotic foci ranging from pinpoints to the size of corn under the capsule and on the cut surface. Microscopic examination: Multiple small necrotic foci can be seen in the liver, and characteristic cholera bacteria can be seen in the foci. In chicken white diarrhea, white or gray-white pinpoint-sized nodules are distributed throughout the liver parenchyma. In addition, the liver is enlarged, brick-red, and has bleeding spots. In chicken blackhead disease, there are chrysanthemum-shaped and reticular necrotic foci on the surface of the liver, and the center of the ulcer foci is yellow or gray-green. Red round worm bodies can be seen under the microscope. The liver of chicken tuberculosis is brittle, often brown-red, and there are gray-white or yellow-white nodules of varying sizes in the liver parenchyma. When multiple lesions merge, they become cauliflower-like hard nodules. Microscopic examination: This disease is characterized by tuberculous nodules, with caseous necrosis in the center of the tuberculous nodules, which are generally not calcified. Marek's disease and lymphocytic leukemia have gray-white tumor nodules of varying sizes on the surface of the liver. The visual changes of the liver of the two are very similar, and comprehensive diagnosis is required for differentiation. The color of the chicken aflatoxin liver becomes pale and light, and there are yellow nodules the size of rice grains on the surface. Urate deposition disease is caused by a large amount of urate deposition in the body due to renal dysfunction caused by various reasons. There are lime-like urate deposits on the surface of the liver of sick chickens, and urate deposition lesions can also be seen in other organs and tissues. Needle-like urate crystals can be seen under microscopic examination. Second, the liver capsule is thickened, and exudates are attached to the capsule. This phenomenon is caused by liver peritonitis and cellulose exudation on the surface of the liver. It is more common in Escherichia coli disease, blackhead disease and ascites. The main lesions of Escherichia coli disease are thickening of the liver capsule, necrotic foci in the liver, and pericarditis and peritonitis.

2. How to identify chicken diseases by looking at chicken manure?

Normal chicken manure is in strips, with a layer of white urate on the surface, and moderate hardness. Its color may vary depending on the type of feed, mostly gray-green or sauce-yellow. If it is too hard or too thin, it is caused by insufficient or excessive drinking water. But if it is too soft, it is because there is too much bran and wheat in the feed. If the chicken manure is abnormal in quality, quantity, shape and color, it may be caused by disease.

There are several types of abnormal chicken feces: Flesh-red feces: The shape is like rotten meat, which is formed by the shedding of intestinal mucosa. It is more common in chickens suffering from coccidiosis, tapeworm disease, ascariasis and in the recovery period of enteritis. Bloody feces: The feces are black or dark brown, which is common in upper gastrointestinal bleeding; the feces are red or bright red, which is more common in lower gastrointestinal bleeding. Yellow sulfur feces: The surface of the feces is covered with a layer of yellow or light yellow urine.

That is because the liver lobule is damaged, which affects the excretion of bile, causing bilirubin to enter the blood and be excreted through urine. It is more common in appendicitis and hepatitis. Green sticky and foul-smelling feces: The feces are dark green, which is caused by the mixture of bile and intestinal shed tissue cells. It is more common in fowl cholera, Newcastle disease, laryngotracheitis, etc. Thin feces: The chicken digests normally, but the feces contain a lot of water and are not formed. It is mostly caused by a sudden increase in water intake during hot weather, too much salt in the feed, mild infection of E. coli, and slightly toxic substances in the feed.

Rusty watery stool: Rusty watery stool mixed with urate, and sometimes mixed with incompletely digested feed. This is caused by severe intestinal bleeding. It is often seen in diseases that cause gastrointestinal bleeding, such as early Newcastle disease poisoning. Milky stool: Milky white, watery, like milk poured on the ground, often seen in mucosal congestion and mild enteritis. White watery stool: Sticky, often sticky to the chicken's anus, often seen in pullorum.

White watery stool: The stool is watery and mixed with white urate particles. It is more common in chickens with no appetite, paralysis and uremia. This is caused by the absence of food in the digestive tract and the stool is urate.

3. What does liver space-occupying lesion mean?

If there is a space-occupying lesion in the liver, then from a clinical perspective, it can be considered that a tumor may have occurred. Basically, the space-occupying lesion in the liver is first detected by imaging B-ultrasound, and then enhanced CT scanning or tumor marker detection and alpha-fetoprotein comprehensive analysis are performed to accurately determine the specific cause.

4. Is diffuse liver lesions liver cancer?

Diffuse liver lesions are not necessarily liver cancer. Diffuse liver disease refers to the manifestation of liver tissue lesions in imaging examinations. Be careful to exclude chronic viral hepatitis, organic liver diseases and other diseases. It is recommended that patients go to the hospital for systematic examinations and check liver function and hepatitis B indicators. Choose the appropriate treatment method based on the examination results and the patient's specific situation.

5. What disease is caused by reduced liver volume?

The reduction in liver volume is caused by the disease itself or external factors such as surgery. The disease itself, such as liver stones, causes liver atrophy in the late stage of cirrhosis. It needs to be treated with different causes. Hepatitis requires antiviral and liver protection treatment. Liver atrophy and liver fibrosis caused by liver stones require liver resection. The reduction in liver volume caused by various diseases, such as obvious abnormal liver reserve function and small liver syndrome, should be treated with liver transplantation. The reduction in liver volume after liver resection is normal and does not require any intervention, and can be compensated in the late stage.

6. What are the pathological characteristics of ringworm disease?

In recent weather, there are two situations where spots appear on the combs of chickens. One is chicken pox. In such a chicken comb, there are yellow spots first, which gradually turn black, scab and fall off. Chicken pox is mainly caused by mosquito bites and cross-infection. Chicken pox needs to be vaccinated in time. The other is crown ringworm. Such crown ringworm usually appears in patches. High temperature and high humidity, mold breeding, will cause such a situation. It can be treated with fungus cleaner. Your situation is more likely to be chicken pox.

7. What is interstitial lung disease?

Hello, according to your analysis, interstitial lesions of lung tissue, such as this disease, we generally call it interstitial lung disease, which is mainly caused by viral infection. I suggest you go to the hospital to take some anti-inflammatory and cough and expectorant drugs for treatment. Pay attention to weather changes and put on more clothes in time to prevent colds. Maintain a regular life, combine work and rest, get enough rest, and maintain good sleep.

8. What is the disease caused by low-density liver shadow?

Low-density images in the liver are seen in many diseases, the most common of which is hemangioma. Congenital ones are caused by bile duct dilatation, while acquired ones include trauma, inflammation, infection, and parasites. Others are malignant lesions that occur in the liver, including primary liver cancer and metastatic liver cancer.

9. What disease does the yellow liver of ducks cause?

It would be best to send me an anatomical picture. The yellow color of the liver may be caused by duck viral hepatitis. Please tell me the details of the condition and I will diagnose it for you.

10. Why do chickens become thinner and thinner, and their livers become enlarged and they die of exhaustion. What disease is this?

If chickens become thinner and thinner, it means that they are malnourished or have a large number of parasites in their bodies.

1. The feed intake cannot meet the needs of chicken activity and production, resulting in weight loss, so the chicken will become thinner and thinner;

2. The parasites in the chicken consume a lot of nutrients and cause some of the chicken's organs to lose function or become weaker, making the chicken lose weight. In view of the above two situations, it is necessary to strengthen feeding management, deworming and stomach strengthening, and the chicken will gradually get better.