CATDOLL : CATDOLL: How to accurately and quickly diagnose chicken diseases?

1. How to accurately and quickly diagnose chicken diseases?

For technicians in veterinary pharmaceutical companies, the most basic requirement for practitioners is to accurately and quickly diagnose chicken diseases and provide reasonable prevention and control measures.

Therefore, if we want to do this job well, if we want to gain a foothold in this industry and develop for a long time, we must master this skill proficiently, and our judgment of the disease must be very accurate, minimizing the error as much as possible.

So, how can we accurately and quickly diagnose chicken diseases? What are the techniques and issues to pay attention to in the process of diagnosing chicken diseases? In the nearly ten years of working in this field, the author has summarized some experiences and methods, and here is a statement: First of all, diagnosing chicken diseases cannot be separated from the guidance of theoretical knowledge.

For example, the pathogen, epidemiology, clinical symptoms, pathological changes, and laboratory diagnosis of a certain chicken disease.

We should keep this knowledge firmly in mind and memorize it thoroughly when we are in school.

In actual work, we must combine theory with practice and link them closely. Only with solid theoretical knowledge as a foundation can we achieve a higher degree of accuracy in our judgment of diseases.

Then, in the actual operation process, there are several steps to judge chicken diseases: 1. Observation. The content of observation includes: the mental state, neatness, uniformity, density of the flock, the environment in the chicken house, the integrity of the equipment, ventilation, temperature control, the freshness of the feed, changes in the flock's feces, the proportion of sick chickens, the various symptoms exhibited by sick chickens, etc.

2. Listen to the overall sounds of the flock, the various respiratory symptoms they exhibit, and how they differ from the sounds made by normal chickens.

3. Be sure to ask the farm owner or breeder about the age of the chickens, feed intake, water intake, egg production, length of illness, medication process, vaccination status, mortality rate, and some details in feeding and management.

4. Autopsy Autopsy is the most important link in the entire process of disease diagnosis. For many diseases, the final diagnosis can only be made through dissection.

Therefore, mastering anatomy and being able to accurately distinguish pathological changes are essential skills for every practitioner.

5. Thinking and Analysis After going through these necessary steps, we can have a preliminary judgment on the chicken disease, but to draw a conclusion still requires careful analysis and thinking.

This step is particularly important in the absence of laboratory diagnosis.

The analysis mainly includes: combining all the information seen, heard, asked, and obtained from the autopsy, linking it to the current epidemic situation in the region, excluding irrelevant items, integrating all corresponding items, and finally drawing conclusions.

Then come up with a treatment or management plan.

When judging and grasping chicken diseases, we must follow one principle: take it seriously and be careful and responsible.

Be careful to avoid the following types of mistakes: 1. Empiricism and blind judgment.

It often happens that some people simply look at the symptoms of the chickens and then arbitrarily draw conclusions, saying that they have a certain disease and use certain medicines. This practice is irresponsible and undesirable.

2. Rely only on theory and not connect with reality.

Some people often do this: after simply dissecting one or two chickens, they say that the chickens have some disease and will feed them some medicine.

This approach is also not advisable.

Sometimes one or two dead chickens cannot represent the entire flock, and blindly administering medicine will delay the treatment of the disease.

3. Do not distinguish between the important and the unimportant, and throw everything into one pot.

Sometimes chicken diseases are more complicated or there are too many mixed types, and some people cannot distinguish the main from the secondary. They give medicine to all the symptoms they see, and feed a large amount of medicine at a time. Not only will it not cure the disease, but it will also cause a burden to the chickens.

4. Unclear concepts and inappropriate handling methods.

Some people say that chickens have chronic breathing if they see that they have been breathing for a long time, or that they have white loose feces if they see that the chickens have white diarrhea. Such a rough judgment will lead to a large deviation in treatment and cause delays in the treatment of the disease.

5. Only studying pathology but failing to think comprehensively.

There are many problems that may occur in feeding management, the quality of feed, the characteristics of the breed, the influence of seasonal environment and other related factors. If you do not consider these issues and just blindly look for the cause of the problem, it is easy to get into a dead end.

In short, in the process of work, use your brain more, summarize more, practice basic skills well, and make judgments on chicken diseases carefully and patiently with a serious and responsible attitude towards work and customers.

It is of great benefit to work, customers and ourselves. Even without advanced experimental equipment, we can have a clear idea and become experts in the industry.

2. How to diagnose AIDS?

AIDS is mainly determined by clinical symptoms and laboratory tests. The symptoms are mainly to see whether there is unexplained fever, low resistance, repeated colds, whether there are swollen lymph nodes, including lymph nodes in the mandible, armpits, groin and other parts, whether there is a rash on the body for no reason, bleeding for no reason, the skin is more easily injured, and whether there is long-term diarrhea. Some serious complications may occur in the later stage, such as recurrent pneumoconiosis, oral candidiasis, etc. In general, when these symptoms appear, it is recommended to go to the hospital for a blood test for HIV antibodies. If it is positive, blood must be drawn again to check HIV nucleic acid, and these nucleic acids are all positive. Basically, AIDS can be confirmed.

3. How to determine the type of crystal based on the melting point?

It is unlikely to judge a crystal by its melting point. The melting point of CaF2, which is also an orthorhombic crystal system, is 1400°C, while the melting point of CsI is less than 700°C. The melting point is related to the bond energy, and the different bond lengths in different elements and different crystal systems, such as the relationship between graphite and diamond, result in very different melting points.

For example, the same metal bond, iron is solid at room temperature, while the metal bond of mercury is broken at room temperature. 1L's answer is to distinguish them according to ionic crystals and molecular crystals, which is a very reasonable point of view. However, this explanation is not very useful to lz.

4. How to determine whether chickens have roundworms?

Ascaris is rarely heard of, but nematodes are there.

Chicken gastric nematode disease is a parasitic disease caused by the small hooked nematode (Axe hooked nematode) parasitizing in the chicken's gizzard, with grasshoppers, locusts, weevils, beetles, etc. as intermediate hosts, the spiral nematode (Spiral nematode) parasitizing in the chicken's glandular stomach, with pillbugs as intermediate hosts, and the American nematode parasitizing in the stomach, esophagus and small intestine of birds.

Epidemiology

Life history: The life history of gastric nematodes begins when the chicken swallows an intermediate host containing infectious larvae. The larvae molt and develop into adults in the chicken. After mating, the male and female adults lay eggs that are excreted in the feces. The eggs are swallowed by the intermediate host, hatch in its body, and develop into infectious larvae.

Pathology

When infected by the spiral nematode, the lesions are mainly in the glandular stomach, which is manifested as congestion or bleeding in the glandular stomach. In severe cases, the mucosa forms cauliflower-like ulcers, the front end of the worm body is deeply buried in the ulcer, and the glandular papilla around the lesion becomes flat. When infected by the axe hook nematode, the lesions are mainly in the gizzard, which is manifested as hemorrhagic inflammation of the gizzard mucosa (the white part after tearing off the chicken gizzard). There are soft nodules containing parasites in the muscles of the gizzard. Severe infections cause gizzard damage and affect the function of the gizzard.

5. How to identify chicken coccidiosis and the key points of prevention of chicken coccidiosis?

Chicken coccidiosis is mostly caused by coccidia of the family Eimeria, among which caecal coccidia (Eimeria tenella) and small intestinal coccidia (Eimeria toxicophila) are more common. The following methods can be used to confirm chicken coccidiosis.

1. Is the chicken house damp? The oocysts of chicken coccidia will accelerate the infection and spread of chickens in a humid environment. Especially when it is rainy and the litter is damp, coccidiosis is often prone to break out. Therefore, to prevent coccidiosis, you must first keep the chicken house dry.

2. Is there blood in the litter? Both cecal coccidia and intestinal coccidia will cause blood in the stool. Generally, the blood in the cecal coccidia stool is bright red blood, and sometimes there will be traces of blood on the chicken's anus. The blood in the intestinal coccidia stool is dark red, sometimes maroon. Because coccidia can cause intestinal bleeding, chickens infected with coccidia will mostly be anemic, and the appearance is that the comb is white or yellow without blood. (Note that chicken coccidiosis and chicken necrotic enteritis should be distinguished)

3. Dissect infected chickens: To distinguish whether chicken coccidiosis is caused by cecal coccidiosis or intestinal coccidiosis, the most direct method is to dissect infected chickens. For cecal coccidiosis, the cecum is swollen and filled with blood or blood clots. For intestinal coccidiosis, the small intestine or duodenum is swollen and congested, with a large number of bleeding spots on the surface.

To prevent and treat chicken coccidiosis, first of all, keep the chicken house or litter dry. Secondly, you can use Dahua Nongyi Miejia to regularly disinfect the litter of the chicken house, and the chicken house can be disinfected with quicklime (especially after the chicken house is released on rainy days).

6. How to determine the type of citrus based on leaf shape?

I can tell you to download a flower identification software, use the scan function to scan the leaves, and it will tell you exactly what tree it is.

7. What are the types of chicken?

Chickens can be roughly divided into five categories: chickens for meat, chickens for eggs, chickens for both meat and eggs, chickens for both food and medicine, and fighting cocks for ornamental purposes.

If you break it down, there will be more

Red Chicken

Xianju Three Yellow Chicken

Zhengyang Three Yellow Chicken

Cenxi Three Yellow Chicken

Shenpu Ma Chicken

"Feng Zhong Huang" Qingyuan Chicken

Xugang Yellow Chicken

Suqin Yellow Chicken

Sea red yellow chicken

Jinghuang Chicken

Fresh Yangzhou Chicken

Southern Anhui Yellow Chicken

Guinea fowl

Nancheng Five Black Chicken with Both Meat and Medicine

Rich Chicken

Tianshan Snow Chicken

Silky Chicken

These are poultry.

And some more:

Kinmen Chicken Ishizaki Chicken

Huadong Chicken Nagoya Chicken

Silky chicken, etc.

8. What are the types of big-eyed chickens?

Big-eyed chicken is a common name. Its scientific name is big-eyed porgy, which is native to the South my country Sea. Big-eyed chicken has a long body and flat sides. Its skin is light red and rough with small thin scales. Because its eyes are like chicken eyes, people call it big-eyed chicken, and gradually forget its real name. Big-eyed chicken is a bottom fish, living in a low-light environment, so it needs a pair of particularly large eyes.

9. What types of feathers does a chicken have?

There are white feathers, red feathers, black feathers, red feathers, reed chicken

10. What are the types of butcher chickens?

, Three Yellow Chicken

The three-yellow chicken is named for its yellow feathers, beaks and feet. The three-yellow chicken has strong survival ability and high egg production. An adult chicken weighs about 3 to 4 kilograms. Its meat is tender, delicious and nutritious. It has a high reputation both at home and abroad and is one of the most famous native chicken breeds in my country.

2. Shouguang Chicken

Shouguang chicken originated in Daotian Township, Shouguang County, Shandong Province. The best chickens are raised in Cijia Village and Lunjia Village, so they are also called Cilun chicken. The chickens are characterized by their large size and large eggs. They are excellent local chicken breeds that can be used for both meat and eggs. Shouguang chicken is tender and nutritious. In the market, it is 2-3 times more expensive than ordinary chickens, making it a hot commodity in high-end hotels, restaurants, chicken shops and wedding banquets.

3. Qingyuan Ma Chicken

Qingyuan Silkie Chicken is the most common chicken breed in Guangdong chicken farms. It grows fast and fattens quickly, and is widely loved by large chicken farms in the south. Qingyuan Silkie Chicken is mainly raised in batches in enclosures by chicken farmers. It has a strong appetite, good disease resistance, delicious meat, and strong adaptability to cages, so it is also loved by the people in the south.

4. Royal Chicken

Guifei Chicken, also known as Noble Lady Chicken, wears a phoenix crown on its head, is covered with black and white feathers, and is naturally beautiful. It is an ornamental, delicious and nourishing dish. It has a strong gamey flavor, rich nutrition, tender meat, oily but not greasy, and delicious. It is rich in 17 kinds of amino acids needed by the human body, more than 10 trace elements and multiple vitamins, and is favored by many consumers.

5. Green-shell laying hens

Green-shell laying hens are a breed of chickens that lay eggs with green eggshells. Chickens that lay green eggs are rare, but green-shell laying hens are not the only type of chickens that can lay green eggs. Their characteristics are five blacks and one green, namely black hair, black skin, black meat, black bones, and black internal organs. What is even more peculiar is that the eggs they lay are green. They combine natural black food and green food into one, making them a rare and precious bird.

6. Gushi Chicken

Gushi chicken is a dual-purpose chicken breed for both egg and meat. It has a triangular body, plump feathers, a single upright comb, six comb teeth, a forked comb rear edge, a bright red comb, a waving comb, and earlobes. The eyes are large and bright, and the color of the feathers is short and greenish-yellow. The feathers of roosters are golden yellow, while the feathers of hens are mostly yellow or ephedra yellow. Gushi chicken has tender meat, delicious meat, and rich nutrition. The eggs are large, the egg white is thick, and the egg yolk is dark yellow.

7. Apricot Chicken

Xinghua Chicken is also known as "Mizai Chicken". Origin (or distribution): Produced in Fengkai County, Guangdong. Main characteristics: It is a small broiler chicken. Its body characteristics can be summarized as "two thin" (thin head and thin feet), "three yellow" and "three short" (short neck, short body and short feet). The chicks are mainly "three yellow" with pale yellow feathers all over their body.

8. Silky-bone chicken

Silky-bone chicken is a medicinal chicken breed, famous at home and abroad for its snow-white silky feathers, black skin, muscles, periosteum and unique medicinal value. It is also docile, not good at flying, strong adaptability, beautiful appearance and tender meat.

9. Tibetan Chicken

Tibetan chickens are small, long and low, boat-shaped, and aggressive. They have well-developed wing and tail feathers and are good at flying. The sickle feathers of roosters are 40-60 cm long. They are U-shaped, small, well-proportioned, compact, agile, and nervous. They hold their heads high and their tails up. They have well-developed wing and tail feathers and are good at flying. The sickle feathers of roosters are 40-60 cm long.