CATDOLL : CATDOLL: What are the key points for preventing fish diseases during hot seasons?

1. What are the key points for preventing fish diseases in hot seasons?

1. Water quality control: For high-yield ponds that use pellet feed for intensive breeding, there is a lot of organic matter deposited in the aquaculture water. In aquaculture management, the theory of fertilizing water to raise fish must not be used to control water quality. Instead, quicklime should be used to clean the pond every year, and organic manure should not be used or used less. In the case of high water temperature in summer, such as sudden changes in water quality, algae death, and increased water transparency, nitrogen fertilizer must not be used to fertilize the water. Instead, appropriate use of bottom improvement drugs and a small amount of calcium dihydrogen phosphate should be used, combined with water changes and more aerators.

2. Fish disease prevention and control: In the case of continuous high temperatures in summer, the stratification of aquaculture water bodies is particularly serious, the convection between the upper and lower layers of the water body stops, the lower water body is in anoxic state, various harmful substances decomposed by anoxic are produced in large quantities, and the content of nitrite or ammonia nitrogen is high, which is prone to various fish diseases. Therefore, environmentally friendly bottom improvement drugs and oxygen-enhancing drugs should be used to adjust the water quality. Aerators should be turned on during the day. Even if fish diseases break out, water adjustment and oral drugs must be used for treatment. In the high temperature season, large-scale medication should not be used to prevent and control fish diseases to prevent sudden changes in water quality and aggravation of the disease. The cause of the disease should be found out. When feeding fish, an appropriate amount of drugs should be dissolved in water and sprinkled near the feed table to form a "medicine bath" environment. It is better to take oral administration as the main method, supplemented by disinfection of the feeding area, and combined with water adjustment.

3. Stocking density: Stocking density should be scientific and reasonable, so that the self-purification capacity of the pond and the amount of organic pollution are basically balanced. On the one hand, fish species should be stocked according to the planned output, and the output setting should be based on the pond conditions, supporting facilities and technical level.

4. Feed: During the entire breeding process, high-quality feed should be selected to increase the fish's own resistance, reduce fish excrement, and promote the healthy growth of fish. High-quality feed with moderate protein, good amino acid balance, and excellent processing technology should be selected, and the feeding amount should be controlled so that the fish can eat until 80% full on a daily basis. When fish diseases occur, one is to feed medicated bait, and the other is to reduce the feeding amount to 60%.

2. What is the hot season?

The World Meteorological Organization recommends that the standard for a heat wave is: the maximum daily temperature is higher than 32°C and lasts for more than 3 days. In Chinese meteorology, high temperatures are generally defined as a maximum daily temperature of 35°C or higher. High temperatures can make people feel uncomfortable, reduce work efficiency, and increase the incidence of heat stroke, intestinal diseases, and cardiovascular and cerebrovascular diseases. At the same time, high temperatures can also have a significant impact on agricultural production. If the temperature exceeds 35 degrees for several consecutive days, it is considered a high temperature season, which is generally in July, August, and September.

3. Is it the season for stupid chickens to lay eggs?

Stupid chickens lay eggs in spring and summer. One egg every other day. If some calcium powder is added to the chicken feed, the eggshell will be hard without calcium deficiency. The yolk will be orange-yellow. Such eggs taste especially good. If the nutrition is sufficient, the egg-laying time can be extended by 1 to 2 months. If hormones are added to the chicken feed, the eggshell will be soft and thin. Such eggs will not taste good.

4. In what season do roosters crow?

The crowing of roosters is not seasonal. Generally, roosters crow because they see the light and make the sound naturally. Normally, the body's natural reaction occurs when it is just about to get light.

Because of the time differences between different places, it is difficult to be sure.

And now the environment has a great impact, and the crowing of roosters is not very regular. Some roosters basically crow at any time, in the morning, midnight, and noon, and you can hear the crowing sound.

5. What is the planting season for Cistanche deserticola?

Cistanche deserticola is sown in spring or autumn. In the second year, some seedbeds are parasitic on Cistanche deserticola. A few emerge from the soil and grow, but most emerge and bear fruit within 2-4 years after sowing. In April and early May, the newly unearthed succulent plants are harvested, and the small ones are kept and the large ones are harvested.

6. Which season has the highest temperature in the whole year?

Great Heat is the hottest solar term. After the summer solstice, the sun shines directly on the Tropic of Cancer. The sunshine time and the ecliptic longitude both reach their highest points. The surface temperature caused by the auxiliary radiation is much higher than the underground normal temperature of 4C (four degrees Celsius) from the surface to the inside at a depth of tens of centimeters. This prevents the temperature from integrating outwards. The period around Great Heat is also the period when subtropical high pressure is easily formed, which causes long-term high temperature accumulation in many places. After the plum rain season, there is little continuous rain except for the influence of typhoons. All these make the area north of the equator the hottest period.

7. What is the hot season?

The World Meteorological Organization recommends that the standard for a heat wave is: the maximum daily temperature is higher than 32°C and lasts for more than 3 days. In Chinese meteorology, high temperatures are generally defined as a maximum daily temperature of 35°C or higher. High temperatures can make people feel uncomfortable, reduce work efficiency, and increase the incidence of heat stroke, intestinal diseases, and cardiovascular and cerebrovascular diseases. At the same time, high temperatures can also have a significant impact on agricultural production. If the temperature exceeds 35 degrees for several consecutive days, it is considered a high temperature season, which is generally in July, August, and September.

8. Are you specialized in chicken diseases?

I think chicken disease is professional. Because chicken disease is a professional field. So it is professional

9. What diseases are chickens prone to?

1. Bacterial diarrhea The weather is cold and hot, resulting in poor intestinal conditioning, a large number of pathogenic microorganisms proliferate, and diarrhea. The chickens are in good spirits, but grow slowly, with pale combs. Some chickens have white strips or mucous feces, which contain undigested feed and are slightly yellow in color. Some chickens are depressed, shrink their heads, tremble, run around, scream easily, and then become paralyzed. The incidence rate of chickens is about 1%. Prevention and control measures: (1) Isolate sick chickens, eliminate residual chickens, remove litter, and completely disinfect. (2) Pay attention to both heat preservation and ventilation. (3) Suggest a medication plan and use microecological preparations to restore intestinal function. Strengthen the feeding and management of the chickens to keep the chickens strong and do a good job of epidemic prevention and disinfection. (4) Drug prevention: Commonly used drugs include penicillin, chlortetracycline, norfloxacin, tetracycline, oxytetracycline, streptomycin, etc., which have effective effects. The drugs can be mixed with water, mixed with feed, and administered to each chicken. For sick chickens that refuse to eat or drink, injection should be used (50,000 to 100,000 units of penicillin per chicken, twice a day, for 2 to 3 consecutive days). (5) Immunization: If the disease is not prevalent in the chicken farm, vaccination with bacteria is generally not necessary. In prevalent areas, vaccination with bacteria has a certain effect.

2. Fowl pox is caused by fowl pox virus. When fowl pox occurs in laying hens, the egg production rate decreases. The chickens' appetite, spirit and feces are basically normal. Skin-type fowl pox has characteristic papule-like nodules on the comb and wattles, which generally do not cause death; mucosal-type fowl pox has yellow-white cheesy pseudomembranes attached to the mouth and throat, and there is a "crackling" sound when breathing. During autopsy, local pox can be seen in skin-type fowl pox; in addition to the yellow-white pseudomembranes in the mouth and throat, mucosal-type fowl pox can also be seen in the tracheal mucosa. There are no lesions in other internal organs. Prevention and control measures: (1) The most reliable way to prevent fowl pox is to vaccinate with fowl pox vaccine. (2) Keep the chicken house clean, dry, ventilated and light-permeable, and disinfect it regularly. In particular, mosquito prevention and control should be done well. (3) Antibiotics are used to treat fowl pox to prevent secondary infection. The scabs on the skin are generally not treated.

3. Chicken leukocytosis is a disease caused by leukocytosis invading the tissue cells of blood and internal organs. Sick chickens are depressed, stand with eyes closed, have diarrhea, and have a reduced or no appetite; their feces are green and often bloody; they are anemic, emaciated, have pale crowns, and grow slowly; most sick chickens suddenly cough up blood and have difficulty breathing before death; the egg production rate of laying hens drops sharply. During autopsy, it can be seen that the chicken's crown and wattles are pale, the meat color becomes lighter, and there is extensive subcutaneous bleeding all over the body; the liver is enlarged and earthy yellow, with yellow-white nodules as large as millet grains to soybeans; the kidneys are swollen and bleeding, and there are a lot of blood clots on their surface; the spleen has bleeding spots; the pancreas, gizzard, and abdominal fat of some chickens have bleeding spots; the lungs are bleeding, and there are blood clots in the trachea and bronchi.

4. Infectious rhinitis in chickens Infectious rhinitis in chickens is characterized by inflammation of the nasal cavity and sinuses, sneezing and facial swelling. The more obvious symptoms are facial swelling, serous and mucous secretions in the nasal cavity and sinuses, conjunctivitis, swelling of the tissue around one eye socket, severe blindness, obvious edema of the wattles, and difficulty breathing when the inflammation of the upper respiratory tract spreads to the trachea and lungs. Prevention and control measures: (1) Vaccination. (2) Feeding management: Strengthen feeding management, improve ventilation conditions in chicken houses, reduce ammonia content in the environment, implement a full-in and full-out feeding system, completely disinfect the house after emptying it, and wait for a period of time before introducing new chickens, and do a good job of veterinary hygiene and disinfection inside and outside the chicken house. (3) Choose sulfonamide drugs to treat this disease. Chinese herbal medicine: 100 grams each of Angelica dahurica, Saposhnikovia divaricata, Leonurus japonicus, Prunus mume, Polyporus umbellatus, Terminalia chebula, and Alisma orientalis, 80 grams each of Cyperus rotundus, Platycodon grandiflorum, Scutellaria baicalensis, Pinellia ternata, Ginger, Leonurus japonicus, and Licorice. Crush and sieve, mix well, and it is the dosage for 100 chickens for 3 days, that is, an average of 42 grams per chicken per day. Mix with feed and feed for 9 consecutive days.

10. 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.