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Winter squid enteritis prevention strategy
专栏:英文
发布日期:2014-11-08
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In winter, the water temperature drops, the changes of beneficial bacteria in the water, and the change of dissolved oxygen in the water cause adverse effects on the survival of the carp, wh..........
  In winter, the water temperature drops, the changes of beneficial bacteria in the water, and the change of dissolved oxygen in the water cause adverse effects on the survival of the carp, which causes the carp to decline in physical fitness, and the immune function declines, eventually causing enteritis, and attention should be paid to prevention and treatment.

  Entering the winter, the temperature difference between day and night is large. Some markets are eager to sell squid, often ignoring changes in the farming environment, including: water temperature decline, changes in beneficial bacteria in the water, changes in dissolved oxygen in the water, and so on. These environmental changes have adversely affected the survival of the carp, resulting in a decline in the body structure of the squid, a decline in immune function, and ultimately a bowel disease. The main symptoms are: anal swelling, and most of the disease has a large amount of ascites in the abdomen. Some of the squid's spleen is swollen and brown, with water floating on the surface and white sputum in the water. The specific causes and treatment methods are as follows:

  First, the intestinal inflammation caused by temperature changes

  Some markets are eager to grow up in squid, desperately feeding, regardless of changes in the natural environment outside, when the cold air suddenly comes, the water temperature drops sharply, the temperature difference between day and night becomes larger, which leads to indigestion of the carp and causing enteritis. The main symptoms are: intestinal congestion, floating surface and pulling white sputum. The specific processing method is as follows:

1, external consumption

  Chlorine dioxide 0.5-0.8 mg / liter is disinfected every two days.

2, oral administration

  Help digestive drugs and 5 grams per kilogram of salt, 5 grams of heart-to-heart, 5 grams of medicinal grass (through the heart of the heart, the grass is boiled after the soup mix).

  Second, the intestinal inflammation caused by water quality deterioration

  As the squid increases and the amount of feed increases, the squid's excrement also increases continuously, and the amount of water changes remains on the basis of the original. Some fields are lack of water, even less than the original ones, resulting in The organic matter in the pool is constantly accumulating.

  These organic substances rot and ferment in the pool, producing various harmful substances, resulting in excessive water quality index in the pool, such as high ammonia nitrogen, nitrite, especially high nitrous acid, not only toxic, but also toxic side effects on carp. Moreover, it takes a large amount of oxygen to be reduced to nitrate in the redox reaction. In addition, the large amount of plankton in the water (such as: chironomid larvae, cup worms, etc.) often causes the dissolved oxygen in the pool to decrease, and some dissolved oxygen in the field water is even as low as 3 mg / liter. This is easy to cause indigestion of the carp. The main symptoms are as follows: the squid swims weakly, is scattered, and the mucus on the surface is zebra-like; the squid are concentrated before and after the aerator and the water is added; the food intake of the carp is significantly reduced, and some hunger strikes. The processing method is as follows:

  1. Stop eating 2-3 meals.

  2, the use of degradable nitrous acid to degrade nitrous acid (such as: nitrous oxide fast 1-1.5 mg / liter, Yake net 1-1.5 mg / liter) to adjust the water quality.

  3. Kill plankton with potassium permanganate 3 mg / liter + 90% crystal trichlorfon 0.3-0.6 mg / liter, and increase dissolved oxygen in water.

  4. After the recovery of the carp's physique, it is necessary to feed from the low feed amount and gradually increase the amount of feed.

  5, oral administration: 8 tablets of rhubarb soda tablets + 5 grams of berberine hydrochloride + malt   5 grams + 8 tablets of anti-inflammatory and gallbladder tablets (the malt should be boiled after the soup mix).

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