Identification of Symptoms and Prevention and Control Techniques for Red Gill Disease in Giant Freshwater Prawn (Macrobrachium rosenbergii)

  Red Gill Disease

  Also known as gill rot disease, it is mainly caused by water pollution and mold infection. The gills of diseased prawns become swollen, appear red or yellow, and show signs of decay.

  Prevention and control methods for red gill disease and black gill disease

(1) Spray the entire pond with Yuxianing at 0.3 ppm.
(2) Spray the entire pond with Kejunwang at 0.5 ppm for 3 consecutive days.
(3) Spray the entire pond with Kebang Baijunsha at 0.5 ppm for 3 consecutive days, and apply Kejunwei at 0.5 ppm for 3 consecutive days.
(4) Add 2 grams of chloramphenicol or 3 grams of oxytetracycline per kilogram of bait to make medicated bait and feed for 5—7 days.
(5) Mix 400 grams of Yu'eran per 100 kilograms of prawns into the feed, plus 300 grams of Yuxueling per 100 kilograms of prawns, and feed for 3—5 days.