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(一)提高日本对虾自身免疫力和抗病力 (1)选择优质虾苗。选好优质健壮的虾苗是养虾防病的基础。选择虾体肥大、个体整齐、游动活泼、肝胰腺轮廓明显的健康虾苗,就有利于抵抗虾病的发生。(2)加强饵料生物的培养。在虾池中大力繁
(A) improve Japanese shrimp immunity and disease resistance (1) choose high-quality shrimp. Selection of good and strong shrimp is the basis for prevention and treatment of shrimp. Select shrimp body hypertrophy, tidy individuals, lively swimming, hepatopancreas clear outline of healthy shrimp, it is conducive to resist shrimp disease. (2) to strengthen the cultivation of food organisms. In the shrimp pond vigorously