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To design a homologous bioassay for the molt-inhibiting hormone and the crustacean hyperglycemic hormone of the shrimpPenaeus vannamei,the effect of sinus gland homogenate (SGh),in vitro,on ecdysteroid production by Y-organs (YOs), and the effect of the injection of SGh,in vivo,on the glycemia of shrimps have been investigated. Addition of SGh to incubation medium of shrimp YOs dose dependantly reduced,...