Table 1.

Composition of four experimental diets fed to B. minax adults (values in µg ml⁻¹ of double-distilled water). The yeast extract used is from Beijing Shuangxuan microbial culture medium product factory, Beijing, China.

	sucrose	sucrose + antibiotics	full diet	full diet + antibiotics
sucrose	200 000	200 000	200 000	200 000
yeast extract			40 000	40 000
trypton			60 000	60 000
antibiotics
gentamicin		10		10
piperacillin		200		200