Monosodium glutamate in the chick embryo: lack of obvious toxic or teratogenic effects when administered at 24 hours incubation.

The administration of monosodium glutamate (MSC) to chick embryos at 24 hours did neither produce gross developmental defects nor influence growth by 72 hours total incubation. The concentrations of MSG administered ranged from 0.3 to 46.6%, the volumes injected being 0.05, 0.1, or 0.2 ml. Several injection methods were evaluated. It is suggested that injection into the centre of the yolk is the most effective way to give water-soluble treatments during this period of development.