| increases in urea synthesis and the ornithine-urea cycle capacity in the giant african snail, achatina fulica, during fasting or aestivation, or after the injection with ammonium chloride. | the objectives of this study are to determine whether a full complement of ornithine-urea cycle (ouc) enzymes is present in the hepatopancreas of the giant african snail achatina fulica, and to investigate whether the rate of urea synthesis and the ouc capacity can be up-regulated during 23 days of fasting or aestivation, or 24 hr post-injection with nh(4)cl (10 micromol g(-1) snail) into the foot muscle. a. fulica is ureotelic and a full complement of ouc enzymes, including carbamoyl phosphate ... | 2005 | 16254923 |