Candida ingens as a potential fodder protein

Pig wastes were fermented and the supernatant was inoculated at the surface with Candida ingens which grew as a pellicle. This was harvested, dried and incorporated with wheat into 2 rations of 20% and 17.9% crude protein as were 2 similar rations using casein and wheat. Using rats the rations were compared for 43 d. There was no significant difference in weight gain or feed conversion between the yeast and casein fed rats at 20% crude protein nor was there a difference in weight gain at 17.9% crude protein; there was a significant difference in feed conversion at 17.9% crude protein (P less than .05). Rats fed C. ingens showed no abnormality at autopsy.