I am not an expert on feeds, but this might make it easier on the folks that are. The Exotic Nutritions feed I found listed this as ingredients:
CHINCHILLA DIET WITH ROSE HIPS
EXOTIC NUTRITIONS CHINCHILLA DIET IS MADE FROM THE
FRESHEST 'ALL NATURAL' INGREDIENTS. IT WILL PROVIDE
YOUR CHINCHILLA WITH A TOTALLY BALANCED DIET AND
CONTAINS ALL THE NUTRIENTS ESSENTIAL FOR GROWTH,
MAINTAINCE , AND REPRODUCTION. IT IS USED BY SOME OF
THE TOP CHINCHILLA BREEDERS IN THE COUNTRY.
INGREDIENTS: TIMOTHY MEAL, ALFALFA MEAL, WHEAT MIDDS,
CORN MEAL, GROUND BARLEY, SOYBEAN MEAL, SOYHULLS,
MOLASSES, WHOLE ROSE HIPS, VITAMIN A SUPPLEMENT, VITAMIN D2,
VITAMIN E SUPPLEMENT, YUCCA SCHIDIGERA EXTRACT, CALCIUM
CARBONATE, CALCIUM PHOSPHATE, SULFUR, NIACIN, COPPER
SULFATE, VITAMIN B-12, RIBOFLAVIN, SELENIUM, ZINC, SALT.
GUARANTEED ANALYSIS: CRUDE PROTEIN (MIN) …16.0%
CRUDE FAT (MIN)…1.5% CRUDE FAT (MAX) 1.9% CRUDE
FIBER (MIN) 17% CRUDE FIBER (MAX) 20% MOISTURE (MAX)
8.9% ASH (MAX ) 3.5% SALT (NACA) (MAX) 1.0% SALT (NACL)
(MIN) 0.5% CALCIUM (CA ) (MIN) 0.6% CALCIUM (CA) (MAX)
1.1% PHOSPHORUS (P) (MIN) 0.4% VITAMIN A (MIN)..2,000
IU/LB.
DIRECTIONS: FEED APROX. 4 TO 6 OZ. PER FEEDING . ADJUST
TO MAINTAIN PROPER BODY WEIGHT. FEED BABIES AS MUCH
AS THEY WILL CONSUME.