No one manufacturer of feed is any better or worse than any other.
I feed Manna gro to my rabbits, and they do very well on it, its $15.00 per bag
I fed Local Agway Brand years before and they again did very well on that feed at $11.00 per bag.
Fact of grains are :
All grains/ feed are processed in the same plants.
You can have Purina, Manna Gro, Dumor, Agway,BlueSeal, Pen Pals etc et all coming from the same mill.
the trick comes in when they switch from one brand of grain to another,ie: cracked corn to rabbit,then to chicken, then to turkey, you get the picture.
I have seen this repeatedly in many different brands of feed, light almost yellow pellets in with nice green pellets, ok some one didnt clean the machine after processing we will say turkey pellets. for sake of argument.
Purina, Mills for many different brands of local and top brand name feeds.
Each brand has its own formular and way of processing.
The only way to know which feed is milled by a different processor is to chech the bag, it will tell you exactly which plant processed that particular brand and which Co owns the plant.
Rabbit grain that is perfect for "Your" rabbit is the one they thrive on the best.
a suggestion would be chose a grain and stick with it.
feed changes make horrid complications for some rabbits.
Purina its self your paying for the name, Dumor (
TSC brand) is Purina under a different lable. same product same quality, same everything except different price.
Small World Rabbit Grain sold by most all
Walmart, most scoff at it being a cheap grain, not so its actually
Manna Pro, distributed by the
Manna Pro company.