The blue is from Harlan's own Nutritional Analysis.

PURINAŽ SOW & PIG BUILDER COMPLETE
FOR ALL CLASSES OF SWINE

GUARANTEED ANALYSIS

Crude Protein (Min) 16% - 18-19%

Lysine (Min) 0.60% - 0.92%

Crude Fat (Min) 3.0% - 6.0%

Crude Fiber (Max) 7.0% - 3.8%

Calcium (Ca) (Min) 0.60% - 1.0%

Calcium (Ca) (Max) 1.10% -1.0%

Phosphorus (P) (Min) 0.65% - 0.65%

Salt (NaCl) (Min) 0.25% - 0.23%

Salt (NaCl) (Max) 0.75% - 0.23%

Selenium (Se) (Min) 0.30 ppm - 200 ug/kg **not sure how the ppm measures up to ug/kg.

As to the ingredients themselves, I'd take concern over the roughage products and their being so close to the top. Not knowing what they are, I would be concerned that the rat's would not be able to digest the product, with them not having the easiest time of digesting whole fibers and plants, leading them to consume more to make up for it simply being a filler for them and passing right through.

I assume plant protein products to be extracts much like many manufacturers get from alfalfa. I am not sure about that one either if it would negatively impact them, but being close to the top of the list, it's something to think about.

I've highlighted red what harlan also carries in their product, but they are also not in the same order as Harlan's, which would make me wonder at the amounts in the product.

Ingredients:
Processed grain by-products, grain products, plant protein products, roughage products (not sure on the digestibility by rats), molasses products, calcium carbonate, animal protein products, salt, monocalcium phosphate, dicalcium phosphate, choline chloride, vitamin E supplement, vitamin B-12 supplement, calcium pantothenate, riboflavin supplement, niacin supplement, vitamin A supplement, zinc oxide, ferrous carbonate, manganous oxide, copper sulfate, ferrous sulfate, calcium iodate, selenium yeast, vitamin D3 supplement, sodium selenite.



If you're comfortable with feeding them this, then do it. I would personally pay close attention to the mothers physique, body mass and overall skin and health, as well as the litter sizes and weights of pups on weaning.

Wouldn't hurt to keep track of how much they eat too, just to know if they do eat more or not, which would shed some light into the major ingredients at the top of the lists like roughage and plant proteins.