WildAgain Wildlife Rehabilitation, Inc.

Powdered milk replacer product tests
Fox Valley 20/50 Lot# 042721 (2012)

Click here for test results on other powdered milk replacer products


Proximate Analysis, Minerals and Calories (click here for Midwest Lab report )

The table below indicates the values for test results from Midwest Labs, plus calculated values for components in a formula mixed at a ratio of 1:2 with water using WildAgain's nutrition calculator. The Kcals are calculated using both the standard Atwater calculation as well as the modified Atwater as prescribed by AAFCO.

Component (dry powder) (Midwest Lab Report) Rehydrated @ 1:2 water


Moisture % 4.28 Solids % 17.7
Protein % 24.6 Protein % 4.5
Acid Hydrolysis Fat % 47.6 Fat % 8.8
Carbs (subtraction) % 13.78 Carbs % 2.5
Calcium % 1.85 Calcium % .34
Phosphorus % 1.08 Phosphorus % .20
Magnesium % .096 Ca/P Ratio 1.71
Sodium % .37 Kcals/cc (Atwater) 1.07
Potassium % .53 Kcals/cc (AAFCO) 1.00
Peroxide Value (what's this?) (Test not performed)    
Ave. dry wt grams (1 TBSP) 6.7    
Kcals/gram (Atwater) 5.82    
Kcals/gram (AAFCO) 5.39    
Cells shaded in light blue indicate values from tests performed by Midwest Labs, Omaha, NE.


Ingredients (what's this?)

The table below indicates the primary ingredients for the lot number indicated.

Primary ingredients

Vegetable Oil, Dried Milk Protein, Dried Hydrolyzed Casein, Dried Skimmed Milk, Dried Corn Syrup Solids

Secondary ingredients Dicalcium Phosphate, Calcium Carbonate, Potassium Chloride, Magnesium Sulfate, D,L,Methionine, L-Arginine Sodium Chloride, Choline Chloride, Vitamin E Supplement, Vitamin A Supplement, Vitamin D-3 Supplement, Zinc Sulfate, Ferrous Sulfate, Riboflavin Supplement, Manganese Sulfate, Copper Sulfate, Vitamin B-12 Supplement, Thiamine Hydrochloride, Pyridoxine Hydrochloride, Folic Acid, Glycine, L-Lysine, L-Threonine, Taurine,L-Tyrosine, Calcium Iodate, Biotin.


Solubility Test (what's this?)

This product showed a fairly high degree of insolubility when used as an instant mix with both temperatures of water. A pronounced cap and seal of unwetted powder formed at the top of the cylinder at the line markers indicated. However, reconstitution improved markedly when the product was allowed to rest for 4 hours, especially when the hotter water was used. Only a very loose cap of powder formed for the 125F water and no cap of unwetted powder was observed for the 175F water.

Figure 1. Hotter water and longer rehydration time improved the reconstitution of this product significantly. Figure 2. The consistency and flowability of the residue also improved with the hotter water temperatures and longer hydration time.


Physical characteristics

The texture of this product was very even and consistent. This resulted in very low measurement error described below. (The expected error shown below is equal to 1 standard deviation (statistically 68% of all measurements should fall within this range)).


Weight/TBSP and measurement variability

Weight (average) 6.7 grams / TBSP (large end of red scoop).
Texture and handling comments Smooth in texture, scoops evenly and consistently.
Observed measurement variability (what's this?) Scooping error generally within +/- 1.5%.

Low error -2.7%; High error +1.8%.

Scoop or weigh? Scooping this product will likely result in an accurate volume, but weighing will produce a more accurate measurement.


Other comments on this product or lot

When compared to this same product from a year or so ago, the degree of solubility observed is less when used as an instant mix and improved when allowed to rest for 4 hours in the refrigerator. Additionally, the amount of macro and micro minerals has been reduced to about 2/3 the level of a year or so ago. Dietary copper is almost absent from this product.


Copyright 2012. WildAgain Wildlife Rehabilitation, Inc. All Rights Reserved unless otherwise stated.