WildAgain Wildlife Rehabilitation, Inc.


Powdered milk replacer product tests
Fox Valley® 20/50 Lot# 042160

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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

Calculated

Moisture % 5.09 Solids % 17.1
Protein % 26.8 Protein % 4.8
Acid Hydrolysis Fat % 48.7 Fat % 8.8
Carbs (subtraction) % 11.9 Carbs % 2.1
Calcium % 1.77 Calcium % .32
Phosphorus % 1.09 Phosphorus % .20
Magnesium % .07 Ca/P Ratio 1.62
Sodium % .18 Kcals/cc (Atwater) 1.07
Potassium % .44 Kcals/cc (AAFCO) .99
Peroxide Value (what's this?) not tested    
Ave. dry wt grams (1 TBSP) 6.5    
Kcals/gram (Atwater) 5.93    
Kcals/gram (AAFCO) 5.49    
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, regardless of which water temperature was used (no unwetted cap).

Figure 1. For immediate use, there was a noticeable separation, with froth floating at the lines indicated. This appeared to be a high degree of undissolved powder in the solution. Upon emptying, these two cylinders on the left had formed a hard cap of unwetted powder. On the right, the product reconstituted much more fully with the longer rehydration time of 4 hours, with only a slight yellow layer (oil?) forming at line 99. Upon emptying, these 2 cylinders flowed freely with no cap of unwetted powder. Figure 2. Less residue (unwetted powder) was observed when the cylinders were emptied after 30 minutes for the samples allowed to rest for the 4 hours.

 

Physical characteristics

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

Texture

Weight/TBSP and measurement variability

Weight (average) 6.5 grams / TBSP (large end of red scoop).
Texture and handling comments Very fine, scoops evenly and consistently.
Observed measurement variability (what's this?) Scooping error generally within +/- 2.2%.

Low error -1.5%; High error +6.2%.

Scoop or weigh? Weighing or scooping will produce a fairly consistent and accurate measurement.

 

Other comments on this product or lot

None at this time.

 

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