WildAgain's Nutrition Calculator v3.1 Includes recent test data and expanded functionality (Feb 2020).
The calculator is a series of worksheets that provide the nutritional component analysis for various powdered milk replacer products (plus other ingredients) when mixed with water. The calculator is in the form of a Microsoft Excel workbook, so you do need to have a copy of Excel on your computer. When you click below on the link to the calculator, your browser will likely begin the download process, or it may bring up the calculator in Excel automatically. Either way, the calculator is easy to use, has many features and is data-rich. Once downloaded and opened up, begin on the "Read Me First" tab, as it explains the various other tabs in the workbook. Lots of data, functionality and customization options!
1.) Species-specific milk studies to help target a formula.
The calculator includes species-specific research studies that have previously analyzed the composition of the mother animal's milk found in nature for several species commonly rehabilitated in North America. Multiple studies have been included in the calculator for several species. In most of those cases, an average value is also included in the calculator. The calculator calculates and displays the degree to which the formula is balanced in terms of the relationship of the solids, protein, fat and carbs to the mother's milk as reported in the species-specific study.
2.) Optional input for other species-specific studies.
If the calculator does not already include a specific study, the user has the option to input up to three research studies of mother's milk composition. The user will need to have certain data about the composition of the milk from the research study (such as % solids, % protein, etc.).
3.) Construct a formula from multiple manufacturers, products, individual lots and ingredients.
The calculator has been updated (Dec 2019) and now provides a selection of milk replacer products (based on 150+ lab tests of individual lots) as well numerous supplemental ingredients. The user may select up to 10 products or ingredients concurrently from an easy to use drop-down menu when evaluating a formula. The detailed "Typical Nutritional Analysis" tab provides test data for each of the individual products and ingredients. The provides input of products or ingredients either in volume (parts) or by weight (in grams). Some users prefer to enter the values in grams to alleviate creating inaccurate results because of measurement error when scooping powder.
4.) Allows the user to input up to 10 optional products or ingredients.
If the calculator does not already include a desired product or ingredient, the user has the option to input up to ten custom products. The user will need to have certain data about the composition of the product or ingredient (such as % solids, % protein, etc.) as well as the weight in grams of 1 tablespoon of the product or ingredient.
5.) A new and simple calculator for kcals.
New functionality has been included to allow the simple calculation of kcals for any ingredient when inputting the percentage of solids, protein, fat, ash and crude fiber. Two options are provided depending on if the percentage for carbs is known. If not, it calculates a value for carbs using the subtraction method (Nitrogen-Free Extract). The values for kcals/gram are provided using the Atwater system as well as the Modified Atwater system, often used in the pet food industry.
All Users. As the calculator is provided in the .xlsx version, the workbooks should open successfully when using any recent version of Microsoft Excel on either a Windows or Mac platform. There are some known slight formatting issues when using a Windows platform (sorry!), but these do not effect the functionality of the calculator or the results it provides. The workbook is not optimized for a tablet or smart phone platform.
Additionally, since this is a Protected workbook, when you open it up after downloading, you may get the message below that requires you to click "Enable Editing") before you can enter values into the calculator (we have not included or embedded any malicious code or viruses):
Returning Users. All of the functionality of the calculators previously listed on this website are included in this new version. It is recommended that any previous version that may have been downloaded should be discarded and replaced with this new version. That is unless you have saved user-entered ingredients, then you may want to save the older version for reference.
New Users. Download the calculator! Do visit all the tabs in the workbook to understand what is available. The "Read Me First" tab provides a road map.
(NOTE: The calculator has a preselected species; products; and recipe for illustrative purposes only. It is not meant as a recommended recipe!!!)