Enteral Nutrition Calculator

For Dogs and Cats

Instructions: Enter values ONLY in the "yellow-colored" entry boxes. Entering values in the other boxes will not result in any changes in the calculations made for you. Upon completion, you may print this page for the patient's record. After entering the value in the yellow box, click anywhere outside the box and calculations will be made for you.

Step 1: Calculate basal energy requirement (BER)

If body weight is:

Less than 2 kg BER = 70 * (Body Weight in kg)0.75
Greater than or equal to 2 kg BER = (30 * (Body Weight in kg)) + 70


Enter body weight in kg: BER = kcal/day

Step 2: Calculate maintenance energy requirement (MER)

Examine the following list to choose a factor:

Status Factor
Cage Rest 1.00 - 1.25
Post Trauma 1.25 - 1.35
Trauma or Cancer 1.35 - 1.50
Sepsis 1.50 - 1.70
Major burns 1.70 - 2.00


Enter Factor
BER (kcal/day)
MER (kcal/day)
X =

Step 3: Calculate Volume of Formula Required

Choose a formula from the following table:

Product Caloric Content (kcal/ml) Protein (g/100 kcal) Protein (g/ml) Fat Content (g/100 kcal) Osmolarity (mOs/kg)
Feline/Canine a/d (Hills) 1.30 10.5 0.137 6.6 - -
Feline CV (CNM) 1.43 8.7 0.124 5.5 - -
Feline NRF (Iams) 2.11 7.48 0.158 6.95 - -
Canine NRF (Iams) 2.14 7.48 0.160 6.95 - -
CliniCare Canine 1.00 5.7 0.057 6.5 230
CliniCare Feline 1.00 8.6 0.086 5.3 235
CliniCare Feline RF 1.00 6.3 0.063 6.7 165
Ensure 1.00 9.0 0.036 6.0 470
Jevity 1.06 4.4 0.047 3.68 300
Osmolite HN* 1.06 4.4 0.047 3.68 310
Promote 1.00 6.2 0.062 2.80 370
Vital HN* 1.00 4.2 0.042 1.08 460
Vivonex HN* 1.00 4.6 0.046 0.90 810
Eukanuba Max Cal (Feline)* 2.14 7.48 0.075 7.1 ---


MER (kcal/day)
kcal/ml formula
ml formula/day
/ =

Step 4: Calculate Protein Requirement

Examine the following list to choose a level of protein supplementation:


Canine Feline
Maintenance 5.0 - 7.5 g/100 kcal 6.0 - 9.0 g/100 kcal
Hepatic or
Renal Failure		 <3.0 g/100 kcal 4.0 g/100 kcal


Enter Protein Level
(g/100 kcal)
MER
(100 kcal/day)
Protein Requirement
(g/day)
X =

Step 5: Calculate Protein Supplementation (If Required)

Name of formula chosen:

Protein Content (g/ml)
ml formula per day
Protein Provided (g/day)
X =

[If the supplemental protein value is negative, no supplementation will be required]

Protein
Requirement
(g/ml)
Protein
Provided
(g/day)
Supplemental
Protein
Required (g/day)


g ProMod
per day
- = / 0.76 g protein
per g ProMod		 =

Copyright WE Wingfield and RA Bowen, Colorado State University, 1998
This page was last edited:  09/21/00