Attachment 2: Statement of Requirements

United States Department of Agriculture
Research, Education and Economics
Agricultural Research Service

Description
Four 20% crude protein (as is) supplement to be fed at a rate of 2 lb/hd/d mature gestating beef cows on native range. Supplements must be equal in protein (isonitrogenous) and energy (isocaloric):
1. Control (Wheat middling base or comparable higher energy higher fiber concentrate)
2. Control + Propionate (50 g/d calcium, or sodium-propionate) 3. Control + Rumen Protected Fat [57g/d (Energy Booster 100, Milk Specialties) and 57 g/d (Essentiom (Megalac-R), Arm and Hammer)]
4. Control + Propionate + Rumen Protected Fat (50 g/d Propionate same source as above) and [57 g/d (Energy Booster 100, Milk Specialties) and 57 g/d (Essentiom (Megalac-R), Arm and Hammer)]
Guaranteed Composition and Fortification
As is %
Crude Protein, minimum
20.0%
Equivalent – CP from NPN, minimum
0.5%
maximum
2.0%
Equivalent – Escape CP, minimum
maximum
TDN
minimum
Phosphorus, minimum
Potassium, minimum
Zinc
Copper
Cobalt
Vitamin A,
minimum
Vitamin D, IU/lb
minimum
Vitamin E, IU/lb
minimum

4%
10%
68.0%
1.2%
1.0%
300 ppm
100 ppm

5 ppm

30,000 IU/lb
10,000 IU/lb

15 IU/lb

Base on a combination of the following (Please attempt to keep feed ingredients consistent across supplement): Wheat middlings, fishmeal, blood meal, sunflower meal,

processed grain byproducts, grain and plant protein products. No forage roughage. Amounts and kinds of phosphorus (excluding rock phosphate) may vary if phosphorus concentration is maintained. Amounts and kinds of trace mineral may vary if minimums are maintained. Fortify with copper sulfate (exclude copper oxide) and zinc oxide. Least cost source of propionate (Ca or Na-Propionate).

EXAMPLE FORMULATION*

Control

Ingredient

Label color
Orange

Control +
Propionate

Control
+ RPF

Control +
Propionate
+ RPF

Label color
Red

Label
color
Blue

1,380.38

1,428.47

1,360.00

1,250.00

MALT SPROUTS

SOYBEAN-HI PRO

DRIED DIS GRAIN

MOLASSES

CALCIUM CARBONTE

PHOS 21% DICAL

SALT, Bulk

Rumen Protected Fat

UREA – 281

TM-RANGE

2.81

2.83

2.84

2.86

VIT E 20,000IU/#

1.5

1.5

1.5

1.5

VIT A 650/KIU/GM

0.2

0.2

0.2

0.2

VIT D 500 KIU/GM

0.09

0.09

0.09

0.09

COBALT CARBONATE

0.02

0.02

0.01

0.01

2,000

2,000

2,000

2,000

WHEAT MIDDS, STD

Calcium Propionate
a

a

Label color
Yellow

Rument Protected Fat (RPF) from 2 sources: (50% Energy Booster 100, Milk Specialties and 50% Essentiom, Megalac-R, Arm and Hammer)