Week 1

Feedstuffs and Nutritional Value

Introduction

Text Transcript

Time: 3.30

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• Introduction
• Numerous and diverse
• Figures 3.1 through 3.5 – Feedstuffs

• Selection
• Nutrients provided similar to nutrients required
• Cost per unit
• Definition
• Component of ration or diet that serves one or more function
• Functions
• Provide one or more nutrient
• Modifies diet characteristics
• Classification
• International Feed Identification System
• Primary nutrient provided by feedstuff
• Table 3.1 – Eight classes of International Feed Identification System

Table 3.1 - Classes of International Feed Identification System

Number	Name
1	Dry roughages
2	Pasture and range grasses
3	Ensiled roughages
4	High energy concentrates
5	Protein sources
6	Minerals
7	Vitamins
8	Additives

• International Feed Identification Number (IFN)
• Use: ration formulation
• Commercial feed trade
• Table 3.2 – Seven classes approved by Association of Feed Control Officials (AFCO)

Table 3.2- Classes as Approved by AFCO

Class
Animal protein products
Forage products
Grain products
Plant protein products
Processed grain by-products
Roughage products
Molasses products

• Collective terms
• Origin of the feedstuff
• Use: commercial feed trade; labeling
• Terminology – Text pp. 50-53