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ANIMAL, ITS NUTRIENTS, AND FEEDS

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Feed and Nutrition have very important role in animal production:

1. the highest cost is for feed (65-70%)2. to supply nutrients for animal maintenance and production

Feed animal as efficiently as possible

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Animal consumes feeds to get their nutrients supply for

maintenance and production

Nutrients contained in the feeds:

1. Water2. Dry Matter :o Ash/Mineralso Organic Matter :• Protein (Nitrogen) • Lipid/fat• Carbohydrates :˗Crude Fiber˗Nitrogen Free Extracts (NFE)

Nutrients required by animals:

1.Water

2.Energy

3.Protein

4.Vitamin

5.Mineral

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(Nitrogen compounds)

(Minerals)

Diagram of Nutrients in Proximate Analysis

Nitrogens /

SampleNutrient Content

Moisture(%)

Dry Matter

(%)

Crude Protein (% BK)

Rice straw 20-70 30-80 3-5

Grass 10-80 20 - 90 8-10

Leguminosa 10-80 20 - 90 15-25

Konsentrat 10-15 85-90 17 - 20

Water (+ 80 %)Contains only water

Dry Matter (+ 20 %)

• Energi• Protein• Vitamin• Mineral

Nutrients in feeds

Fresh Feeds (wet)

contains

Water (+ 20 %)Contains only water

Dry Matter (+ 80 %)

• Energi• Protein• Vitamin• Mineral

Nutrients in feeds

Dry Feeds

contains

Water (+ 50 %)Contains only water

Dry Matter (+ 50 %)

• Energi• Protein• Vitamin• Mineral

Nutrients in feeds

Wilt Feeds

contains

SampleMoisture content

(%)

DM content

(%)

Moistrure weight

(g)

DMWeight

(g)

Wet (Fresh) Feeds (1000 g)

+ 80 20 800 200

Dry Feeds (1000 g) + 20 80 200 800

Wilt Feeds (1000 g) + 50 50 500 500