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CLASSIFICATION OF ANIMAL FEEDS

Agricultural Science

This is based on nutrient composition:

Feed additives.

Roughages

Are feeds of low available nutrients per unit weight and high fibre content

Examples:

Characteristics

Concentrates

Are feeds of high available nutrients per unit weight.

Examples:

Characteristics

 

Feed Additives

There are two types:

– medicants (coccidiostats),

– Stilboestrol (used in beef animals)

– Oxytocin (to increase milk let down).

Functions

Compounded Feeds

Poultry feeds can be categorized as:

 

Meaning of terms used to express feed values

Nutritive ratio (NR):

–  ls the proportion of protein to carbohydrates and fats.

– In young animals 13:6

– In old animals 1:8.

Crude protein (C.P): ls the total amount of protein contained in a feed.

Digestible Crude Protein (D.C.P): Is the portion of crude protein which an animal is capable of digesting.

Crude Fibre (C.F.):

–  ls the total amount of fibre contained in a feed.

–  It is mainly lignin and cellulose.

Digestible Fibre (D.F.): ls the portion of the total fibre contained in a teed which an animal is capable of digesting.

Dry Matter (D.M.): ls the material left in a feed after water has been removed.

Starch equivalent (S.E.): ls the amount of pure starch which has the same energy as 100kg of that feed.

Total Digestible Nutrients (T.D.N.): ls the sum of all the digestible organic nutrients such as fats, proteins, carbohydrates and fibre.

 

See also:

LIVESTOCK HEALTH (PARASITES)

NURSERY PRACTICES

SEED RATE

SELECTION OF PLANTING MATERIALS

FACTORS AFFECTING ROOTING OF CUTTINGS

SUBSCRIBE BELOW FOR A GIVEAWAY

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