feed additives

FEED ADDITIVES THAT ALTER METABOLISM.

AN EFFORT BY:TEAN ZAHEERDVM,FVS

Feed Additives:Materials used in animalnutrition to :-improve feed efficiency-promote faster gains-improve animal health-increase production of animal products

MAJOR CATEGORIES OF FEED ADDITIVES Anti bacterials & Antibiotics. Chemotherapeutics. Organic Acids Probiotics & Prebiotics. Enzymes. Botanicals. Carcass Modifiers. Flavours. Aromas. Mold inhibitor. Mycotoxin Binders. Odour Modifiers. Hormones. Beta-adrenergic agonist (ß-agonist).

CLASSIFICATION

FEED ADDITIVES THAT ALTER METABOLISM Beta-adrenergic agonist (ß-agonist). Hormones (somatotropin (ST) growth hormones). Organic Acids Probiotics & Prebiotics. Enzymes. Botanicals. Carcass Modifiers.

Beta-agonists naturally occurring and synthetic organic compounds. share a common chemical structure with “phenethanolamines”. Orally effective dose is 5-30 ppm. Only two such compounds are approved by FDA (ractopamine

hydrochloride). FUNCTION: Increase skeletal muscle growth and decrease adipose tissue accumulation in growing animals.

Hormones Anabolic hormones and somatotrophins influence metabolism. FUNCTIONS: Co-ordinates lipid, protein & mineral metabolism. Increase muscle growth. Decreases fat accumulation in growing animals. Increase milk yield.

Organic acidsis an organic compound with acidic properties. FUNCTIONS:o organic acids reduce pH in the stomach, which

optimises conditions for pepsin activity, and o increases the digestibility of nitrogen, phosphorus and

several minerals.

Probiotics & Prebiotics Probiotics are beneficial microbes. Prebiotics are undigestible fibers that help stabilize

beneficial microbes. FUNCTIONS: Probiotic bacteria creates acidic environment Increase pepsin activity. Helps in mineral absorption.

Enzymes Aids in digestibility by making nutrients more

bioavailable to the animal .

 May increase the effectiveness of host enzmes.

 Improve digestion / absorption of nutrients. Examples: Phytase, cellusase, amylase e.t.c.

Botanicals

 comprise a wide variety of herbs, spices, and products derived thereof, and are mainly essential oils. 

FUNCTIONS:o reduced bacterial colony countso a greater nutrient digestiono reflecting an overall improved gut equilibrium. 

If we stop using these then it may:

Lessen meat and livestock production.

Higher production costs.

More feed may be required.

Increase in death loss.

Increase vet bills.

REFERENCES Banerjee,G.C.1999.Feeds & Principles of Animal

Nutrition. Oxford, IBH Publishing Co . Pvt .New Delhi India.

www.fefana.org www.poultry Hub.org www.biofeedtech.com/en/products/poultry.html www.fao.org.