Poultry Improvement Contest

Protein

Proteins

• Proteins are organic compounds made from amino acids.

• They contain carbon, hydrogen, oxygen, nitrogen, and some sulfur.

Protein Comes From:

• Plants • Protein is found in small amounts in the germ of

grain kernels.

• Protein supplements include: soybeans, soybean meal, cottonseed meal, canola, and legumes.

• Animals• Protein supplements include: fish meal, meat and

bone meal, dried milk products, blood mea and tankage.

Why Are Proteins Needed?

• Proteins are needed for new tissue growth and replacement of old or damaged tissue due to injury or disease.

• Help to form the greater part of muscles, internal organs, skin, hair, wool, feathers, hoofs, and horns.

Protein Requirements

• The two (2) most important factors to remember when feeding protein:

• Amount of protein.

• Quality of protein.

• These two factors interact with each other (we can feed less of a high quality protein and vice versa).

Essential Amino Acids

• Many Amino Acids are considered essential for poultry because they can not be made in sufficient amounts for body functions.

• Must be provided in the ration.

• Arginine, Histidine, Isoleucine, Leucine, Lysine, Methionine, Phenylananine, Threonine, Tryptophan, Valine, Alanine, Aspartic Acied, Glycine, and Serine.

Nonessential Amino Acids

• Nonessential Amino Acids in poultry rations.

• They are considered nonessential because they can be synthesized in the body of animals from other amino acids.

• They do not need to be provided in the ration.

• Citrulline, cysteine, cystine, glumaic acid, Hyroyglutaic acid, hydroxpyproline, Norleucine, Proline, and Tyrosine.

Too Much Protein

• Any protein in excess of the amounts needed for growth and tissue repair is burned and used to supply energy.

• This is a costly way to provide energy. Carbohydrates are a cheaper energy source.

• TIP-Feeding too high of a protein ration may cause fatty liver syndrome.