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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.