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Protein Concentrates

Protein Concentrates. Pages 220-229. Classes of Protein Concentrates. Plant Byproducts of oilseed or grain processing Animal Byproducts of meat, dead animal, fish or dairy processing Nonprotein Nitrogen (NPN). General Characteristics of Protein Concentrates. Processing of Oilseed Meals.

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Protein Concentrates

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  1. Protein Concentrates Pages 220-229

  2. Classes of Protein Concentrates • Plant • Byproducts of oilseed or grain processing • Animal • Byproducts of meat, dead animal, fish or dairy processing • Nonprotein Nitrogen (NPN)

  3. General Characteristics of Protein Concentrates

  4. Processing of Oilseed Meals Expeller process Solvent extraction Oilseed Drying Drying Crushing Hull removal Hulls Cooking Flaking Extrude through dies Meal Hexane extraction Heat, if needed Meal Hexane & Oil Oil Distillation Hexane Oil

  5. Soybean Meal (SBM)

  6. Use of SBM in ration balancing • Commonly used in diets of all nonruminant and ruminant species • Expeller processed SBM may be useful in the diets of ruminants with high protein requirements • High producing dairy cows • Calves less than 600 lbs • Limit SBM in the early diets of young animals (To avoid allergic reactions) • Milk replacers • Use purified soy protein concentrate • Nursery pigs (First diet) • Use purified soy protein concentrate • Limit SBM to 12 to 15% of first diet

  7. Whole (Full-fat) soybeans • Nutrition characteristics • Crude protein 38% • Fat 18% (Highly unsaturated) • TDN 99.8% • Processing • Must heat at 100oC for 3 minutes • Destroys trypsin inhibitor and urease • Uses in diets • Depends on the economics of soybean oil • Nonruminants • Can replace all of the soybean meal in growing-finishing pigs • Will increase the concentration of unsaturated fatty acids in the pork • Ruminants • Limit to 8 lb/day in dairy cow diets to prevent milk fat depression • Liltte use in beef cattle

  8. Cottonseed Meal (CSM) • Nutritional characteristics • Crude protein concentration, % 36-41 • Protein digestibility High • Limiting amino acids Lysine, Methionine, Tryptophan • Ruminal protein degradability 75 • TDN, % 78 • NDF, % 28 • Palatability • Cattle High • Swine and poultry Moderate • Antiquality factors • Gossypol • Toxic to young nonruminants (Pneumonia-like symptoms) • Turns egg yolks green • Can be avoided with degossypolized CSM or adding Ferrous Sulfate (1:1 Fe:Gossypol) to diet • Sterculic acid • Turns egg whites pink

  9. Uses in diets • Ruminants • Can supply all of the supplemental protein • Commonly fed as supplement to grazing cattle in south • Nonruminants and poultry • Limit to 25 to 30% of the protein supplement • Whole cottonseed • Can be fed as both an energy and protein supplement • Also high in fiber • Used with lactating dairy cows • Limit to 8 lb/day

  10. Sunflower Meal (SNFM) • Nutritional characteristics • Crude protein concentration, % 40-45 • Protein digestibility High • Limiting amino acids Lysine • Ruminal protein degradability 75 • TDN, % 65-74 • NDF, % 40 • Palatability • Cattle High • Swine and poultry Low • Antiquality factors • Fiber

  11. Uses in diets • Ruminants • Can supply all of the supplemental protein • Swine • Limit to 30 to 50% of the protein supplement for pigs greater than 75 lb • Poultry • Limit to 30 to 50% of the protein supplement for broiler or layer diets

  12. Linseed Meal (LSM) • A byproduct of flax seed processing • Nutritional characteristics • Crude protein concentration, % 34-38 • Protein digestibility High • Limiting amino acids Lysine, Tryptophan • Ruminal protein degradability 75 • TDN, % 81 • NDF, % 25 • Palatability High • Antiquality factors • None • Additional beneficial characteristic • Contains mucin • Increases the glossiness of the coat of horses and show cattle

  13. Uses in diets • Ruminant and horses • Can supply all of the supplemental protein • Nonruminants and poultry • Limit to 25 to 33% of the protein supplement

  14. Rapeseed (Canola) Meal • Nutritional characteristics • Crude protein concentration, % 35-40 • Protein digestibility High • Limiting amino acids Lysine • Ruminal protein degradability 75 • TDN, % 69 • NDF, % 17 • Palatability Low • Antiquality factors • Goitrogens (Reduced by heating or use GM rapeseed) • Erucic acid • Myrosinase • Uses • Ruminants • Limit to 10% of the diet • Nonruminants and poultry • Young swine and poultry • Limit to 5% of diet • Mature swine and poultry • Lmit to 12% of diet

  15. Peanut Meal • Nutritional characteristics • Crude protein concentration, % 40-48 • Protein digestibility Low • Limiting amino acids Lysine, Methionine • Ruminal protein degradability 77 • TDN, % 75 • NDF, % 14 • Palatability Moderate • Antiquality factors • Trypsin inhibitor • Mold (Aspergillusflavus) • Uses • Ruminants • Can comprise of all of the supplemental protein • Nonruminants and poultry • Limit to 30% of the supplement • Supplement with lysine and methionine

  16. Animal Protein Concentrates • Byproducts of meat, dead animal rendering, poultry, fish, or dairy processing • Expensive relative to plant protein concentrates • Used in small quantities • Uses • Supply limiting amino acids, particularly to young animals • Replace more expensive protein sources in milk replacers • Impart additional nonnutritional benefits to young animals • Enhanced immune system • Increased maturity of digestive tract • Supply ruminallyundegraded protein to ruminants with high protein requirements

  17. Meat Processing Byproducts

  18. Uses in diets • Nonruminants and poultry • Feed at 5 to 10% of diet to balance lysine • Ruminants • Can be fed to supply ruminalundegradable protein • Ruminants can only be fed meat meal or meat and bone meal from nonruminant species • Prevention of prion transfer that causes Bovine Spongiform Encephalopathy (Mad Cow Disease)

  19. Blood products • Blood meal • Dried coagulated blood • 80% Crude protein • Low protein digestiblity • High lysine content, but low availability (20%) • Low isoleucine and methionine • Low ruminal degradability (25%) • Uses • Ruminant diets • Source of ruminallyundegraded protein • Nonruminant diets • Only use in small quantities in diets of young pigs

  20. Spray-dried blood plasma • 78% crude protein • High lysine content • Contains immunoglobulins • Stimulates immune function • Contains peptide growth factors • Stimulates maturation of intestinal epithelium • Uses • Nursery pigs • Fed at 4 to 7% of the diet • Milk replacers • Can replace all of the milk protein in replacers

  21. Fish Processing Byproducts • Fish meal • Produced from residues of fish processing industry or from fish caught for purpose of making fish meal • Nutritional characteristics • Crude protein concentration, % 35-70 • Protein digestibility High • Amino acid composition All essential AA • Calcium, % 2.2 • Phosphorus, % 1.7 • B vitamins High • Uses • Young swine and poultry • Used in small quantities to supply deficient amino acids • Little use in ruminants • Concerns • Expense • Unsaturated fatty acids may become rancid • Imparts a fishy flavor to pork

  22. Poultry Processing Byproducts • Poultry byproduct meal • Composed of heads, legs, intestine, and eggs • No feathers • Wet or dry rendered • Nutritional characteristics • 55-65% crude protein • Similar to meat and bone meal • Uses • Nonruminants • Small quantities to balance lysine • Ruminants • Little use

  23. Feather meal • Feathers are cleaned and pressure-treated • Nutritional characteristics • Crude protein, % 85 • Protein digestibility, % 75 • Limiting amino acids Lysine, Methionine, Tryptophan, Histidine • Uses • Nonruminants • No more than 3% of diet • Ruminants • Can be used as a source of rumen undegraded protein

  24. Dairy Processing Byproducts

  25. NPN supplements

  26. PROTEIN DIGESTION IN RUMINANTS True protein NPN Undegraded Small intestine Metabolizable Degraded protein Recycled via saliva (20% of dietary N) NH3 Microbial protein NH3 Liver Urea Kidney Excreted

  27. PROTEIN DIGESTION IN RUMINANTS True protein NPN Undegraded Small intestine Metabolizable Degraded protein Recycled via saliva (20% of dietary N) NH3 Microbial protein NH3 Liver Urea Kidney Excreted TDN

  28. Major concern with feeding NPN sources • Ammonia toxicity • Occurs when • Excessive NPN is fed • NPN is not properly mixed into diet • Inadequate energy is fed with NPN • Thumbrules for NPN use • Use NPN only in diets of ruminants with low protein requirements • Use in diets of: Feedlot steers > 600 lb Beef cows fed low protein roughages Dry dairy cows • Do not use in diets of: Lactating dairy cows Young cattle < 600 lb • NPN should not be > 1% of the diet DM • NPN should not supply > 33% of the total N of the diet • NPN should not be >10 to 15% of the protein supplement • NPN should not be >5% of the protein supplement fed with a low quality roughage • Supply adequate energy in the diet if NPN is added. • Grain or molasses

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