Week 3
Protein Sources |
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Grain Legumes
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Text Transcript
Time: 3.17
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- Pulse crops
- Pulses – seeds of legumes
- Primarily grown for human foodstuffs
- Refuse seeds fed to animals
- General nutritional value
- 20-30% CP
- Low in methionine and tryptophan
- Antinutritional factors
- Including protease inhibitors, goitrogens, cyanogens, antivitamins, metal-binding factors, lathyrogens, and phytohemagglutins
- Processing with heat treatment addresses factors
- Soybeans
- SBM primary feedstuff
- Full-fat soybeans
- High in protein and energy
- Processed to inactivate antinutritional factors and prevent rancidity
- Peanuts
- Dry beans
- Include common, snap, kidney, pinto, navy, mung, and lima
- CP 20-28%
- Antinutritional factors
- Processing required
- For monogastrics, limit amount fed
- For ruminants, fed in moderate amounts
- Field beans
- 24-30% CP
- As portion of supplementary protein
- Lupins
- Grain varieties referred to as sweet lupins
- 25-35% CP
- Low alkaloid content
- For monogastrics, poultry perform better than swine
- Ruminants perform well
- Peas and lentils
- Peas - 20-29% CP
- Nutritional value of lentils similar to peas
- For monogastrics, more favorable for swine versus poultry
- For ruminants, protein and energy feed
- Additional
- Legume seed screenings
- By-products of seed processing
- 22-25% CP
- Acceptable for ruminants
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