Week 3
Protein Sources |
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Protien Supplements of Animal Origin - Marine-Based Products
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Text Transcript
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- Fish meals
- Majority of marine-based high protein feeds
- Origin
- Species acquired for feed or by-products of processing of marine
species
- Fish meal
- Clean, dried, ground tissue from undecomposed whole fish or fish
cuttings, either with or without extraction of portion of oil
- Figure 7.5 – Fish meal
- Maximum water content at 10%
- Maximum salt content at 7%; stated greater than 3%
- Nutritional value
- High quantity and high quality of protein
- CP 57-77% (AF basis)
- Essential amino acids including lysine
- Good source of B-complex vitamins and minerals
- Available
- Influenced by type of raw material and processing
- Processing
- Influence nutritional value, storage properties, and quality of
resultant product
- Reduce nutrient availability
- High oil
- Rancidity
- Off-flavors in monogastric products
- Addition of antioxidants
- Feeding
- Expensive
- For monogastrics
- High quality protein source
- For ruminants
- Undegradable protein source
- Other marine-based products
- Fish residue meal, protein concentrate, liver and glandular meal,
condensed solubles, dried solubles, by-products, condensed protein
digest, dried protein digest, silage, and liquefied fish
- Brief descriptions on page 102 of text
- Shrimp and crab meals
- By-products of processing
- Nutritional value
- Shrimp meal
- Crab meal
- CP 30% (AF basis)
- High mineral content
- Chitin
- Glycoprotein
- Figure 7.6 - Chemical structure of chitin
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