contribution of fish to nutrition from wild and farmed fish
DESCRIPTION
Contribution of fish to nutrition from wild and farmed fish. Jogeir Toppe, FAO; Zadar, 6 June 2013. Fish -a complete source of nutrients. DHA. EPA. Vitamin A. Vitamin D. Vitamin B12. Protein. Zinc. Iodine ?. Selenium. Calcium. Proteins. 17 % of protein of animal origin - PowerPoint PPT PresentationTRANSCRIPT
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Contribution of fish to nutrition from wild and farmed fish
Jogeir Toppe, FAO; Zadar, 6 June 2013
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Fish -a complete source of nutrients
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Protein
EPADHA
Vitamin B12
SeleniumIodine ?
Zinc
Calcium
Vitamin DVitamin A
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Proteins• 17 % of protein of animal origin• >50 % in many of the poorest
countries
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Omega-3 Fatty Acids marinevegetable
• Marine origin:
– Eicosapentanoic acid (EPA); C20:5 ω-3– Docosahexaenoico acid (DHA); C22:6 ω-3
• Vegetable origin: – Alfa linolenic acid (ALA); C18:3 ω-3– <5% converted to EPA– <0,5% converted to DHALower nutritional value
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Omega-3; DHA and EPA
IQ +6 -36%
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Minerals and micronutrients…
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Minerals and micronutrients
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Farmed fish, an alternative?
• Aquaculture the fastest growing food producing sector (animal origin)
• Contributes about 50% of fish consumed
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Aquaculture contribution
0%
25%
50%
75%
100%
1950 1960 1970 1980 1990 2000 2010
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Farmed fish, any benefits ?
Greater possibilities for an optimal product ?
More constant nutrient
composition
Most inputs can be
controlled
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Use of fish oil
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Annual contribution of ω-3 millon people by pelagic species
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Annual contribution of ω-3 millon people by farmed species
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Annual contribution of ω-3 millon people by farmed species
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Salmon, farmed
Salmon, wild
Carp,common Tilapia Chicken Beef
Protein g/100g 20 20 18 20 19 21
Lipids g/100g 13 6.3 5.6 1.7 15 12
Water g/100g 65 69 76 78 66 65
Ash g/100g 1.1 2.5 1.5 0.9 0.8 1.0
DHA + EPA (ω-3)
mg/100g 1966 1436 350 91 40 3
USDA National Nutrient Database (USDA, 2012)
Comparison of Omega-3 levels in fish and other meats
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Farmed fish• Aquaculture needed to meet increasing demand• Excellent source of most needed nutrients• Optimal products can be produced• Any farmed fish a good alternative to any other
meats such as beef, pork or chicken• Main aq. Species such as carps are herbivorous; less
need for fish in feed