Sponsor Day on animal feeding: Use of feed additives for fish health and welfare

Use of feed additives for Use of feed additives for fish health and welfarefish health and welfare

Dr Enric Gisbert

IRTA – Sant Carles de la Ràpita

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“Disease is the biggest risk to the industry. It undermines financing and market development and yet the industry is chronically under invested in disease management.”

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50-55% total production costs

Functional feedsFunctional feeds are regarded as the future of the aquaculture:

- by embracing nutrition strategies to address specific stresses, environmental situations, life stage requirements and pathologies, the industry can optimize animal performance as well as operational efficiency;

- by preventive health management through feed, aquatic animals can divert more energy to tissue growth and reduce biological energy reserves needed to fight disease.

Functional feeds:Functional feeds:- provide benefits other than just nutritional, - support health and reduce the risk of disease.

Certain nutrients (e.g. PHs, SDP, nucleotides) Chemicals (e.g. levamisole) Exogenous enzymes (e.g. phytase, xylanase) Immunostimulants (e.g. β-glucan, LPS) Organic acids (e.g. formic, sorbic, butyric acids) Pigments (e.g. carotenoids) Prebiotics Probiotics Synbiotics Vegetal extracts Vitamins C & E…

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Protein hydrolysatesProtein hydrolysates

Fish (CPSP) Casein Squid Krill Shrimp Mussel Yeast Pig blood (rendering industry)

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Sponsor Day, 16th May

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Exogenous enzymes:Exogenous enzymes:

- Hydrolysis of antinutrional factors.- Digestion enhancers.

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Immunostimulants:Immunostimulants:

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Organic acids:Organic acids:

Sponsor Day, 16th May

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Pigments:Pigments:

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Probiotics:Probiotics:

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Prebiotics:Prebiotics:

Inulin FOS MOS GOS XOS AXOS IMO

Vegetal extracts:Vegetal extracts:

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TÍTOL DEL POWER POINT. PRESENTACIÓ

Final product qualityFinal product quality• Flesh color• Fillet quality• Nutritional value• Shelf life Promote growth

Reduce mortality

Functional Functional feedfeed

• Yield• Uniformity• Mortality• Feed usage (FCR)• Use of facilities

ProductivityProductivity

Promote gut developmentPromote gut development• Villi height• Goblet cell number• Cell differentiation• Nutrient absorption• Gut integrity• Microbiota regulation

Enhance the immune functionEnhance the immune function• Innate immune response• Gut immune response

TÍTOL DEL POWER POINT. PRESENTACIÓ

Thank you for your attentionThank you for your attention

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