1Fats and oils Fats and oils in animal feedin animal feedFats and oils in animal feed• How fats and oils are added in animal feed.• Why fats and oils are added in animal feed.• What types of fats and oils are used in animal feed. Fat supplementation• In formulating animal feed, fat is often supplemented. • Types of supplemented fat can directly affect the meat quality of simple stomach animal.– Hard pork belly fat vs. soft pork belly fat– Omega 3 egg• Fats can be added by mixing with other ingredients or by post-pellet spray.2Fat supplementation• It ranges from 0 to 25% depending on species. – Typically less than 5% of fat mixed in animal feed as it becomes oily. However, more fat can be added by post-pellet sprayor to specialty feed.Spinning diskPelletfeedFat tanksBenefits of fat supplementation• Increased energy (2-4 folds more than CHO)• Dust control (1%)• Improvement of health• Improved palatability, color, texture•Increase formula density•Increase formula density• Reduce metabolic heats: for animals under heat stress• Source of essential fatty acids– Linoleic acid (C18:2) – Linolenic acid (C18:3)Fat supplementation• Fat can be used as an energy source generating LESS ‘metabolic heat’ compared with carbohydrates.– Animals under heat stress can be fed high fat / low carbohydrate diets.3Various fat/oil sources•Animal fat– Lard (choice white grease)– Tallow– Poultry fat– Fish oil–Dry fat (granule or powder)Dry fat (granule or powder)• Vegetable oils– Canola oil– Corn oil– Soybean oil• Mixed: Yellow grease (restaurant grease)A-V blended fat (animal-vegetable) Various fat/oil sourcesSource ME Sat:Un %C18:2Choice white grease 7,955 40:60 12Poultry fat 8,180 30:70 20Yellow grease 8,205 30:70 18Tallow7 68052:483Tallow7,68052:483Canola oil 8,410 7:93 20Coconut oil 8,070 92:8 2Corn oil 8,755 13:87 60Soybean oil 8,400 15:85 50Herring oil 8,330 23:77 1Menhaden oil 8,135 33:67
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