10. Fish
Fish have the best FCR (Feed Conversion Ratio) of all other animals on our list of most profitable livestock to raise in 2017. For 1.1 kilogram of feed, you get 1 kilogram of fish meat. To put things into perspective, it takes 100 kilograms of feed to get between 4 and 10 kilograms of beef. On the other hand, fish require a large investment in the beginning, as you have to create a suitable ponds or pools for them.
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