Efficient protein
Fish are the most efficient animal to produce, as the feed conversion ratio (FCR) is so low. FCR is the amount of feed an animal needs to gain one kilogram of body weight.
Due to many years of research into the specific nutritional requirements, Atlantic salmon is now the most efficient animal to produce, with the lowest FCR. Typically Atlantic salmon needs 1.15 kg feed to gain 1 kg body weight. Pigs need more than twice as much food as salmon to gain 1 kg, while sheep need to eat almost six times as much.
