What is the main advantage of using single-cell protein as a feed supplement for livestock?
It is cheaper than traditional protein sources
It contains more fat than traditional protein sources
It is more digestible than traditional protein sources
It has a longer shelf life than traditional protein sources
Single-cell protein is more digestible than traditional protein sources like soybean meal or corn gluten meal, which can lead to improved feed efficiency and animal growth. It is also a good source of essential amino acids, which can help meet the nutritional requirements of livestock. Hence option 3 is the correct answer.