... in biological tissues; besides, it can save methionine.Choline is of great importance to the growth of ... Therefore, choline must be added to the feed for young animals.(2) Experiments show that lack of ... , therefore, must be added to the feed for domestic animals to ensure the sound growth of them ... Recommended:In general, 1kg choline chloride is enough for 1,000kg feed. In case of young animals, ...