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AGENT FOR IMPROVING FEED CONVERSION RATE, AGENT FOR IMPROVING SURVIVAL RATE, AGENT FOR IMPROVING NUMBER OF EGGS LAID BY EGG-LAYING HENS, METHOD FOR GIVING SAME TO ANIMALS, AND FEED
AGENT FOR IMPROVING FEED CONVERSION RATE, AGENT FOR IMPROVING SURVIVAL RATE, AGENT FOR IMPROVING NUMBER OF EGGS LAID BY EGG-LAYING HENS, METHOD FOR GIVING SAME TO ANIMALS, AND FEED
An agent for improving a feed conversion rate, an agent for improving a survival rate, an agent for improving the number of eggs laid by an egg-laying hen, a method of giving these agents to animals, and a feed which can directly and significantly improve the productivity of livestock farms are provided. At least one effective ingredient selected from cysteine and cysteine derivatives is given to animals. The effective ingredient may be added to drinking water, or may be added to the feed. Examples of the cysteine and cysteine derivatives can include acetylcysteine (NAC), S-methyl-L-cysteine (SMC), cysteine malate, and acetylcysteine amide.
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