Abstract: A powder composition, characterized in that the powder composition includes delipidated egg yolk particles and a functional food material, the functional food material being impregnated in pores of the delipidated egg yolk particles; a method for preparing a powder composition characterized by mixing a delipidated egg yolk with water, spray-drying the resulting mixture, to prepare porous, delipidated egg yolk particles having pores on surfaces thereof; and mixing the resulting delipidated egg yolk particles with a functional food material, and drying the resulting mixture under reduced pressure; and a food including the powder composition mentioned above.

Abstract: A composition for suppressing behavior problems of pets, comprising theanine, and optionally one or more compounds selected from the group consisting of highly unsaturated fatty acids and cholines; and a method of suppressing behavior problems of pets, comprising administering the above composition to a pet having behavior problems. The composition can be effectively used for suppressing various behavior problems associated with the pet.

Abstract: The present invention relates to a feed additive for animals comprising tea extract, to a feed additive for animals of which active ingredient is tea leaf fiber, and to an animal feed comprising the feed additive for animals. The tea extract in the present invention exerts great effects in preventing and treating noninfectious and infectious diarrhea in domestic animals, poultry, and pet animals, improving milk quality of fresh milk, increasing milk yield, and improving reproductive efficiency. Also, the tea leaf fiber of the present invention improves intestinal function in domestic animals, decreases the occurrence of diarrhea, increases milk yield, improves feed efficiency and removes malodor of feces and urine.