Korean Journal of Veterinary Research 1997;37(2):439-443.
An observation on the contents of nutrient, fatty acid and changes of lipid peroxide in different storaged commercial pet foods for dogs and cats
Hisataka Aoki1, Takeo Sakai2, Won-Chang Lee3
1Faculty of International Relations, Nihon University
2Department of Preventive Veterinary Medicine and Animal Health, School of Veterinary Medicine Nihon University
3Department of Veterinary Medicine and Animal Resources Research Center, Kon-Kuk University
애완동물용 식품의 영양성분 및 지방산의 분석과 보관상태별 지질과산화물량의 변화 관찰
1, 2, 이원창3
1일본대학 국제협력부
2일본대학 생물자원과학부 수의학과
3건국대학교 수의학과, 동물자원연구센터
Abstract
While the contents of protein, fat, fiber, sodium, vitamin A, and vitamin D in dry dog food were 22.0%, 7.8%. 5.4%, 0.36%, 2035 IU/100g and 201 IU/100g, respectevely, those in dry cat food were 29.8%, 6.5%, 4.5%, 0.38%, 1543 IU/100g and 163 IU/100g, respectively. Concerning the lipid contents of pet food, the concentration of unsturated fatty acid was slightly higher of dry dog food(59.2%) than that of dry cat food(55.9%), but the differences was statistically not significant. The lipid peroxide concentration in dry dog food after storage in a refrigerator at $4^{circ}C$ or dark place of room temperture at $20{pm}2^{circ}C$ for 30 days(8.0 nmol/g and 7.8 nmol/g) was not different from the value at the beginning of storage. However, upon storage in direct sunlight at $20{pm}2^{circ}C$ of room temperture, the concentration increased 4.9-fold(35.5 nmol/g) after 5 days and 10.2-fold(73.6 nmol/g) after 30 days. These results suggest that pet food may be refrigerated or stored in a dark place after unsealing.
Key Words: pet foods, nutrient, fat acid, lipid peroxide
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