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ISSN : 1225-2964(Print)
ISSN : 2287-3317(Online)
Annals of Animal Resource Sciences Vol.31 No.3 pp.87-101

Starter Culture Selection and Verification for Senior Dog Fermented Food Development

Eunchae Lee1,So Jeong Park1,Ji Hyeon Lee1,Hyung Hak Jung3,Jong Won Joo4,Sang Rak Lee2*
1Researcher,2Professor, Department of Animal Science and Technology, Konkuk University, Seoul 05029, Korea
3CEO, 4Director of research, AT Bio Ltd, Pocheon 11191, Korea
*Corresponding Author: Sang Rak Lee, Department of Animal Science and Technology, Konkuk University, Seoul 05029, Korea. Tel: +82-2-450-3696, E-mail:


The senior dog population (ages 7+) is increasing worldwide because of a larger interest in the health of companion dogs. In this study, we aimed to develop dog foods via fermentation to address the nutritional needs of senior dogs. The dog food ingredients were fermented with candidates of starter culture and then the fermentation efficiency was compared using pH and ammonia nitrogen for selection of optimum strains. The fermentation was carried out with a moisture content of 60% and starter culture of 1.0×107 cfu/g at 3 7℃ for 24 h. And there were manufactured pre- and post-senior dog foods (treatments) including fermented rice, fermented pinto bean, and fermented soybean meal and it compared with non-fermented dog foods (controls) on fermentation characteristics, in vitro dry matter and crude protein digestibility, and palatability. As results of this study, fermentation efficiency was higher when rice or wheat was inoculated with Lactobacillus brevis (ΔpH; -2.74 ~ -2.94) and meat and bone meal with Lactobacillus reuteri (ΔNH3-N conc.; 4.29 g/L). The ammonia nitrogen level, total volatile fatty acid content, in vitro dry matter and crude protein digestibility of L. brevis-fermented dog food were significantly greater than those of non-fermented dog food (p<0.05). Further, in case of palatability tests, fermented foods tended to have higher palatability compared to non-fermented foods, and no negative effect was observed in fermented foods. These results suggest that fermented food is suitable for senior dogs and could help to maintain adult dog health.

노령견 발효사료 개발을 위한 발효균주의 선발과 검증

건국대학교 동물자원과학과 연구원1, 교수2;
㈜에이티바이오 대표이사3, 연구소장4