Nutrient Digestibility, Palatability and Stool Quality of Canine Food Including Brown Rice
2011
Kim, K.H., National Institute of Animal Science, RDA, Suwon, Republic of Korea | Chang, J.S., CJ Cheiljedang Corporation, Seoul, Republic of Korea | Oh, Y.K., National Institute of Animal Science, RDA, Suwon, Republic of Korea | Ji, S.Y., National Institute of Animal Science, RDA, Suwon, Republic of Korea | Moon, S.H., Konkuk University, Chungju, Republic of Korea | Kim, M.H., Konkuk University, Seoul, Republic of Korea
In this experiment, two inclusion levels (15 and 30% of diets, as-fed basis) of brown rice (BR) were tested against a control diet with 0% BR (51% wheat flour of diet). Six female Maltese (8~9 months age, initial mean body weight of 2.8±0.3 kg) were assigned to treatments in replicated 3×3 Latin square design. Total tract digestibilities of DM, OM, acid hydrolyzed fat, CP and gross energy by dogs fed experimental diets responded quadratically (P less than 0.01 or less than 0.05) to BR inclusion levels. Similarly, quadratic responses (P less than 0.001, P=0.015) were observed for digestible energy and metabolizable energy values, respectively. Wet and dry fecal output also exhibited quadratic responses (P=0.006, P=0.014, respectively) but no differences were observed between control and BR 30% diets. Linear (P=0.008) effect was observed for fecal score in dogs fed BR, and fecal ammonia concentration increased linearly (P=0.001) in response to increasing BR inclusion levels. It seems that the increase in fecal ammonia concentration may be partially related to the decrease tendency (P=0.07) in short-chain fatty acid concentration. In this experiment, inclusion of BR in dog diet did not result in pronounced changes in the digestibility but in fecal score. Although inclusion of BR in diets showed profound positive effect on fecal score, it is confounded by the high inclusion level of poultry offal meal.
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