Abstract
Feeding effects of steamed brown rice for forage on the growth and the meat productive performances of Japanese Black Steers were analyzed. In total eight Japanese Black steers were divided into two groups, one were fattened conventionally by normal concentrate diets (control, n＝4), the other was given diets containing 30% steamed brown rice as a replacement for a part of concentrate (experimental group, n＝4). Due to the higher intake of rice-straw in the test group, there observed significant differences in estimated total TDN intake of whole fattening period between two groups. Instead, no significant differences were observed in any growth traits and daily gain. No significant differences were observed in the carcass grading traits, moisture (%), crude fat (%), crude protein (%) and fatty acid composition of the longissimus muscles. It was suggested that the replacement of 30% concentrate diet into steamed brown rice dose not bring any undesirable effects on the growth and the meat productive performances, and can be used for substitutional diet in the fattening of Japanese Black Steers.
