本研究では,焼酎粕乾燥脱水ケーキを乳牛に給与した場合の乳量,乳質,乳の香気成分や風味に及ぼす影響を検討する目的でフィールド試験を2回実施し,以下の結果を得た.1)焼酎粕乾燥脱水ケーキを給与しても,飼料摂取量には影響が見られなかった.2)乾燥脱水ケーキを給与すると,乳量が少し増加する傾向が見られた.しかし,乳質には顕著な差は見られなかった.3)乾燥脱水ケーキを給与しても,乳の香気成分は影響を受けなかった.4)乾燥脱水ケーキを給与した乳牛の乳の官能検査の結果,乾燥脱水ケーキが乳の香りや味には影響を与えないと考えられた.
In the present study, double-reversal feeding experiments (field experiments) with milking dairy cattle (Holstein) were conducted two times to examine the effect of feeding the dried cake of shochu distiller's by-products (SDB) on the milk yield, milk quality, milk taste and flavor, and the following results were obtained : 1) No significant difference in feed intake was observed between the control group and the test group fed with the dried cake of SDB. 2) Feeding the dried cake of SDB tended to increase milk yield to some extent, but there was no difference in milk quality between the two groups. 3) Feeding the dried cake of SDB to the milking cows gave no influence on the aroma components in the milk. 4) Organoleptic evaluation of the milk tended to show that feeding the dried cake of SDB to the milking cows gave no influence on the taste and flavor of the milk.