放牧区におけるトナカイの青草摂取量の季節変化

概要

論文の詳細を見る
Reindeer feeding in Japan still poses some problems. Determination of the amount of grass intake by an animal is useful for estimation of the grazing area required. The present work was done from May to October on an experimental reindeer farm in Akita Prefecture using the protective cage method. The amount of raw-grass intake was related to the change of temperature, with high temperature inhibiting reindeer intake. Amount of crude protein and total digestible nutrients (deduced) eaten showed a decreasing tendency in accordance with the increase of average temperature, but there was no significant difference. Although grass intake volume appeared to be controlled by the temperature, the amount necessary to satisfy an animal's appetite was supplied because of the nutritive value of the grass. When the necessary nutrition is supplied by grass in a grazing area, the optimum area can be reduced after the early summer season, thus saving on grassland management. Jpn. J. Livest. Management, 31(3) : 63-67,1996. Received July 31,1995. Accepted December 7,1995.
日本家畜管理学会の論文
1996-02-15