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タイトルヨミ
ホウボクギュウ ノ セイリ セイタイ ニ カンスル ケンキュウ 1 3 ホウボクギュウ ノ ネンレイ ノ サイ コツキ ノ ウム ガ ソノ コウドウ ニ オヨボス エイキョウ ニツイテ
日本語以外のタイトル
Physiological and Ecological Studies on the Grazing Cattle(I-3) : On the Effect of Age and Nursing to Grazing Behaviors
ファイル
言語
日本語
著者
青木 晋平
加藤 正信
藤光 正昭
武田 祥
内容記述(抄録等)
In order to study the effect of age and nurrsing on the grazing behaviors, four groups of Japanese Black Breed of Cattle, 3 heifers (18-21 monthes after birth), 3 prime cows (5-7 years old), 3 prime cows nursing (5-6 years old) and 3 old cows (9-10 years old) were used in this study under constant observation on range for 24 hours in May 23 to 30, 1961.
The results obtained are summarized as follows :
1. Grazing times per 24 hours of old and nursing groups were longer than those of young and prime ones.
2. On ruminating and grazing times per 24 hours, a similar tendency was found in old and nursing groups, but the ruminating times of these groups were short in spite of the fact that the grazing times were long.
The ratio of ruminating time to grazing time was low than expected in both groups.
3. The remasticating time was longer in old group than in young, and the number of remastication was few in old group.
4. It seems that the effect of nursing on the resting time was most remarkable and the resting time of nursing group was the longest of all groups.
5. The migrating time of nursing group was the longest and its loafing time was the longest of all.
6. The distance walked was the longest in the nursing group, and the shortest in the old.
掲載誌名
島根農科大学研究報告
10
開始ページ
(A)49
終了ページ
56
ISSN
05598311
発行日
1962-03-31
NCID
AN00108241
出版者
島根農科大学
出版者別表記
The Shimane Agricultural College
資料タイプ
紀要論文
部局
生物資源科学部
備考
A,Bを含む
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