Study on the Grazing Behavior and animal Production of Korean Native Cow in Different Grazing System at Grasses Dominant Pasture

화본과 목초에서 방목체계별 한우육성빈우의 방목습성 및 생산성에 관한 연구

To compare animal production and grazing behavior, Wye college rotational, set stocking, modified set stocking and zero grazing system were set in Alpine area. Each system has one hectar and 4 head of Korean native cow. In order to investigate grazing behavior, eye observation was made every 2.5 minute for 15 hours of daylight from 5 a.m. to 20p.m. Results obtained were as follows. 1. The system of Wye college and rotational grazing have greater output of live weight per hectar than that of other gazing system applied. But practically rotational and modified set stocking were thought to be convenient grazing system for hill pasture and also modified set stocking was simple to operate, so that it seemed to be recommended as an alternative to rotational grazing system. 2. The daily live weight gain was the highest in May, the lowest in July and after then steadily increased. 3. Grazing hour during daylight varied from 331.1 min to 576.0 min by grazing system, but by season, herbage availability, weather condition. 4. Korea native cow tended to have three primary grazing time begining at one hour after sunrise, noon, and around 15p.m.

대관령지역에서 달리함에 따른 韓牛育咸牛의 放牧習性과 生産性을 규명하기 爲하여 Wye大學區, 輪換, 固定, 修正固定, 刈取給與區의 處理를 하였다. 供試面積은 5ha, 공시두수는 육성빈우 20두였으며 放牧習性을 調査하기 爲하여 아침 5:00시부터 20:00시 까지 每 2.5분(2분 30초) 마다 調査하여 얻어진 結果는 다음과 같다. 1. ha당 증체량에 있어서 Wye大學區와 輪換區가 바른 처리구보다 많았으나 山地草地放牧方法으로서 實在로 運用하는데는 윤환구나 修正固定區가 좋았으며 특히 修正固定放牧은 윤환구의 대안으로 추천할 만한 것이었다. 2. 日當增體量은 5월에 가장 높았고 7월에 가장 낮았으며 그후는 차차 증가하는 경향이었다. 3. 晝間의 採食時間은 331.1분으로부터 576.0분으로 다양한 結果를 보였고 이것은 放牧體系에의하여 보다도 秊節, 牧草量의 多少, 그리고 기상에 의하여 영향을 받았다. 4. 한우는 1일 일출 후, 정오 그리고 오후 3時의 3번의 주 채식행동을 갖고 있었다.