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Timothy 초지에서 고정방목과 윤환방목간의 한우에 의한 목초이용율과 증체량 비교시험
이인덕 ( I . D . Lee ) 한국축산학회 1981 한국축산학회지 Vol.23 No.2
Two grazing systems-continuous and rotational-were compared on herbage utility and body weight gain in a timothy parture at the Taekwanryung area by the 13 Korean native heifer from 1978 to 1979. The results obtained were summarized as follows: 1. In dry matter yield per ha, non significant differences (P$gt;0.05) was found between two systems, however, the rotational grazing tended to be clearly increased compared to continuous grazing. 2. In total haerbage consumption per ha, the rotational grazing was significantly increased by 17% (P$gt;0. 05) compared to continuous grazing, whereas, and average herbage consumption per head, per day was highered in continuous grazing. 3. In utilization ratio of herbage, the rotational grazing was increased by 8.4 compared to continuous grazing. 4. In liveweight gain per ha, the rotational grazing was significantly increased by 13% (P$lt;0.05) compared to continuous grazing, whereas, the liveweight gain per hear, per day was slightly increased in continuous grazing. 5. In sward composition of ladino clover in timothy pasture, the continuous grazing was slightly increased than rotational grazing and also it tended to be increasing as grazing year advanced.