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제주한우의 사양관리와 번식상황이 격년분만에 미치는 영향 2 . 제주한우의 사사기간 중 사료급여상황 및 우체중변화에 관한 조사연구
김문철,김중계,김승찬 ( Monn chul Kim,Jung Key Kim,Seung chan Kim ) 한국축산학회 1985 한국축산학회지 Vol.27 No.4
To investigate the effect of giving different feeds, during the winter, 412 Cheju native and cross bred cows and heifers housed in villages were studied. 1. Results showed no appreciable difference amongst the 5 villages feeding different foods during the winter period. Percentage of farms feeding various brans, over 1㎏ per day, was 4.8%; a small quantity (0.5㎏) of various brans was fed daily to 46.6% and those feeding only natural hay, 48.6% 2. The number of villages feeding various braes is increasing and those feeding hay decreasing. Cattle weights decreased by 20-30㎏ monthly per head during the winter feeding period (Jan: Apr.) but by May increased in the range of 10-20㎏ per head with arrival of the new grass. 3. Comparison of monthly body weight changes of Cheju native cows and cross breds, Brahman cross breds showed the least body weight changes during winter while native and Santa cross bred cows the weight changes were considerable.