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볏짚 가공사료의 개발을 위한 연구 1 . 육성우와 착유우 ( 搾乳牛 ) 에 대한 볏짚가공사료의 사료적 가치에 관한 연구
한인규,남두석,최윤재,오대균,김창원,배동호,맹원재 ( I . K . Han,D . S . Nam,Y . J . Choi,D . K . Oh,C . W . Kim,D . H . Bae,W . J . Maeng ) 한국축산학회 1983 한국축산학회지 Vol.25 No.3
This experiment was conducted to estimate the effects of NaOH treatment with or without pelleting the rice straw for Holstein heifers and lactating cows through feeding trials for 105 days. For two feeding trials, 20 heifers weighting approximately 283 ㎏ and 20 lactating cows producing 20.5 ㎏ of milk and weighing 539 ㎏ on the average were divided 4 groups i.e., control group (raw rice straw chopped in 5 ㎝), 1% NaOH treated group, 3.5% NaOH treated pellet A group (1.7-1.8 ㎝ in diameter and 4-5 ㎝ in length) and 3.5% NaOH treated pellet B group (2.4 ㎝-2.5 ㎝ in diameter and 3.5 ㎝ in length). The results obtained were summarized as follows. 1. In heifer, the average daily gain (ADG), the average daily rice straw intake (ADRSI), and the total daily feed intake (TDFI), respectively, for the various groups were as follows (1) 0.46, 0.89, 6.05 ㎏ (2) 0.49, 1.01, 6.20 ㎏, (3) 0.64, 1.84, 7.19 ㎏, (4) 0.56, 1.84, 7.10 ㎏. Significant differences were noted in ADG or TDFI (p$lt;0.05) and ADRSI (p$lt;0.01). 2. In lactating cow, for the respective treatments, milk production amounted to 14.67, 16.29, 16.52 and 17.84 ㎏; fat content in milk was 3.93, 3.72, 4.09 and 3.68%. However, no statistical differences were shown among groups. Total daily feed intake and the daily rice straw intake were the same tendency to milk production.
자돈에 (仔豚) 있어서 혈장단백 (血漿蛋白) 대용제 ( Probline ) 의 급여효과
김대환(D . H . Kim),엄재상(J . S . Um),남두석(D . S . Nam),백인기(I . K . Paik) 한국축산학회 1996 한국축산학회지 Vol.38 No.4
This study was conducted to evaluate the effect of replacing spray dried porcine plasma protein with Probline^ⓡ the performance of weanling pigs. Ninety-six weaned piglets at four weeks of age on average were assigned to one of four dietary treatments; 6% plasma protein(T₁), 4% plasma protein and 2% Probline^ⓡ(T₂), 2% plasma protein and 4% Probline^ⓡ(T₃), and 6% Probline^ⓡ(T₄). All diets were formulated to have iso-caloric and iso-nitrogen levels and were fed to pigs for four weeks. Replacing plasma protein with Probline^ⓡ tended to decrease average daily gain (linear effect; p$lt;0.12) and significantly increased feed/gain (linear effect; p$lt;0.05), but no significant differences were observed in each t-test result between T₁ and T₂ or T₃. Concentration of IgG in serum increased in a linear (p$lt;0.01) fashion as the level of Probline^ⓡ increased in the diet. In conclusion, the result of this trial indicates that one third or two thirds of plasma protein in piglet diet can be replaced with Probline^ⓡ without a significant influence on the performance of weanling pigs.