http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : 오세정(Se Jeong Ohh) (검색결과 1 건)
- 무료
- 기관 내 무료
- 유료
-
Broiler의 鷄種과 飼料의 營養水準間의 相互作用에 관한 硏究
吳鳳國,吳世正,韓成郁 서울大學校 農科大學 1978 서울대농학연구지 Vol.3 No.2
This experiment was carried out to investigate the interaction between broiler strains and nutrition levels, and the performance of four broiler strains such as Han Hyup 603, Hubbard, Anak and Pilch when they were fed by four different nutrition levels(High protein and energy; HP. HE, Medium protein and energy; MP. ME, Low protein and energy; LP. LE, and Low low protein and energy; LLP. LLE.) The data used in this study were obtained from a total of 1200 broiler type chicks in Poultry Performance Testing Station, Korean Poultry Association from June 16, to August 11, 1978. Differences of all characters among four nutrition levels were significant except viability and carcass rate. HP. HE and MP. ME treatments showed nearly the same performances in body weight, feed efficiency and point spread but they were significantly superior to those of LP. LE and LLP. LLE. There were not significant differences among four strains in feed efficiency and viability but other characters, body weight, point spread and carcass rate were observed that the performance of the best strain B was significantly superior to strain D but it was not recognized significance compared with strain A, C in the result of statistical analysis. In the interaction between strains and nutrition levels, body weight at high and medium levels showed significantly differences but at low low nutrition levels were nearly same among four strains. Therefore this study demonstrated that comparision of body weights between strains should be performed at medium nutrition level or above. Also point spread calculated as index of body weight and feed efficiency was observed that strain B at low nutrition level is excellently higher than other strains and there were little differences at low low nutrition level among all strains. It was found that little differences between performances of high and medium levels seemed to be occured as the reason of high fat addition for energy source to high nutrition feed, and in general superior strain showed good performance at all the nutrition levels in all characters but in body weight and point spread there were significantly different response with different nutrition level. The most superior strain B among four strains earned the most profit per bird. Although performances of high and medium nutrition levels were nearly the same, medium nutrition level also showed the most profit because the feed cost of high nutrition level was higher than that of medium nutrition level.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
