http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
진동일,양무희 韓國受精卵移植學會 1997 한국동물생명공학회지 Vol.12 No.2
본 연구는 rat에서 PMSG도는 FSH 처리에 의한 과배란 유도가 배란율과 수정란의 질에 미치는 영향을 알아보기 위해 호르몬 처리하고 교미시킨 후 4일령에 난관과 자궁을 세척하여 정상 8-세포기 난자와 비정상 난자를 조사하였고 각 처리에서 채란된 난자 중에 정상난자를 골라 체외 배양하여 발육율을 비교 평가하였다. 미성숙 rat에서는 평균19.1개의 수정란이 채취되었으며 성숙rat에서는 14.2개가 채취되었고 미성숙 rat에서는 성숙 rat에 비해 더
이유자돈의 실험적 enterotoxigenic Escherichia coli K88 감염에 의한 설사증에 대한 박테리오파지의 예방과 치료에 대한 효능 평가
김성재 ( Sung Jae Kim ),김진동 ( Jin Dong Kim ),양시용 ( Si Yong Yang ),김남희 ( Nam Hee Kim ),이창희 ( Chang Hee Lee ),양돈식 ( Don Sik Yang ),한정희 ( Jeong Hee Han ) 한국가축위생학회 2011 韓國家畜衛生學會誌 Vol.34 No.4
Colibacillosis in pigs remain a major swine industry bruden worldwide. Although some progress has been made in treating collibacillosis in pigs by using biosecurity and antimicrobials, it still remain a considerable problem. The use of host-specific bateriophages as a biocontrol is one possible alternative. The purpose of this study was to evaluate the effect of bacteriophage against enterotoxigenic Escherichia coli (ETEC) K88 infection in piglets. Twenty-eight piglets were randomly divided into four groups and each group was allocated with 7 pigs. Group B, C and D were inoculated with 5 ml of ETEC K88 (1×108 CFU/ml) per head of piglet via oral. Group C and D were fed with bacteriophages (Group C, 1.0×106 PFU/g; Group D, 1.0×108 PFU/g; CJ CheilJedang Corp., Korea) orally as treatment. In piglets administrated bacteriophages and challenged with ETEC K88 (Group C and D), Clinical signs and the growth performance were improved and antibody titers were maintained low level compared with piglets challenged with ETEC K88 (Group B, P<0.05). Group B were shown high pH in the alimentary tracts compared with other piglets (P<0.05). In quantitative analysis by real-time PCR, the results of Group C and D were lower than those Group B in faecal and intestinal samples (P<0.05). Severe villus atrophy and crypt hyperplasia were observed in Group B consequently V/C ratio increased, compared with other piglets. These results indicate that feeding with bacteriophage has effect to prevent ETEC K88 infection in piglets and suggest that use of bacteriophage can be considered a valid antibiotic alternative.