Monensin이 反芻動物 第一胃內 微生物과 그 活性에 미치는 影響에 關한 硏究 = Effects of Monensin on the Ecosystem of Rumen Microbes and their Activity in Ruminant
저자
발행기관
영남대학교 자원문제연구소(The Institute of Resource Development Yeungnam University)
학술지명
권호사항
발행연도
1983
작성언어
Korean
KDC
321.305
자료형태
학술저널
수록면
15-39(25쪽)
제공처
소장기관
The present experiments were conducted to determine the effect of feeding monensin on rumen bacterial flora and protozoal fauna, on bacterial enzyme activity involving amylase and urease, on ruminal pH and volattile fatty acids.
Nine Korean native goats averaging 15.6 kg of body weight were randomly alloted to the diets supplemeted with monensin at the level of 0, 30 and 60ppm.
Alters 3 weeks adaptation period the animals were fed the experimental diets. Ruminal fluids were collected and examined just before feeding, and 2, 4, 6 and 10 hrs after feeding on days 0, 7, 14, 28, and 42.
1. The total number of ruminal protozoa was markedly decreased with monensin diets from the 7th to 28th day of the experimental period, although it appeared to be recovered gradually towards the end of experiments.
However, a significant difference (p<.05) among treatments could be noted in the total number of ruminal protozoal throughout the experimental period.
2. A total of 20 protozoal species were detected throughout the period: 17 species in Ophryoscolacidae, 3 species in Isotrichide.
The number of those was decreased by mnonensin diets, so that the protozal composition of monensin groups was simpler than that of the control.
3. The protozoal fluctuation pattern was changed by the monensin treatment, and the fluctuation of each species consisted of the protozoal composition was varied according to not only species, but also treatments.
The counts of protozoa of Holctricha order were appeared to be increased by monensin treatments while no significant differences were noted in counts of protozoa of Spirotricha-order except Eudiplodinium species shown slight increase number.
4. In the total number of ruminal bacteria, nonsignificant difference (p>.05) was observed throughout the experimental period.
5. Fourteen different kinds of the ruminal bacteria types were classified by means of
morphology and Gram·stain reaction. In the total number of bacterial types, nonsignifi-cant difference (p> .05) was observed among treatments.
6. The bacterial fluctuation pattern was changed by the monensin treatment, and the fluctuation of each bacterial type consisted of the bacterial composistion was varied according to bacterial types and monensin levels. The total numbers of Gram-negative bacteria increased(15.78~16.41%) with monensin treatments, while the numbers of Gram-positive bacteria decreased (69.65~73.09%) throughout the experimental period.
7. Amylase activity in ruminal fluids of the monensin diet tend to be increased fromt he 7th to 27th or 42nd day of the experimental period : although no significant difference(p) .05) in amylase activity was noted among treatments.
8. Urease activity in ruminal fluids of the 30 ppm diet appeared to be increased from the 7th to 28th day of the experiod, the 60 ppm diet tend to be decreased from the 7th to the end of the experiment. However, no significant difference(p> .05) was observed between the 30 ppm and control group, and the 60 ppm group was significant from the other two groups.
9. In the ruminal pH, values nosignificant difference (p> .05) was found among treat-ments throughout the experimental period.
10. The total rumial VFA concentration was found not to be affected by the monensin treatments.
11. The molar portion of acetate and butyrate in rumen fluids were reduced(p <.06) by monensin diets, propionate, however, increased(p <.05) from the 7th to the end of the-experirnental period. The butyrate was significantly decreased at the 60 ppm level. Non-significant difference (p> .05) was observed in isovalerate and valerate.
12. A significant difference(p <.05) in the average ratio acetate to propionate between 60 ppm level and either control or 30 ppm was observed.
서지정보 내보내기(Export)
닫기소장기관 정보
닫기권호소장정보
닫기오류접수
닫기오류 접수 확인
닫기음성서비스 신청
닫기음성서비스 신청 확인
닫기이용약관
닫기학술연구정보서비스 이용약관 (2017년 1월 1일 ~ 현재 적용)
학술연구정보서비스(이하 RISS)는 정보주체의 자유와 권리 보호를 위해 「개인정보 보호법」 및 관계 법령이 정한 바를 준수하여, 적법하게 개인정보를 처리하고 안전하게 관리하고 있습니다. 이에 「개인정보 보호법」 제30조에 따라 정보주체에게 개인정보 처리에 관한 절차 및 기준을 안내하고, 이와 관련한 고충을 신속하고 원활하게 처리할 수 있도록 하기 위하여 다음과 같이 개인정보 처리방침을 수립·공개합니다.
주요 개인정보 처리 표시(라벨링)
목 차
3년
또는 회원탈퇴시까지5년
(「전자상거래 등에서의 소비자보호에 관한3년
(「전자상거래 등에서의 소비자보호에 관한2년
이상(개인정보보호위원회 : 개인정보의 안전성 확보조치 기준)개인정보파일의 명칭 | 운영근거 / 처리목적 | 개인정보파일에 기록되는 개인정보의 항목 | 보유기간 | |
---|---|---|---|---|
학술연구정보서비스 이용자 가입정보 파일 | 한국교육학술정보원법 | 필수 | ID, 비밀번호, 성명, 생년월일, 신분(직업구분), 이메일, 소속분야, 웹진메일 수신동의 여부 | 3년 또는 탈퇴시 |
선택 | 소속기관명, 소속도서관명, 학과/부서명, 학번/직원번호, 휴대전화, 주소 |
구분 | 담당자 | 연락처 |
---|---|---|
KERIS 개인정보 보호책임자 | 정보보호본부 김태우 | - 이메일 : lsy@keris.or.kr - 전화번호 : 053-714-0439 - 팩스번호 : 053-714-0195 |
KERIS 개인정보 보호담당자 | 개인정보보호부 이상엽 | |
RISS 개인정보 보호책임자 | 대학학술본부 장금연 | - 이메일 : giltizen@keris.or.kr - 전화번호 : 053-714-0149 - 팩스번호 : 053-714-0194 |
RISS 개인정보 보호담당자 | 학술진흥부 길원진 |
자동로그아웃 안내
닫기인증오류 안내
닫기귀하께서는 휴면계정 전환 후 1년동안 회원정보 수집 및 이용에 대한
재동의를 하지 않으신 관계로 개인정보가 삭제되었습니다.
(참조 : RISS 이용약관 및 개인정보처리방침)
신규회원으로 가입하여 이용 부탁 드리며, 추가 문의는 고객센터로 연락 바랍니다.
- 기존 아이디 재사용 불가
휴면계정 안내
RISS는 [표준개인정보 보호지침]에 따라 2년을 주기로 개인정보 수집·이용에 관하여 (재)동의를 받고 있으며, (재)동의를 하지 않을 경우, 휴면계정으로 전환됩니다.
(※ 휴면계정은 원문이용 및 복사/대출 서비스를 이용할 수 없습니다.)
휴면계정으로 전환된 후 1년간 회원정보 수집·이용에 대한 재동의를 하지 않을 경우, RISS에서 자동탈퇴 및 개인정보가 삭제처리 됩니다.
고객센터 1599-3122
ARS번호+1번(회원가입 및 정보수정)