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박테리오파지의 첨가가 한우비육에 미치는 영향

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Alternative Title
Effects of Korean Cow in Accordance with the Level of Bacteriophage added
Abstract
Antibiotics are chemicals that kill or inhibit the growth of bacteria and
are used to treat bacterial infections. They are produced in nature by soil
bacteria and fungi. An antibiotic can also be classified according to the
range of pathogens against which it is effective. Antibiotics take advantage
of the difference between the structure of the bacterial cell and the host's
cell, allowing the host's defense mechanism to fight the infection or kill the
bacteria. However, some antibiotics can be extremely effective against
certain bacteria but may not work to treat other bacteria. That's why it is
important to treat bacteria with the correct antibiotic.
In the 20th century, livestock and poultry producers also incorporated
antibiotics into their comprehensive animal husbandry practices that also
include clean water and nutritious food for their animals, shelter from heat
and cold, vaccinations and medical treatment when needed. The problem
with feeding antibiotics to animals with high doses to treat infections to
"knock out" an infection - may actually trigger some bacteria to become
resistant and creates the perfect environment for antibiotic-resistant bacteria
to multiply and thrive. Another reason for caution: when an antibiotic is administered, it impacts the entire population of bacteria in the body. Clearly,
it is essential that veterinarians exercise their medical judgment and careful
oversight of antibiotic use in livestock and poultry production.
One of the possible replacement options for antibiotics is the use of
bacteriophages as antimicrobial agents. Bacteriophage target individual
strains and species of bacteria. Although bacteria can become resistant to
phages, phage resistance is not nearly as worrisome as drug resistance.
Bacteriophages are very specific to their hosts, so this minimizes the
chance of secondary infections, and also, bacteriophages replicate at the site
of infection where they are mostly needed to lyse the pathogens.
In the area of animal bio-control and agribusiness options, phages have
shown a remarkable success. Phages have been extremely effective at
treating a number of bacterial infections in controlled animal studies,
especially as a bio-control agent in the prevention of food-borne illnesses.
This study was planned to increase beef productivity by utilizing
eco-friendly formulations of bacteriophage and spread environmentally
friendly livestock technical specifications for the axes to provide
environmentally friendly livestock farms and perform to the consumer.
The experiment was planned for 6 months using 30 cattle were divided
into three treatment group and each consisted with 10 cattles. During the
treatment period, conductor grade, hematological properties, antibody immune
serum, fecal microorganisms were surveyed. The result showed the impact
of bacteriophage on the cattle beef. The supplement with bacteriophage in
the feed can increase weight gain and feed conversion ratio significantly
compared with the 0.1% bacteriophage-free sphere apex. Furthermore
impact on blood serum immune antibodies of the beef cattle, IgG and IgA and red blood cell levels have shown higher significantly in bacteriophage
apex. Adequate level of bacteriophage added in Korea cow feed is about
0.1%.
This study showed requirement of safe livestock production technology
for the consumers with environmentally friendly formulations. The key to
successful use of phages in modern scientific, farm, food processing and
clinical applications is to understand the common obstacles as well as best
practices and to develop answers that work in harmony with nature.
Author(s)
김경호
Issued Date
2015
Awarded Date
2016. 2
Type
Dissertation
URI
http://dcoll.jejunu.ac.kr/jsp/common/DcLoOrgPer.jsp?sItemId=000000007495
Alternative Author(s)
Kim, Kyoung-Ho
Department
대학원 동물자원과학과
Advisor
강민수
Table Of Contents
Ⅰ. 서 론 1
Ⅱ. 연구사 2
Ⅲ. 재료 및 방법 5
1) 공시동물 및 실험설계 5
2) 사양관리 6
3) 조사 및 통계분석 7
Ⅳ. 결과 및 고찰 10
1) 사양성적 10
2) 도체성적 13
3) 혈액의 화학적 성상 15
4) 혈중 면역항체 함량 17
5) 분변 미생물 변화 19
Ⅴ. 요 약 21
ABSTRACT 23
참고문헌 26
Degree
Master
Publisher
제주대학교 대학원
Citation
김경호. (2015). 박테리오파지의 첨가가 한우비육에 미치는 영향
Appears in Collections:
Faculty of Biotechnology > Animal Biotechnology
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