Alternatives due to the regulation on antibiotics
The reason of antibiotics usage and
antibiotic effects
As everyone knows, the first mass-produced antibiotic was
penicillin, and as several antibiotics were developed later, it began to be
used in the livestock industry as an antibacterial agent and growth promoter.
Currently, antibiotics are mainly used for increasing productivity rather than
curing diseases. These are some of the positive of antibiotics.
Positive effect of antibiotics
- Animals receiving antibiotics in their feed gain 4% to 5%
more body
weight than animals
that do not receive antibiotics.
- Antibiotics are used for treatment of animal disease and/or
disease
prevention.
- Livestock treated with antibiotics live longer than those
who are not
treated.
- The shelf life is extended for meat, eggs, and dairy
products
when treated with
antibiotics.
The reason for regulating
antibiotics
If antibiotics are used as growth
promoters, they have a positive economic effect. But there are major side effects,
antibiotic-resistant bacteria. Antibiotic-resistant bacteria develop in animals
taking antibiotics. These resistant bacteria can spread to other animals and
eventually infect humans. There are mainly two cases where antibiotics in feed
are a problem. The first is that antibiotics remain in livestock products, and
when humans consume livestock products, pathogens in humans are exposed to
residual antibiotics and become resistant. Another case is that
antibiotic-resistant bacteria remain in livestock products and are transmitted
to humans. In this way, antibiotic-resistant bacteria in humans can spread from
person to person to produce bacteria that are resistant to several drugs, and
the treatment in hospital may not be effective later.
figure1 How antibiotic-resistant
bacteria affect people
https://en.wikipedia.org/wiki/Antibiotic_use_in_livestock#Use_and_regulation_by_country
Antibiotics
regulation countries
The use of antibiotics in livestock is regulated in almost all
countries. In most countries, it can be used under the prescription of a
veterinarian and its use as an AGP is prohibited.
South Korea
South Korea has completely banned the use of AGP since 2011.
China
China is encouraging the reduction of antibiotic use as a
growth stimulator, regulating the market for registration and management of
veterinary antibiotics, and strengthening antibiotic residue testing.
USA
The US has restricted the use of AGP for some medically important
antibiotics since 2013, but does not prohibit the addition of all antibiotics
to feed. (2018)
Europe
Use of antibiotics as growth promoters in animal feeds has
been permitted in the member states of the European Union during the decades.
However, concerns about development of antimicrobial resistance and about
transference of antibiotic resistance genes from animal to human microbiota,
led to withdraw approval for antibiotics as growth promoters in the European
Union since January 1, 2006.
Others
Figure2 Summary of
regulatory actions globally (2015)
+ with exceptions
Source : Globalization and Health, Cornerstone Capital Group
Antibiotic
alternatives
- Bacteriophage
A bacteriophage, also known as a phage, is a virus that can
infect and kill within bacteria. Two major characteristics of bacteriophage are
specificity and safety. Phage only infect their targeted bacterial host and can
kill bacteria without any negative effect on human or animal cell.
- Probiotics
A probiotic is defined as a live microbial feed supplement
which beneficially affects the host animal by improving its intestinal
microbial balance. It can control of specific enteric pathogens and speed up
maturation of immune system.
- ¥â-glucan
¥â-glucan is A polysaccharide of D-glucose
monomers, linked by glycosidic bonds. It can increase immune cell activation
and improved resistance to bacterial infections, growth rate and feed
conversion efficiency.
Reference
https://www1.udel.edu/chem/C465/senior/fall98/AntibiotFood2/pros_cons.html
https://www1.udel.edu/chem/C465/senior/fall97/feed/present.html
https://en.wikipedia.org/wiki/Antibiotic_use_in_livestock#Use_and_regulation_by_country
https://pubmed.ncbi.nlm.nih.gov/17954599/
https://repository.krei.re.kr/bitstream/2018.oak/22645/1/OECD%20%EC%B6%95%EC%82%B0%EB%B6%84%EC%95%BC%20%ED%95%AD%EC%83%9D%EC%A0%9C%20%EC%82%AC%EC%9A%A9%20%ED%98%84%ED%99%A9%20%EB%B0%8F%20%EC%A0%84%EB%A7%9D%EA%B3%BC%20%EA%B2%BD%EC%A0%9C%20%EB%B6%84%EC%84%9D.pdf
http://www.intron.co.kr/sub/investors/insideiNtRON_view.php?bbs_data=aWR4PTIwMDYmc3RhcnRQYWdlPTMwJmxpc3RObz04JnRhYmxlPWNzX2Jic19kYXRhJmNvZGU9aW5zaWRlJnNlYXJjaF9pdGVtPSZzZWFyY2hfb3JkZXI9%7C%7C
http://cornerstonecapinc.com/wp-content/uploads/2015/10/Flagship-Report-Antibiotics-and-Meat-Production-in-US-Final.pdf