[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[SANET-MG] antibiotic uptake into crops from manure
Published online 12 October 2005
Published in J Environ Qual 34:2082-2085 (2005)
I rather believe that compost would not carry over the antibiotics but
certainly that needs a good study.
Antibiotic Uptake by Plants from Soil Fertilized with Animal Manure
K. Kumara,*, S. C. Guptaa, S. K. Baidoob, Y. Chandera and C. J. Rosena
a Department of Soil, Water, and Climate, University of Minnesota, St.
Paul, MN 55108
b Department of Animal Science and Southern Research and Outreach
Center, University of Minnesota, St. Paul, MN 55108
* Corresponding author (email@example.com)
Received for publication January 24, 2005. Antibiotics are commonly
added to animal feed as supplements to promote growth of food animals.
However, absorption of antibiotics in the animal gut is not complete and
as a result substantial amounts of antibiotics are excreted in urine and
feces that end up in manure. Manure is used worldwide not only as a
source of plant nutrients but also as a source of organic matter to
improve soil quality especially in organic and sustainable agriculture.
Greenhouse studies were conducted to determine whether or not plants
grown in manure-applied soil absorb antibiotics present in manure. The
test crops were corn (Zea mays L.), green onion (Allium cepa L.), and
cabbage (Brassica oleracea L. Capitata group). All three crops absorbed
chlortetracycline but not tylosin. The concentrations of
chlortetracycline in plant tissues were small (2–17 ng g–1 fresh
weight), but these concentrations increased with increasing amount of
antibiotics present in the manure. This study points out the potential
human health risks associated with consumption of fresh vegetables grown
in soil amended with antibiotic laden manures. The risks may be higher
for people who are allergic to antibiotics and there is also the
possibility of enhanced antimicrobial resistance as a result of human
consumption of these vegetables.
To unsubscribe from SANET-MG:
1- Visit http://lists.sare.org/archives/sanet-mg.html to unsubscribe or;
2- Send a message to <firstname.lastname@example.org> from the address subscribed to the list. Type "unsubscribe sanet-mg" in the body of the message.
Visit the SANET-MG archives at: http://lists.sare.org/archives/sanet-mg.html
For more information on grants and other resources available through the SARE program, please visit http://www.sare.org.