Field evaluation of Enterotoxigenic Escherichia coli-specific bacteriophage (PhiCJ19) as a feed additive.
- Author:
Anna YOO
1
;
Seung Bin CHA
;
Min Kyoung SHIN
;
Hong Tae PARK
;
Hyo Sil SEO
;
Jae Won KIM
;
Han Sang YOO
Author Information
1. College of Veterinary Medicine, Seoul National University, Seoul 151-742, Korea. yoohs@snu.ac.kr
- Publication Type:Original Article
- Keywords:
bacteriophage;
enterotoxigenic Escherichia coli;
feed additive;
field efficacy
- MeSH:
Bacteriophages;
Body Weight;
Diarrhea;
Enterotoxigenic Escherichia coli;
Escherichia;
Weaning
- From:Korean Journal of Veterinary Research
2013;53(2):83-88
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
Field efficacy of enterotoxigenic Escherichia coli-specific phage (PhiCJ19) as a feed additive was evaluated in weaning piglets. Fifty-four piglets at 3~4 weeks old were allocated in three different groups and two of them were fed with bacteriophage at different concentrations (10(6) PFU/kg feed and 10(8) PFU/kg feed, respectively) for 30 days. Body weight and feed intake were measured at 10 days interval and body condition and fecal score were inspected every day. Based on the measurement, feed conversion rate (FCR) and average daily gain (ADG) of each group during 30 days were analyzed. The analysis suggests that the bacteriophage may help the improvement of FCR and ADG at 10(8) PFU/kg of bacteriophage feeding group in 30 days. A result from analysis of fecal score indicates that the bacteriophage also may help to relieve the intermittent diarrhea in post-weaning stage. Those results suggest that bacteriophage might help the growth of piglets in post-weaning stage.
