title: Anticoccidial effect of supplemental dietary Galla Rhois against infection with Eimeria tenella in chickens.
abstract: The anticoccidial effects of Galla Rhois (GR) powder, which contains a major tannin-derived component of 52.7%, were evaluated in chickens following oral infection with Eimeria tenella. One-day-old chickens were assigned to five groups (control, unsupplemented, GR 0.5% supplemented [GRS 0.5%], GRS 1.0% [GRS 1.0%] and salinomycin supplemented [SS]). The chickens were fed a standard diet supplemented or not supplemented with GR or salinomycin for 10 days prior to infection. The birds received the supplemented diets continuously until 10 days post infection. The effects of GR on a E. tenella infection were evaluated by several parameters, including body weight gain, feed intake, oocyst excretion, bloody diarrhoea, and lesion scores. Infected chickens on the GRS and SS diets had a relatively moderate body weight loss (reduction ratio < 15%) and improved feed conversion. GRS and SS chickens produced significantly fewer faecal oocysts (P<0.05) and showed milder bloody diarrhoea compared with the E. tenella-infected control group. Furthermore, the lesion scores of both the GRS 0.5% and GRS 1.0% groups were significantly lower than the scores of the unsupplemented group on day 5 post infection. The lesion scores for the GR groups were similar to the scores for the SS group. In conclusion, this study suggests that GR appears to be as efficacious as salinomycin against E. tenella infection. GR supplementation leads to a reduction in infected chickens, although infected chickens are still affected compared with the uninfected control group. GR-based diets may be beneficial in preventing or treating coccidial infections in poultry.
authors: College of Veterinary Medicine, Gyeongsang National University, Jinju 660-701, Republic of Korea.
authors: Jin Ju
authors: JJ
authors: Lee
authors: Dong Hyeok
authors: DH
authors: Kim
authors: Jeong Ju
authors: JJ
authors: Lim
authors: Dae Geun
authors: DG
authors: Kim
authors: Wongi
authors: W
authors: Min
authors: Gon Sup
authors: GS
authors: Kim
authors: Hu Jang
authors: HJ
authors: Lee
authors: Man Hee
authors: MH
authors: Rhee
authors: Hyun
authors: H
authors: Park
authors: Sam Churl
authors: SC
authors: Kim
authors: Hong Hee
authors: HH
authors: Chang
authors: Suk
authors: S
authors: Kim
mesh_terms: D000821:Animal Feed; D000818:Animals; D001835:Body Weight; D002645:Chickens; D003048:Coccidiosis / Q000188:drug therapy / Q000469:parasitology / Q000517:prevention & control / Q000662:veterinary*; D003049:Coccidiostats / Q000494:pharmacology* / Q000627:therapeutic use; D003967:Diarrhea / Q000662:veterinary; D019587:Dietary Supplements; D016786:Eimeria tenella / Q000187:drug effects*; D005243:Feces / Q000469:parasitology; D005260:Female; D008297:Male; D033661:Oocysts; D010936:Plant Extracts / Q000494:pharmacology* / Q000627:therapeutic use; D011201:Poultry Diseases / Q000188:drug therapy* / Q000469:parasitology / Q000517:prevention & control; D011714:Pyrans / Q000494:pharmacology / Q000627:therapeutic use; D013047:Specific Pathogen-Free Organisms; D015430:Weight Gain; D015431:Weight Loss; D000095662:Polyether Polyketides
chemical_list: D003049:Coccidiostats; D010936:Plant Extracts; D011714:Pyrans; C010327:salinomycin; D000095662:Polyether Polyketides