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Effects of Natustat supplementation on performance, feed efficiency and intestinal lesion scores in broiler chickens challenged with Eimeria acervulina, Eimeria maxima and Eimeria tenella.

Abstract
The effects of dietary supplementation of Natustat, a proprietary plant derived product (Alltech Inc., KY, USA) and Salinomycin, on performance, feed efficiency and intestinal lesion scores were observed during two Eimeria challenge trials in broiler chickens. In the first trial chickens were challenged with Eimeria sp. via infecting the litter with a known amount of Eimeria oocysts. In the second trial the source of the Eimeria challenge was the litter from the first trial and the same treatment groups were assigned to the same pens as in the initial trial. Birds were placed 55 per pen with seven pens per treatment. Performance parameters were recorded on days 21 and 42 during both trials. Intestinal lesion scores were assessed on days 14 and 21 during Trial 1 and on day 21 during Trial 2. Average weight gain and feed conversion ratios were significantly improved in the Natustat and Salinomycin treatment groups when compared to the non-supplemented infected group. Furthermore, lesion scores were lower on all sampling days in the Natustat and Salinomycin groups when compared to the non-supplemented group. However, only lesions associated with Eimeria tenella were significantly lowered by Natustat and Salinomycin supplementation. Natustat and Salinomycin were equivalent in alleviating the negative performance effects associated with coccidiosis challenge. In summary, Natustat has the potential to be used as a natural alternative to chemotherapeutic drugs for Eimeria control.
AuthorsC F Duffy, G F Mathis, R F Power
JournalVeterinary parasitology (Vet Parasitol) Vol. 130 Issue 3-4 Pg. 185-90 (Jun 30 2005) ISSN: 0304-4017 [Print] Netherlands
PMID15905033 (Publication Type: Clinical Trial, Comparative Study, Journal Article, Randomized Controlled Trial, Research Support, Non-U.S. Gov't)
Chemical References
  • Coccidiostats
  • Pyrans
  • salinomycin
Topics
  • Animals
  • Chickens
  • Coccidiosis (pathology, prevention & control, veterinary)
  • Coccidiostats (therapeutic use)
  • Dietary Supplements
  • Eimeria
  • Eimeria tenella
  • Intestines (pathology)
  • Male
  • Poultry Diseases (prevention & control)
  • Pyrans (therapeutic use)
  • Weight Gain

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