EFFECT OF DIETARY SUPPLEMENTATION WITH OREGANO ESSENTIAL OIL ON PERFORMANCE OF BROILERS AFTER EXPERIMENTAL INFECTION WITH EIMERIA TENELLA

Authors: GIANNENAS, I1; FLOROU-PANERI, P1; PAPAZAHARIADOU, M2; CHRISTAKI, E1; BOTSOGLOU, NA1; SPAIS, AB1

Source: Archives of Animal Nutrition, Volume 57, Number 2, April, 2003 , pp. 99-106(8)

Publisher: Taylor and Francis Ltd

Key:
Free Content - Free Content
New Content - New Content
Subscribed Content - Subscribed Content
Free Trial Content - Free Trial Content

Abstract:

A study was carried out to examine the effect of dietary supplementation of oregano essential oil on performance of broiler chickens experimentally infected with Eimeria tenella at 14 days of age. A total of 120 day-old Cobb-500 chicks separated into 4 equal groups with three replicates each, were used in this study. Two groups, one infected with 5·104 sporulated oocysts of E. tenella and the other not, were given a basal diet and served as controls. The other two groups also infected with E. tenella were administered diets supplemented with oregano essential oil at a level of 300 mg/kg, or with the anticoccidial lasalocid at 75 mg/kg. Following this infection, survival rate, bloody diarrhoea and oocysts excretion as well as lesion score were determined. Throughout the experimental period of 42 days, body weight gain and feed intake were recorded weekly, and feed conversion ratios were calculated. Two weeks after the infection with E. tenella supplementation with dietary oregano oil resulted in body weight gains and feed conversion ratios not differing from the non-infected group, but higher than those of the infected control group and lower than those of the lasalocid group. These parameters correspond with the extent of bloody diarrhoea, survival rate, lesion score and oocyst numbers and indicated that oregano essential oil exerted an anticoccidial effect against E. tenella, which was, however, lower than that exhibited by lasalocid.

Keywords: Oreganum vulgare; Essential oil; Coccidiosis; Eimeria tenella; Lasalocid; Feed supplements; Performance; Broilers

Document Type: Research article

DOI: 10.1080/0003942031000107299

Affiliations: 1: Laboratory of Animal Nutrition Faculty of Veterinary Medicine, Aristotle University Thessaloniki Greece 2: Laboratory of Parasitology and Parasitic Diseases Faculty of Veterinary Medicine, Aristotle University Thessaloniki Greece

The full text article is not available for purchase.

The publisher only permits individual articles to be downloaded by subscribers.

Back to top

Key:
Free Content - Free Content
New Content - New Content
Subscribed Content - Subscribed Content
Free Trial Content - Free Trial Content
Share this item with others: These icons link to social bookmarking sites where readers can share and discover new web pages.
Page Help Click here for Page Help
Shopping cart
Tools
Sign in






Need to register?
Sign up here
Text size: A | A | A | A