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Mosleh, N., Shomali, T., Aghapour Kazemi, H.. (1392). Effect of Zataria multiflora essential oil on immune responses and faecal virus shedding period in broilers immunized with live Newcastle disease vaccines. , 14(3), 220-225. doi: 10.22099/ijvr.2013.1684
N. Mosleh; T. Shomali; H. Aghapour Kazemi. "Effect of Zataria multiflora essential oil on immune responses and faecal virus shedding period in broilers immunized with live Newcastle disease vaccines". , 14, 3, 1392, 220-225. doi: 10.22099/ijvr.2013.1684
Mosleh, N., Shomali, T., Aghapour Kazemi, H.. (1392). 'Effect of Zataria multiflora essential oil on immune responses and faecal virus shedding period in broilers immunized with live Newcastle disease vaccines', , 14(3), pp. 220-225. doi: 10.22099/ijvr.2013.1684
Mosleh, N., Shomali, T., Aghapour Kazemi, H.. Effect of Zataria multiflora essential oil on immune responses and faecal virus shedding period in broilers immunized with live Newcastle disease vaccines. , 1392; 14(3): 220-225. doi: 10.22099/ijvr.2013.1684

Effect of Zataria multiflora essential oil on immune responses and faecal virus shedding period in broilers immunized with live Newcastle disease vaccines

Iranian Journal of Veterinary Research
مقاله 6، دوره 14، شماره 3 - شماره پیاپی 44، 2013، صفحه 220-225    اصل مقاله (113.04 K)
نوع مقاله: Full paper (Original article)
شناسه دیجیتال (DOI): 10.22099/ijvr.2013.1684
نویسندگان
N. Mosleh1؛ T. Shomali* 2؛ H. Aghapour Kazemi3
1Avian Disease Research Center, School of Veterinary Medicine, Shiraz University, Shiraz, Iran
2Department of Basic Sciences, School of Veterinary Medicine, Shiraz University, Shiraz, Iran
3Graduated from School of Veterinary Medicine, Shiraz University, Shiraz, Iran
چکیده
Zataria multiflora essential oil possesses immunomodulatory effects and the present study investigates
its effect on immune responses to live Newcastle disease (ND) vaccines and faecal shedding period of
vaccine strain virus in chickens. One hundred and eighty chickens from both sexes were divided into 6 equal
groups: group 1: unvaccinated, group 2: vaccinated (B1 vaccine followed by La Sota 10 days later), group 3:
vaccinated + levamisole (150 mg/kg/day, orally), groups 4, 5 and 6 were vaccinated and received Z.
multiflora essential oil by SC injections at 0.1, 0.2 and 0.4 g/kg/day dosages, respectively. Levamisole and Z. multiflora essential oil were administered for 10 and 5 consecutive days post B1 vaccination. On days 0, 7, 14, 28 and 35 post booster vaccination (PBV), HI test was performed. Delayed type hypersensitivity (DTH)
test was accomplished on day 14 PBV. Faecal virus shedding was determined during 15 days PBV with 3
day intervals by RT-PCR method. Zataria multiflora essential oil induced a dose-dependent increase in
antibody titers in an extent higher than levamisole as well as a dose-dependent suppression of DTH reaction. Effect of Z. multiflora essential oil at the dosage of 0.1 g/kg on shortening of faecal virus shedding period was exactly the same as levamisole where higher doses demonstrated stronger decrease. In conclusion, Z. multiflora essential oil stimulates humoral immune responses and shortens faecal virus shedding period while suppressing cell-mediated immune responses in chickens vaccinated with live ND vaccines.
کلیدواژه‌ها
Zataria multiflora؛ Immune responses؛ Newcastle disease vaccines؛ Chickens
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