■在动物生产中使用传统药物来预防病毒性疾病已在全世界范围内实施。草药提取物具有可以改善鸡身体性能的有机物质。
■本研究旨在评估百里香或人参油在免疫调节方面的作用,抗病毒,和生长促进剂特性。
■将二百四十只一天大的肉鸡分为以下八个相等的组:第1组;未接种和未治疗以及第2组;新城疫病毒(NDV)接种和未治疗。第3组和第4组的禽类用百里香油(200mg/l饮用水,持续12小时/天)处理,不接种或接种NDV疫苗。第5组和第6组的鸟类用人参油(200mg/l的饮用水,每天12小时)治疗,不接种或接种NDV疫苗。第7组和第8组的禽类用人参油(100mg/l饮用水)和百里香油(100mg/l饮用水)的组合处理12小时/天。在生命的第35天,所有实验组的禽类均肌内给予0.1ml含106.3EID50/ml的毒力基因型VIIdNDV菌株悬浮液。
■将人参和百里香油各自单独或同时给予接种疫苗或未接种疫苗的鸟类引起身体性能参数的显著改善。百里香和人参各自单独或同时给予接种疫苗的禽类(Gp4、6和8)在21日龄时诱导更高的血凝抑制(HI)滴度为6、7.3和6.3log2,28日龄为6.7、7.6和7log2,35日龄为7、8和6.8log2,分别。用vNDV基因型VII攻击导致在所有实验组中攻击后10天NDV特异性HI-Ab滴度的增加。此外,百里香,人参油,或它们的组合提高了对接种疫苗的鸟类的死亡率的保护;通过100%,100%,90%,分别,相比,在NDV攻击后,仅接种疫苗的鸟类的死亡率为80%。此外,用百里香处理的NDV疫苗接种的鸟类;人参或其组合在气管和泄殖腔拭子中均显示出病毒的阴性检测,接受油的未接种组显示气管和泄殖腔拭子中vNDV脱落的改善。
■可以得出结论,对肉鸡施用百里香和人参精油可以提高生产性能参数,刺激体液免疫,并保护免受vNDV感染。
UNASSIGNED: The use of traditional medicine against viral diseases in animal production has been practiced worldwide. Herbal extracts possess organic substances that would improve chicken body performance.
UNASSIGNED: The current study was designed to evaluate the effect of either
thyme or ginseng oil in regard to their immune-modulatory, antiviral, and growth promoter properties.
UNASSIGNED: Two hundred and forty-one-day-old broiler chicks were allocated into eight equal groups as the following: group 1; nonvaccinated and nontreated and group 2; Newcastle disease virus (NDV) vaccinated and nontreated. Birds of groups 3 and 4 were treated with
thyme oil (200 mg/l of drinking water for 12 hours/day) without or with NDV vaccination. Birds of groups 5 and 6 were treated with ginseng oil (200 mg/l of drinking water for 12 hours/day) without or with NDV vaccination. Birds of groups 7 and 8 were treated with a combination of ginseng oil (100 mg/l of drinking water) and thyme oil (100 mg/l of drinking water) for 12 hours/day. On the 35th day of life, birds in all the experimental groups were given 0.1 ml of a virulent genotype VIId NDV strain suspension containing 106.3 EID50/ml intramuscularly.
UNASSIGNED: Administration of ginseng and
thyme oils each alone or simultaneously to birds either vaccinated or nonvaccinated elicited a significant improvement in body performance parameters. Administration of thyme and ginseng each alone or concurrently to vaccinated birds (Gp 4, 6, and 8) induced a higher hemagglutination inhibition (HI) titer of 6, 7.3, and 6.3 log2 at 21 days of age, 6.7, 7.6, and 7 log2, at 28 days of age and 7, 8, and 6.8 log2 at 35 days of age, respectively. Challenge with vNDV genotype VII led to an increase in the NDV-specific HI-Ab titers 10 days post challenge in all the experimental groups. In addition,
thyme, ginseng oils, or a combination of them improved the protection from mortality in vaccinated birds; by 100%, 100%, and 90%, respectively, compared with 80% protection from mortality in vaccinated-only birds post-NDV challenge. Moreover, NDV-vaccinated birds treated either with
thyme; ginseng or their combination showed negative detection of the virus in both tracheal and cloacal swabs and nonvaccinated groups that received oils showed improvement in vNDV shedding in tracheal and cloacal swabs.
UNASSIGNED: It could be concluded that the administration of thyme and ginseng essential oils to broilers can improve productive performance parameters, stimulate humoral immunity against, and protect from vNDV infection.