| 牛至精油对新生犊牛生长发育和血液免疫的影响 |
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| 引用本文： | 陈昊,刘婷,吴建平,吴宁,何冰,刘立山.牛至精油对新生犊牛生长发育和血液免疫的影响[J].草业科学,2017,34(10). |
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| 作者姓名： | 陈昊 刘婷 吴建平 吴宁 何冰 刘立山 |
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| 作者单位： | 甘肃农业大学动物科学技术学院,甘肃兰州,730070;甘肃省农业科学院,甘肃兰州,730070;甘肃省临洮县华加畜牧科技有限责任公司,甘肃定西,730500 |
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| 基金项目： | 公益性行业(农业)科研专项:北方作物秸秆饲用化利用技术研究与示范，精油代替抗生素对早期断奶犊牛生长性能的研究，牛羊优良种质资源选育与高效循环、品质化生产技术体系，甘肃省典型农区肉牛生产体系优化研究与应用，甘肃省肉牛生产体系要素优化匹配研究 |
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| 摘 要： | 选择40头新生犊牛,按出生日期随机分为试验组和对照组,每组各20头,试验组犊牛精料按40g·t~(-1)的比例添加牛至(Origanum vulgare)精油,旨在研究天然添加剂牛至精油对新生犊牛生长发育和血液免疫的影响。从犊牛出生到70日龄,跟踪研究了两组犊牛生长性能和血液免疫指标。结果表明,随着犊牛生长、发育时间的增加,试验组犊牛体重、体高、体长、胸围、腹围、管围、血清总蛋白、免疫球蛋白G、免疫球蛋白A、免疫球蛋白M以及平均采食量均极显著高于对照组(P0.01),且试验组犊牛腹泻次数极显著降低(P0.01)。由此可见,精料中添加牛至精油有促进犊牛生长发育、增强犊牛免疫力、增加犊牛采食量和降低犊牛腹泻发病率的作用。
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| 关 键 词： | 新生犊牛 牛至精油 生长性能 血液免疫 采食量 腹泻 血清总蛋白 |
Effects of oregano essential oil on growth and hematogenic immunity ofnewborn calves |
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| Chen Hao,Liu Ting,Wu Jian-ping,Wu Ning,He Bing,Liu Li-shan.Effects of oregano essential oil on growth and hematogenic immunity ofnewborn calves[J].Pratacultural Science,2017,34(10). |
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| Authors: | Chen Hao Liu Ting Wu Jian-ping Wu Ning He Bing Liu Li-shan |
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| Abstract: | The objective of this study was to analyze the effects of oregano essential oil,which is a natural additive,on the growth and hematogenic immunity of newborn calves.Fortynewborn calves were selected,and divided into experimental and control groups,in this study,on the basis of their dates of birth,with 20 calves in each group.Oregano essential oil was added to the concentrate for calves in the experimental group ata proportion of 40 g · t-1.Indices of growth performance and hematogenic immunity were tracked,and analyzed in the calves from their birth to 70 days.The results showed that with increase inthe time of the growth and development of thecalves,weight,height,body length,chest circumference,abdominal circumference,pasterncircumference,total serum protein levels,levels of immunoglobulins G,A,and M,and average feed intake were significantly higher in the calves of the experimental group than those in the control group (P＜0.01);the incidence of diarrhea in the calves in the experimental group reduced markedly(P＜0.01).Overall,the study showed that the concentrate with added oregano essential oil could boost the growth,immunity,and feed intake of calves,and reducediarrhea morbidity,which was suggested in the results. |
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| Keywords: | newborn calves oregano essential oil growth performance hematogenic immunity feed intake diarrhea TP |
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