| 饲粮维生素A添加水平对7～12月龄梅花鹿生长性能、血清生化指标及初角茸生长的影响 |
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| 引用本文： | 张婷,王晓旭,王卓,李仁德,孙伟丽,鲍坤,钟伟,李光玉.饲粮维生素A添加水平对7～12月龄梅花鹿生长性能、血清生化指标及初角茸生长的影响[J].动物营养学报,2017,29(9). |
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| 作者姓名： | 张婷 王晓旭 王卓 李仁德 孙伟丽 鲍坤 钟伟 李光玉 |
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| 作者单位： | 中国农业科学院特产研究所,吉林省特种经济动物分子生物学省部共建实验室,长春 130112 |
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| 基金项目： | 中国农业科学院科技创新工程，吉林省重大科技攻关专项 |
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| 摘 要： | 本试验旨在研究饲粮维生素A添加水平对7~12月龄梅花鹿生长性能、血清生化指标及初角茸生长的影响。选取40只7月龄平均体重为(39.64±4.10)kg的健康雄性梅花鹿,随机分成4组,每组10个重复,每个重复1只,分别饲喂在基础饲粮(含5 mg/kgβ-胡萝卜素)中添加0(对照组)、2 500、5 000和10 000IU/kg维生素A的试验饲粮。试验期从7月龄开始至12月龄结束。结果表明:1)饲粮维生素A添加水平对梅花鹿生长性能无显著性影响(P0.05)。2)与对照组相比,饲粮添加2 500、5 000IU/kg维生素A显著提高梅花鹿血清免疫球蛋白A(IgA)含量、总超氧化物歧化酶(T-SOD)活性(P0.05),饲粮添加2 500、5 000、10 000IU/kg维生素A显著提高谷胱甘肽过氧化物酶(GSH-Px)活性(P0.05),饲粮维生素A添加水平对血清免疫球蛋白G(IgG)、免疫球蛋白M(IgM)、丙二醛(MDA)、睾酮(T)及雌二醇(E2)含量无显著性影响(P0.05)。3)5 000IU/kg维生素A添加组初角茸干茸重显著高于对照组(P0.05),但与其他2组差异不显著(P0.05)。由此得出,在本试验条件下,适量添加维生素A能够增强7~12月龄梅花鹿免疫和抗氧化功能,提高初角茸干茸重。7~12月龄梅花鹿饲喂以玉米和苜蓿草粉为主的饲粮时,饲粮维生素A适宜添加水平为2 500~5 000IU/kg。
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| 关 键 词： | 梅花鹿 维生素A 生长性能 血清生化指标 初角茸 |
Effects of Dietary Supplemental Level of Vitamin A on Growth Performance,Serum Biochemical Indictors and First Antler Growth of 7-to 12-Month-Old Sika Deer (Cervus nippon) |
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| ZHANG Ting,WANG Xiaoxu,WANG Zhuo,LI Rende,SUN Weili,BAO Kun,ZHONG Wei,LI Guangyu.Effects of Dietary Supplemental Level of Vitamin A on Growth Performance,Serum Biochemical Indictors and First Antler Growth of 7-to 12-Month-Old Sika Deer (Cervus nippon)[J].Acta Zoonutrimenta Sinica,2017,29(9). |
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| Authors: | ZHANG Ting WANG Xiaoxu WANG Zhuo LI Rende SUN Weili BAO Kun ZHONG Wei LI Guangyu |
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| Abstract: | This experiment was conducted to study the effects of dietary supplemental level of vitamin a on growth performance,serum biochemical indictors and first antler growth of 7-to 12-month-old sika deer (Cervus nippon).Forty healthy 7-month-old male sika deer initial body weight: (39.64±4.10) kg] were randomly assigned to 4 groups,and each group contained 10 replicates with 1 deer per replicate.Deer in different groups were fed a basal diet (containing 5 mg/kg β-carotene) supplemented with 0 (control group),2 500,5 000 and 10 000 IU/kg vitamin A,respectively.The experiment was started from 7 to 12 months of age.The results showed as follows: 1) dietary vitamin A supplementation had no significant effects on growth performance of deer (P>0.05).2) Compared with control group,serum immunoglobulin A (IgA) content and total superoxide dismutase (T-SOD) activity were significantly increased by dietary supplementation of vitamin A at 2 500 and 5 000 IU/kg (P<0.05),and serum glutathione peroxidase (GSH-Px) activity was significantly increased by dietary supplementation of vitamin A at 2 500,5 000 and 10 000 IU/kg (P<0.05),while serum contents of immunoglobulin G (IgG),immunoglobulin M (IgM),malondialdehyde (MDA),testosterone (T) and estradiol (E2) were not significantly affected (P>0.05).3) Deer received diet supplemented with 5 000 IU/kg vitamin A had significantly higher dry antler weight compared with control group (P<0.05),but had no significant difference compared with the other two groups (P>0.05).In conclusion,proportional adding of vitamin A can improve immunity and antioxidant capacity,increase dry antler weight of 7-to 12-month-old sika deer under the present experimental conditions.The suitable vitamin A supplemental level is 2 500 to 5 000 IU/kg of diet mainly consist of corn and alfalfa meal. |
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| Keywords: | sika deer vitamin A growth performance serum biochemical indicators first antler growth |
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