首页|饲粮中核黄素添加水平对生长獭兔肉品质、毛囊发育和免疫性能的影响

饲粮中核黄素添加水平对生长獭兔肉品质、毛囊发育和免疫性能的影响

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本试验旨在研究饲粮中核黄素添加水平对生长獭兔肉品质、毛囊发育和免疫性能的影响、选择体重相近的3月龄獭兔160只,随机分为4组,每组40个重复,每个重复1只兔.各组分别饲喂在基础饲粮中添加0(对照)、3、6和12 mg/kg核黄素的饲粮.预试期7d,正试期53 d.结果表明:与对照组相比,饲粮中添加6、12 mg/kg核黄素显著降低了獭兔肌肉的滴水损失(P＜0.05),饲粮中添加3、6、12 mg/kg核黄素显著提高了獭兔皮肤中总毛囊密度(P＜0.05),饲粮中添加3、6 mg/kg核黄素显著提高了獭兔皮肤中初级毛囊密度(P＜0.05),饲粮中添加6、12 mg/kg核黄素显著提高了獭兔皮肤中次级毛囊密度(P＜0.05),饲粮中添加3、6 mg/kg核黄素显著降低了獭兔皮肤中次级毛囊密度/初级毛囊密度(P＜0.05).饲粮中核黄素添加水平对獭兔的胸腺重、胸腺指数及血清免疫球蛋白G、免疫球蛋白A、白细胞介素-2含量影响显著(P＜0.05),且均随着饲粮中核黄素添加水平的升高呈先增加后降低的趋势,并均在6 mg/kg添加组中达到最大值,显著高于对照组(P＜0.05).由此可见,3～5月龄生长獭兔饲粮中核黄素适宜添加水平为6 mg/kg(实际测定饲粮中核黄素水平为8.35 mg/kg).
Effects of Dietary Riboflavin Supplemental Level on Meat Quality, Hair Follicle Development and Immune Performance of Growing Rex Rabbits
This experiment was conducted to investigate the effects of dietary nicotinic acid supplemental level on meat quality,hair follicle development and immune performance of growing Rex rabbits.A total of 160 three-month-old Rex rabbits with similar body weight were randomly divided into 4 groups with 40 replicates per group and 1 rabbit per replicate.Rabbits in the control group were fed a basal diet,and the others in the experimental groups were fed the experimental diets supplemented with 3,6 and 12 mg/kg riboflavin,respectively.The pre-test period lasted for 7 days,and the experimental period lasted for 53 days.The results showed that compared with the control group,dietary supplemented with 6 and 12 mg/kg riboflavin significantly reduced the meat drip loss of Rex rabbits (P＜0.05),dietary supplemented with 3,6 and 12 mg/kg riboflavin significantly increased the skin total hair follicles density of Rex rabbits (P＜0.05),dietary supplemented with 3 and 6 mg/kg riboflavin significantly increased the skin primary hair follicles density of Rex rabbits (P ＜ 0.05),and dietary supplemented with 6 and 12 mg/kg riboflavin significantly increased the skin secondary hair follicles density of Rex rabbits (P＜0.05),and dietary supplemented with 6 and 12 mg/kg riboflavin significantly decreased the ratio of secondary hair follicles density to primary hair follicles density of Rex rabbits (P＜ 0.05).Dietary riboflavin supplemental level significantly affected the thymus weight,thymus index and the content of immunoglobulin G,immunoglobulin A and interleukin 2 in serum of Rex rabbits (P＜0.05),and all the above indices were showed a firstly increase then decrease tendency with dietary riboflavin supplemental level increasing,and got the max value in the 6 mg/kg supplemental group,which significantly higher than those in the control group (P＜0.05).In conclusion,the suitable dietary riboflavin supplement level of growing Rex rabbits aged from 3 to 5 months is 6 mg/kg (measured dietary riboflavin level is 8.35 mg/kg).

Rex rabbitsriboflavinmeat qualityhair follicle developmentimmune performance

刘磊、郑琛、李福昌、孙海涛

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山东农业大学动物科技学院,泰安271018

山东省农业科学院畜牧兽医研究所,济南250100

山东省畜禽疫病防治与繁育重点实验室,济南250100

獭兔 核黄素 肉品质 毛囊发育 免疫性能

现代农业产业技术体系建设专项山东省农业重大应用技术创新课题山东农业大学青年科技创新基金中国博士后科学基金山东农业大学博士后科学基金山东省现代农业产业技术体系特种经济动物创新团队建设项目

CARS-44-B-12015-20162015M580612015-2017SDA1T-21-12

2017

10.3969/j.issn.1006-267x.2017.03.013

动物营养学报
中国畜牧兽医学会

动物营养学报

CSTPCDCSCD北大核心
影响因子：1.297
ISSN：1006-267X
年,卷(期)：2017.29(3)
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