中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 饲粮粗蛋白质水平对肉仔鸡肠道PepT1和b~(o,+) AT mRNA表达的影响 甘肃农业大学学报 2016,51 (1) 1-6+12
Position: Home > Articles > Effect of crude protein level of diets on mRNA expression of PepT1 and b~(o,+) AT at intestinal of broilers Journal of Gansu Agricultural University 2016,51 (1) 1-6+12

饲粮粗蛋白质水平对肉仔鸡肠道PepT1和b~(o,+) AT mRNA表达的影响

作  者：
唐德富;刘醒醒;刘国华;郝生燕
单  位：
甘肃农业大学动物科学技术学院;甘肃省农业科学院;农业部饲料生物技术重点开放实验室
关键词：
粗蛋白质水平;肉仔鸡;PepT1;bo,+AT
摘  要：
【目的】研究饲粮粗蛋白质水平对肉仔鸡肠道PepT1和b~(o,+)AT mRNA表达的影响.【方法】选用240只21d‘科宝’肉公鸡,随机分为3组,分别饲喂粗蛋白质水平为16%(16%CP组),18%(18%CP组)和20%(20%CP组)的3种饲粮,每组设8个重复,每个重复10只鸡,42d测定肠道PepT1和b~(o,+)AT mRNA含量.【结果】16%CP组平均日增质量、氮利用率和代谢能值均显著低于其他2组(P<0.05),而料肉比显著高于其他2组(P<0.05).PepT1mRNA表达以空肠最高,十二指肠次之,回肠最低,且空肠显著高于十二指肠和回肠(P<0.05);b~(o,+)AT mRNA表达以回肠最高,十二指肠次之,空肠最低,而回肠显著高于十二指肠和空肠(P<0.05),十二指肠显著高于空肠(P<0.05).随着饲粮粗蛋白质水平的增加,饲粮干物质消化率、粗蛋白质消化率和消化能值均有提高,但未达到显著性水平(P>0.05).肉仔鸡小肠各肠段PepT1mRNA和b~(o,+)AT mRNA的表达均随饲粮粗蛋白质水平的提高而有不同程度的改善,16%CP组PepT1mRNA在十二指肠和空肠的表达显著低于20%CP组(P<0.05),其在空肠的表达显著低于18%CP组(P<0.05).20%CP组b~(o,+)AT mRNA在十二指肠和空肠的表达显著高于16%CP组(P<0.05).【结论】适宜的饲料粗蛋白质水平有利于PepT1和b~(o,+)AT mRNA的表达.
译  名：
Effect of crude protein level of diets on mRNA expression of PepT1 and b~(o,+) AT at intestinal of broilers
作  者：
TANG De-fu;LIU Xing-xing;LIU Guo-hua;HAO Sheng-yan;Key Laboratory of Feed Biotechnology,The Ministry of Agriculture of the People′s Republic of China;College of Animal Science and Technology,Gansu Agricultural University;Gansu Academy of Agricultural Sciences;
关键词：
crude protein level;;broiler;;PepT1;;bo,+AT
摘  要：
【Objective】To assess the effect of dietary crude protein level on mRNA expression of intestinal PepT1 and b~(o,+)AT of broilers.【Method】240male Cobb broilers were selected and assigned randomly into three groups,each with 8repeats and 10 birds for per repeat,and were fed the three diets with the protein level of 16%(16%CP),18%(18%CP)and 20%(20%CP),respectively.【Result】The average daily body weight gain,n utilization rate and metabolizable energy of 16% CP was higher than those of others(P<0.05),but the reverse case for Feed/Gain(P<0.05).There was the highest expression of PepT1 mRNA at jejunum,and the lowest at ileum,as well as jejunum was significantly higher than that at the duode-num and ileum(P<0.05).Bo,+AT mRNA expression was highest in the ileum,and lowest at jejunum,and ileum was significantly higher than that in the duodenum and jejunum(P<0.05),and duodenum was significantly higher than that of the jejunum(P<0.05).With increasing of dietary crude protein level,dry matter digestibility,crude protein digestibility and digestible energy of diets w ere increased as well,but did not reach to the significant level(P>0.05).The expression of PepT1 and b~(o,+)AT mRNA were improved with increasing of dietary crude protein level.The expression of PepT1 mRNA at both duodenum and jejunum of 16%CP was significantly lower than those of 20%CP(P<0.05),and the jejunum of it was significantly lower than that of 18%CP(P<0.05).20%CP group had the higher expression of b~(o,+)AT mRNA in the duodenum and jejunum than that of 16%CP(P<0.05).【Conclusion】The results indicate that the expression of PepT1 and b~(o,+)AT mRNA could be improved by suitable dietary crude protein level.

相似文章

导出引用
计量
文章访问数: 8
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46