您好，欢迎访问浙江省农业科学院 机构知识库！
浙江省农业科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

The Stimulatory Effect of Cerebral Intraventricular Injection of cNPY on Precocial Feeding Behavior in Neonatal Chicks (Gallus domesticus)

文献类型： 外文期刊

作者： Chen, Guiqian 1 ; Yang, Feifei 1 ; Wu, Taofen 4 ; Jiang, Junfang 1 ; Zhou, Weidong 1 ;

作者机构： 1.Zhejiang Acad Agr Sci, Inst Anim Husb & Vet Sci, Hangzhou 310021, Zhejiang, Peoples R China

2.Jiaxing Univ, Sch Med, Jiaxing 314000, Zhejiang, Peoples R China

3.Lianyungang Biol Engn Specialty Secondary Sch, Lianyungang 222248, Jiangsu, Peoples R China

4.Zhejiang Univ, Coll Anim Sci, Hangzhou 310058, Zhejiang, Peoples R China

5.Zhejiang EBVAC Biotech Co Ltd, R&D Ctr, Hangzhou 310018, Zhejiang, Peoples R China

期刊名称：PLOS ONE （ 影响因子：3.24； 五年影响因子：3.788 ）

ISSN： 1932-6203

年卷期： 2016 年 11 卷 4 期

页码：

收录情况： SCI

摘要： Neuropeptide Y (NPY) is one of the most potent stimulants of food intake in many animals. Most of the supporting evidence for the effects of NPY has been gathered in mammalian species using porcine NPY. To investigate the effects of NPY on precocial feeding initiation in chicks, we firstly used chicken NPY (cNPY) to study its role in food intake and spontaneous activities in 3-day-old male chicks. Food intake was monitored at different times after intracerebroventricular (ICV) injection of cNPY (2.5, 5.0 or 10.0 mu g/10 mu L) and anti-cNPY antibody (anti-cNPY) (1:9000, 1:3000 or 1:1000 in dilution). cNPY given at different doses significantly increased food intake at 30 min, 60 min, 90 min and 120 min after injection. Chicks treated with 5.0 mu g/10 mu L of cNPY showed a maximal 4.48 fold increase in food intake comparing to the control at 30 min. There is still more than 2 fold increase in food intake at 120 min after injection of cNPY. Food intake was significantly inhibited by a single ICV injection of anti-cNPY diluted to 1:9000 (60% inhibition), 1:3000 (92% inhibition), and 1:1000 (95% inhibition) at 30 min with 1:1000 being the maximally effective concentration. The inhibitory effects of anti-cNPY (diluted to 1:9000, 1:3000, 1:1000) at 120 min post ICV injection were 22%, 42% and 46%, respectively. But ICV of anti-cNPY (1: 3000 in dilution) did not block the orexigenic effect of 2.5 mu g/10 mu L of cNPY. ICV injection of different concentrations of cNPY increases locomotor activity in a dose-dependent manner while ICV antic-NPY greatly decreased the distance moved by each chick compared to control groups. Taken together, our results demonstrated that cNPY has a promoting effect on chick food intake and locomotor activity, and that endogenous cNPY might play a positive role in regulating precocial feeding behavior in newly hatched chicks.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：浙江省农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台