畜牧兽医学报 ›› 2014, Vol. 45 ›› Issue (6): 926-931.doi: 10.11843/j.issn.0366-6964.2014.06.010

• 遗传繁育 • 上一篇    下一篇

Ghrelin对绵羊早期体外胚胎发育的影响

杨燕燕1,2,青格勒2,达来2,张冠华1,彭灿泉1,邵凯2,苏和2,田瑛2,王新奇1,郭延华3,乌达巴拉2,周璇2,曹贵方1*   

  1. (1.内蒙古农业大学 兽医学院,呼和浩特 010018; 2.内蒙古自治区农牧业科学院畜牧研究所,呼和浩特 010031;3.新疆农垦科学院畜牧兽医研究所,石河子 832000)
  • 收稿日期:2014-02-24 出版日期:2014-06-23 发布日期:2014-06-23
  • 通讯作者: 曹贵方,教授,E-mail: guifangcao@126.com
  • 作者简介:杨燕燕(1980-),女,内蒙古赤峰人,助理研究员,博士生,主要从事家畜遗传育种方面的研究,E-mail: swallow_0088@163.com
  • 基金资助:

    国家自然科学基金项目(30860201)

Effects of Ghrelin on the Development of Early Ovine Embryos in vitro

YANG Yan-yan1,2,QING Ge-le2,DA Lai2,ZHANG Guan-hua1,PENG Can-quan1,SHAO Kai2,SU He2,TIAN Ying2,WANG Xin-qi1,GUO Yan-hua3,WU Da-ba-la2,ZHOU Xuan2,CAO Gui-fang1*   

  1. (1.College of Veterinary Medicine,Inner Mongolia Agricultural University,Huhhot 010018, China; 2.Institute of Animal Husbandry,Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences,Huhhot 010031,China; 3.Institute of Animal Husbandry and Veterinary Medicine,Xinjiang Academy of Agricultural and Reclamation Science,Shihezi 832000, China)
  • Received:2014-02-24 Online:2014-06-23 Published:2014-06-23

摘要:

为了探讨Ghrelin对绵羊早期胚胎发育的影响。利用绵羊体外受精技术制备绵羊早期胚胎,并分别将受精胚胎放置在4组培养液中进行发育培养:①梯度添加300、600、1 000、4 000、10 000 ng•mL-1 Ghrelin的培养液;②梯度添加1、10、200、400 ng•mL-1 Ghrelin受体拮抗剂培养液;③含400 ng•mL-1 Ghrelin受体拮抗剂且梯度添加300、1 000、4 000 ng•mL-1 Ghrelin的培养液;④空白对照组。在胚胎受精第2、3、4、5天时观察胚胎发育情况,分别统计绵羊2-细胞、4-细胞、8-细胞和16-细胞胚胎的卵裂率。结果显示:与空白对照组比较,在培养液中添加不同浓度的 Ghrelin的体外受精胚胎的卵裂率均无显著变化(P>0.05);在培养液中梯度添加Ghrelin受体拮抗剂,绵羊2-细胞、16-细胞胚胎的卵裂率无明显变化(P>0.05),但4-细胞、8-细胞胚胎的卵裂率显著降低,且在200、400 ng•mL-1 时差异极显著(P<0.01) ;在含受体拮抗剂且梯度添加Ghrelin组,4-细胞、8-细胞胚胎卵裂率有所恢复,但与空白对照组比较差异显著(P<0.05)。结果表明: Ghrelin对绵羊4-细胞、8-细胞胚胎发育具有促进作用。

Abstract:

In order to investigate the effects of Ghrelin on the development of early ovine embryos.Early ovine embryos were prepared by in vitro fertilization.The fertilized embryos were cultured in four groups of culture medium:①The group of adding gradiently 300,600,1 000,4 000,10 000 ng•mL-1 Ghrelin;②The group of adding gradiently 1,10,200,400 ng•mL-1 Ghrelin receptor antagonist;③The group of containing 400 ng•mL-1 Ghrelin receptor antagonist and adding gradiently 300,1 000,4 000 ng•mL-1 Ghrelin;④The control group.Embryo development was observed on the 2nd,3rd,4th,5th day,and the cleavage rates of ovine embryos were calculated at 2-cell,4-cell,8-cell and 16-cell stages.The results showed that: Compared with control group,ovine embryo cleavage rates had no significant change in the group adding Ghrelin (P>0.05);Embryo cleavage rate had no obvious change at 2-cell,16-cell stages (P>0.05),but decreased significantly at 4-cell,8-cell stages,and extremely significant difference at 200,400 ng•mL-1 in the group adding Ghrelin receptor antagonist (P<0.01);Embryo cleavage rates was recovered slowly on 4-cell,8-cell stages by gradiently adding Ghrelin but still significant difference in the group containing Ghrelin receptor antagonist(P<0.05).These results indicate: Ghrelin promote ovine embryo development at 4-cell and 8-cell stages.

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