Earticle

초록

영어

Predator stress can exert detrimental effects on female mammals, leading to be morphological or behavioral and ultimately come at the cost of survival, growth, body condition, or reproduction. Although there have many studies about predator stress on reproductive output of rodents, however, few talk about the effect of visual or auditory stress to the pregnant female. In this study, we investigated the possible effect of predator stress, visual or visual plus auditory, on the reproduction performance of female mice after non-surgical embryo transfer. The reproductive performance has been assessed for pregnancy rate, implantation rate, gestation length, live pups rate and neonatal birth weight. Moreover, female serum cortisol and progesterone level were measured by using Electrochemiluminescence Immunoassay. Surprisingly, the exposure to predator stress did not lead to a significant change in pregnancy rates of the tested mice. However, the stressed mice showed significant (p<0.05) decrease in implantation rate compared to the control group. Similarly, the live pups rate and neonatal birth weight were significantly lower in the group exposed to cat stress than in the control group. Furthermore, mice exposed to visual plus auditory stress showed significant reduction in gestation length compared to the control mice. Our data showed that predator stress in form of visual plus auditory combined stimuli significantly increased the serum cortisol level. On the other hand, progesterone level did not show any significant variation among different experimental groups. Taken together, our findings imply that predator stress adversely affect the reproductive efficiency of pregnant mice by decreasing the implantation rate, live birth rates, neonatal birth weight and prolong the gestation length. These data will help in identify the reasons behind the effects of prenatal predator stress on reproductive failure.

키워드

저자

• Shimin Zhang [ Department of Animal Science, Division of Applied Life Science (BK21 Plus) ]
• Ayman Mesalam [ Department of Animal Science, Division of Applied Life Science (BK21 Plus) ]
• Kyeong-Lim Lee [ Department of Animal Science, Division of Applied Life Science (BK21 Plus) ]
• Seok-Hwan Song [ Department of Animal Science, Division of Applied Life Science (BK21 Plus) ]
• Lianguang Xu [ Department of Animal Science, Division of Applied Life Science (BK21 Plus) ]
• Yuguo Yuan [ Department of Animal Science, Division of Applied Life Science (BK21 Plus), Institute of Agriculture and Life Science, Gyeongsang National University, Jinju 52828, Republic of Korea ]
• Il-Keun Kong [ Department of Animal Science, Division of Applied Life Science (BK21 Plus), Institute of Agriculture and Life Science, Gyeongsang National University, Jinju 52828, Republic of Korea ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  발생공학 국제심포지엄 및 학술대회 [International Symposium on Developmental Biotechnology]

• 간기

  연간

• 수록기간

  2004~2018

• 십진분류

  KDC 527 DDC 636