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논문 기본 정보

자료유형
학술저널
저자정보
Jae-Hyoung Ryu (Sejong University) Yoo-Kyung Lee (R.D.A.) Sung-Back Cho (R.D.A.) Ok-Hwa Hwang (R.D.A.) Sung-Kwon Park (Sejong University)
저널정보
충남대학교 농업과학연구소 Korean Journal of Agricultural Science Korean Journal of Agricultural Science Vol.43 No.1
발행연도
2016.3
수록면
72 - 79 (8page)

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초록· 키워드

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It has long been known that nutritional and environmental influences during the early developmental period affect the biological mechanisms which determine animal metabolism. This phenomenon, termed ‘metabolic imprinting’, can cause subtle but long-lasting responses to prenatal and postnatal nutrition and even be passed onto the next generation. A large amount of research data shows that nutrient availability, in terms of quantity as well as quality, during the early developing stages can decrease the number of newborn piglets and their body weight and increase their susceptibility to death before weaning. However, investigation of potential mechanisms of ‘the metabolic imprinting’ effect have been scant. Therefore, it remains unknown which factors are responsible for embryonic and early postnatal nutrition and which factors are major determinants of body weight and number of new born piglets. Intrauterine undernutrition, for example, was studied using a rat model providing dams 50% restricted nutrients during pregnancy and the results showed significant decreases in birth weight of newborns. This response may be a characteristic of a subset of modulations in embryonic development which is caused by the metabolic imprinting. Underlying mechanisms of intrauterine undernutrition and growth retardation can be explained in part by epigenetics. Epigenetics modulate animal phenotypes without changes in DNA sequences. Epigenetic modifications include DNA methylation, chromatin modification and small non-coding RNA-associated gene silencing.. Precise mechanisms must be identified at the morphologic, cellular, and molecular levels by using interdisciplinary nutrigenomics approaches to increase pig production. Experimental approaches for explaining these potential mechanisms will be discussed in this review.
#development #growth #metabolic imprinting #nutrition #pigs

목차

Abstract
Introduction
Results and Discussion
Conclusion
References

참고문헌 (26)

참고문헌 신청
Allen RE, Rankin LL. 1990. Regulation of satellite cells during skeletal muscle growth and development. Proceedings of SocietyExperimental Biology and Medicine 194:81-86. google schola Allen WR, Wilsher S, Turnbull C, Stewart F, Ousey J, Rossdale PD, Fowden AL. 2002. Influence of maternal size on placental, fetaland postnatal growth in the horse: I. Development in utero. Reviews of Reproduction 123:445-453. google schola Barker DJ, Clark PM. 1997. Fetal undernutrition and disease in later life. Reviews of Reproduction 2:105-112. google schola Cho YM, Choi BH, Kim TH, Lee W, Lee JE, Oh SJ, Cheong IC. 2004. A study on estimation of individual growth curve parameters andtheir relationships with meat quality traits of crossbred between Korean native boars and Landrace sows. Journal of AnimalScience and Technology. 46(4):503-508. google schola Davies MJ, Norman RJ. 2002. Programming and reproductive functioning. Trends in Endocrinology and Metabolism 13:386-392. google schola

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