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Asian-Australas J Anim Sci > Volume 12(2); 1999 > Article
Animal Reproduction and Physiology
Asian-Australasian Journal of Animal Sciences 1999;12(2): 169-173.
DOI: https://doi.org/10.5713/ajas.1999.169    Published online March 1, 1999.
Effect of Exogenous Fatty Acids on in vitro Development of Rat Embryos
M. A. M. Yahia Khandoker, H. Tsujii
Abstract
Studies were made to evaluate the specific and combined effects of different fatty acids on the in vitro development of 8-cell rat embryo in culture media with and without carbohydrate substrate. Palmitic, oleic, linoleic and arachidonic acids were added singly and in combination to media which contained fatty acid-free BSA. Cell numbers in blastocysts cultured in the media were counted and compared with cell numbers in blastocysts at the corresponding stage collected from the uterus. Oleic, linoleic and arachidonic acids promoted the rat embryo development from 8-cell to the blastocysts, especially in the absence of carbohydrate substrates. Among these three, oleic acid was the most effective but embryo development was not accelerated by the addition of palmitic acid in either the presence or the absence of carbohydrate substrates. Addition of the mixture of four fatty acids was more effective for rat embryo development than single treatment with any of fatty acids tested. Cell numbers per blastocyst in the presence and absence of carbohydrate substrate were similar, and did not differ from those for blastocysts obtained from the uterus.
Keywords: Rat Embryo; Fatty Acid; Embryo Development; In Vitro Culture


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