Development of pig blastocysts in vitro is altered by serum, bovine serum albumin and amino acids and vitamins.

Development of pig blastocysts in vitro is altered by serum, bovine serum albumin and amino acids and vitamins. Research Abstract Details 

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Development of pig blastocysts in vitro is altered by serum, bovine serum albumin and amino acids and vitamins. Abstract Text:

B A Meyen,C F Rosenkrans,D L Davis,

We tested the effects of the amino acids and vitamins in minimum essential medium (MEM) and Eagle's medium (BME) on pig blastocyst development and nuclei number. Embryos were recovered either 5 or 6 d after first detected estrus and were cultured for 96 h in U-bottomed wells (0.2 ml). In Experiment 1, addition of MEM amino acids and vitamins to modified Krebs-Ringer bicarbonate (MKRB) medium containing either bovine serum albumin (BSA, 4 mg/ml) or lamb serum (10%, v/v) resulted in fewer (P<0.001) nuclei and smaller (P<0.05) embryo volumes at the end of culture as compared to embryos cultured in MKRB without MEM-supplements. Addition of MEM-amino acids without glutamine (Experiment II) depressed blastocyst volume and rate of hatching, but glutamine (2 mM) had no effect on embryo development. Dialysis (molecular weight > 12,000 retained) of fetal bovine serum (Experiment III) did not affect blastocyst expansion but reduced (P<0.05) the number of nuclei/blastocyst at the end of the culture. Embryos cultured in MKRB with dialyzed serum and the amino acids and vitamins in BME were smaller (P<0.05) and had fewer (P<0.05) nuclei than embryos cultured in MKRB with dialyzed serum but without the BME-supplements. We conclude that, under our culture conditions, MEM and BME amino acids and vitamins are detrimental to the development of early pig blastocysts and that this effect is not due to glutamine. Also, dialysis of fetal bovine serum removes some component(s) that are important for cell division by pig embryos, but it does not affect blastocyst expansion.

Development of pig blastocysts in vitro is altered by serum, bovine serum albumin and amino acids and vitamins. Publishing Authors By Initials

BA Meyen,CF Rosenkrans,DL Davis,

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Development of pig blastocysts in vitro is altered by serum, bovine serum albumin and amino acids and vitamins. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Theriogenology

VOLUME: 31

Page Numbers: 463-71

Journal Abbreviation: Theriogenology

ISSN: 0093-691X

DAY: 26

MONTH: Feb

YEAR: 1989

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LANGUAGE: eng

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Grant and Affiliation Information for Development of pig blastocysts in vitro is altered by serum, bovine serum albumin and amino acids and vitamins.

AFFILIATION: Department of Animal Sciences and Industry Kansas State University Manhattan, KS 66506 USA.

Country: United States

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MEDLINETA: Theriogenology

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