Effect of culture conditions, donor age, and injection site on in vitro development of DNA microinjected porcine zygotes.

M. A. Hajdu, J. W. Knight, R. S. Canseco, R. L. Krisher, William H Velander, R. E. Pearson, F. C. Gwazdauskas

Research output: Contribution to journalArticle

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Abstract

A series of experiments evaluated development of porcine zygotes microinjected with DNA in three culture media and two incubation temperatures, from postpubertal and prepubertal donors, and between zygotes injected with DNA into the pronucleus and the cytoplasm. Zygotes recovered from 36 postpubertal gilts in Exp. 1 were injected and cultured in modified NCSU-23, modified NCSU-37, and CZB media at 37 degrees C or 39 degrees C for 7 d. In Exp. 2, zygotes were collected from postpubertal or prepubertal gilts, microinjected with DNA, and cultured in modified NCSU-23. In Exp. 3 superovulated prepubertal gilts had DNA injected into the cytoplasm or pronucleus of zygotes. Mean percentages developing to the expanded or hatched blastocyst stage in modified NCSU-23 (42.9) and modified NCSU-37 (40.1) did not differ, but development was greater than that for zygotes cultured in CZB (8.8; P < .05). Development was greater at 39 degrees C (P < .05) than at 37 degrees C (36.5 vs 24.6%). Microinjection of DNA decreased development (P < .05) from that of noninjected controls (18.1 vs 43.1%). Zygotes from postpubertal gilts had a higher percentage (68.0) of expanded and hatched blastocysts than zygotes from prepubertal donors (29.0; P < .05). No development difference was found between DNA injection into the pronucleus (23.1%) or cytoplasm (17.4%), but development was less than for control embryos (64.9%; P < .05). DNA microinjected porcine zygotes can be successfully cultured to the expanded blastocyst stage in modified NCSU-23 and modified NCSU-37 media at 39 degrees C.(ABSTRACT TRUNCATED AT 250 WORDS)

Original languageEnglish (US)
Pages (from-to)1299-1305
Number of pages7
JournalJournal of animal science
Volume72
Issue number5
DOIs
StatePublished - Jan 1 1994

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Zygote
injection site
zygote
Swine
Injections
swine
DNA
gilts
pronucleus
Blastocyst
blastocyst
Cytoplasm
cytoplasm
In Vitro Techniques
Microinjections
Culture Media
embryo (animal)
Embryonic Structures
culture media
injection

ASJC Scopus subject areas

  • Food Science
  • Animal Science and Zoology
  • Genetics

Cite this

Effect of culture conditions, donor age, and injection site on in vitro development of DNA microinjected porcine zygotes. / Hajdu, M. A.; Knight, J. W.; Canseco, R. S.; Krisher, R. L.; Velander, William H; Pearson, R. E.; Gwazdauskas, F. C.

In: Journal of animal science, Vol. 72, No. 5, 01.01.1994, p. 1299-1305.

Research output: Contribution to journalArticle

Hajdu, M. A. ; Knight, J. W. ; Canseco, R. S. ; Krisher, R. L. ; Velander, William H ; Pearson, R. E. ; Gwazdauskas, F. C. / Effect of culture conditions, donor age, and injection site on in vitro development of DNA microinjected porcine zygotes. In: Journal of animal science. 1994 ; Vol. 72, No. 5. pp. 1299-1305.
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abstract = "A series of experiments evaluated development of porcine zygotes microinjected with DNA in three culture media and two incubation temperatures, from postpubertal and prepubertal donors, and between zygotes injected with DNA into the pronucleus and the cytoplasm. Zygotes recovered from 36 postpubertal gilts in Exp. 1 were injected and cultured in modified NCSU-23, modified NCSU-37, and CZB media at 37 degrees C or 39 degrees C for 7 d. In Exp. 2, zygotes were collected from postpubertal or prepubertal gilts, microinjected with DNA, and cultured in modified NCSU-23. In Exp. 3 superovulated prepubertal gilts had DNA injected into the cytoplasm or pronucleus of zygotes. Mean percentages developing to the expanded or hatched blastocyst stage in modified NCSU-23 (42.9) and modified NCSU-37 (40.1) did not differ, but development was greater than that for zygotes cultured in CZB (8.8; P < .05). Development was greater at 39 degrees C (P < .05) than at 37 degrees C (36.5 vs 24.6{\%}). Microinjection of DNA decreased development (P < .05) from that of noninjected controls (18.1 vs 43.1{\%}). Zygotes from postpubertal gilts had a higher percentage (68.0) of expanded and hatched blastocysts than zygotes from prepubertal donors (29.0; P < .05). No development difference was found between DNA injection into the pronucleus (23.1{\%}) or cytoplasm (17.4{\%}), but development was less than for control embryos (64.9{\%}; P < .05). DNA microinjected porcine zygotes can be successfully cultured to the expanded blastocyst stage in modified NCSU-23 and modified NCSU-37 media at 39 degrees C.(ABSTRACT TRUNCATED AT 250 WORDS)",
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AU - Knight, J. W.

AU - Canseco, R. S.

AU - Krisher, R. L.

AU - Velander, William H

AU - Pearson, R. E.

AU - Gwazdauskas, F. C.

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