Stephen D Johnston

Summary

Affiliation: University of Queensland
Country: Australia

Publications

  1. ncbi The effect of chilled storage and cryopreservation on the sperm DNA fragmentation dynamics of a captive population of koalas
    Stephen D Johnston
    School of Agriculture and Food Science, University of Queensland, Gatton, Queensland, Australia 4343
    J Androl 33:1007-15. 2012
  2. doi The effect of cryoprotectant on kangaroo sperm ultrastructure and mitochondrial function
    Rhett McClean
    School of Animal Studies, University of Queensland, Gatton, QLD 4343, Australia
    Cryobiology 57:297-303. 2008
  3. doi Evidence that single-stranded DNA breaks are a normal feature of koala sperm chromatin, while double-stranded DNA breaks are indicative of DNA damage
    Yeng Peng Zee
    The University of Queensland, Gatton, Queensland, Australia
    Reproduction 138:267-78. 2009
  4. ncbi Ultrastructure, osmotic tolerance, glycerol toxicity and cryopreservation of caput and cauda epididymidal kangaroo spermatozoa
    Rhett McClean
    School of Animal Studies, University of Queensland, Gatton, QLD 4343, Australia
    Reprod Fertil Dev 18:469-76. 2006
  5. doi Spermiogenesis in the Australian cockatiel Nymphicus hollandicus
    Erica M Lovas
    School of Veterinary Science, The University of Queensland, Gatton, Australia 4343
    J Morphol 273:1291-305. 2012
  6. doi Eliminative behavior of captive numbats, Myrmecobius fasciatus (Mammalia; Marsupialia): pattern and identification of fecal deposits
    Lindsay A Hogan
    Wildlife Biology Unit, School of Agriculture and Food Sciences, The University of Queensland, Gatton, Queensland, Australia
    Zoo Biol 32:324-31. 2013
  7. ncbi Use of a GnRH agonist and hCG to obtain an index of testosterone secretory capacity in the koala (Phascolarctos cinereus)
    Camryn D Allen
    School of Animal Studies, The University of Queensland, Gatton, Queensland, Australia
    J Androl 27:720-4. 2006

Detail Information

Publications7

  1. ncbi The effect of chilled storage and cryopreservation on the sperm DNA fragmentation dynamics of a captive population of koalas
    Stephen D Johnston
    School of Agriculture and Food Science, University of Queensland, Gatton, Queensland, Australia 4343
    J Androl 33:1007-15. 2012
    ..After thawing, koala sperm chromatin tended to decondense; however, the incidence of sperm DNA fragmentation was not correlated with the incidence of sperm chromatin relaxation after glycerol (R = .2) or DMA (R = -.04) cryopreservation...
  2. doi The effect of cryoprotectant on kangaroo sperm ultrastructure and mitochondrial function
    Rhett McClean
    School of Animal Studies, University of Queensland, Gatton, QLD 4343, Australia
    Cryobiology 57:297-303. 2008
    ..Future research should be directed at investigating strategies that reduce exposure of spermatozoa to glycerol during processing and that test the cryoprotective properties of 20% DMSO for kangaroo spermatozoa...
  3. doi Evidence that single-stranded DNA breaks are a normal feature of koala sperm chromatin, while double-stranded DNA breaks are indicative of DNA damage
    Yeng Peng Zee
    The University of Queensland, Gatton, Queensland, Australia
    Reproduction 138:267-78. 2009
    ....
  4. ncbi Ultrastructure, osmotic tolerance, glycerol toxicity and cryopreservation of caput and cauda epididymidal kangaroo spermatozoa
    Rhett McClean
    School of Animal Studies, University of Queensland, Gatton, QLD 4343, Australia
    Reprod Fertil Dev 18:469-76. 2006
    ..05). These experiments clearly indicate that epididymal maturation of kangaroo spermatozoa results in a decreased ability to withstand the physiological stresses associated with cryopreservation...
  5. doi Spermiogenesis in the Australian cockatiel Nymphicus hollandicus
    Erica M Lovas
    School of Veterinary Science, The University of Queensland, Gatton, Australia 4343
    J Morphol 273:1291-305. 2012
    ....
  6. doi Eliminative behavior of captive numbats, Myrmecobius fasciatus (Mammalia; Marsupialia): pattern and identification of fecal deposits
    Lindsay A Hogan
    Wildlife Biology Unit, School of Agriculture and Food Sciences, The University of Queensland, Gatton, Queensland, Australia
    Zoo Biol 32:324-31. 2013
    ..Reliable labeling was obtained using blue and red colored food dye, and there was no evidence that incorporation of the marker into the diet had any negative effects on food intake...
  7. ncbi Use of a GnRH agonist and hCG to obtain an index of testosterone secretory capacity in the koala (Phascolarctos cinereus)
    Camryn D Allen
    School of Animal Studies, The University of Queensland, Gatton, Queensland, Australia
    J Androl 27:720-4. 2006
    ....