Jan 9, 2003

Cryopreservation of semen from endangered pheasants: the first step towards a cryobank for endangered avian species

Theriogenology
Michel Saint JalmeE Plouzeau

Abstract

In order to improve the genetic management of bird species within the European Endangered Programs (EEP), a research project on artificial insemination and cryopreservation of Galliformes semen has been developed. The aim of the program is to create a sperm cryobank for threatened bird species. During this study, semen was collected from 17 pheasant species and specific characteristics of ejaculates were analyzed (volume, sperm concentration, motility, pH). Artificial insemination with fresh semen was performed in nine species and with frozen semen in eight species. Inseminations with frozen and thawed semen were made in 17 species. Viability of fresh and frozen semen was assessed in vitro using double stains, eosin and nigrosin. The effect of pH (7-8.5) on viability of fresh and frozen/thawed spermatozoa was also studied. Chicks hatched in eight and three species after insemination with fresh and frozen/thawed semen, respectively. Species varied widely in semen viability: 1-30% of spermatozoa survived freezing and thawing. There was a negative correlation between the viability of frozen spermatozoa and semen pH. In our experimental conditions, the pH of diluents had no effect on semen viability. However, semen with the highest...Continue Reading

  • References10
  • Citations39

Mentioned in this Paper

Seminal Fluid
Sperm Concentration Measurement
Cell Motility
Galliformes
Sperm Cell
Sperm Banks
Spermatozoa Cell Count
Motility
Frozen Semen
Semen

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