E. Blesbois

TL;DR: The benefits of a semen and blood cryobanking complex for the management of endangered lines and strains of domestic birds and technical solutions to resolve some of the health problems frequently encountered for gene preservation in poultry are reported.

TL;DR: The double stain SYBR-14 + PI was proven more effective than Eosin + Nigrosin to assess sperm viability in fresh, stored, and frozen fowl semen, and remained necessary to develop a working model of in vitro sperm analysis capable of revealing the fertilizing potential of fresh and Frozen fowl spermatozoa.

TL;DR: Sperm membrane fluidity in chickens, turkeys and guinea fowl behaves as an indicator of sperm freezability in these species and significantly decreased sperm viability and morphological integrity and increased anisotropy in all species but did not change the inter species hierarchy.

TL;DR: The feasibility of using a very simple and inexpensive method to achieve artificial insemination and cryopreservation of semen in endangered pheasant species and a negative correlation between the viability of frozen spermatozoa and semen pH is demonstrated.

TL;DR: It is concluded that even without the selection of parent stock animals (for fertilizing or laying ability) and without any selection of semen before freezing or after thawing, it is possible to obtain a high level of fertility and viability with this improved glycerol method following twice-weekly insemination with 300 million sperm cells.