title: The relationship between sperm quality in cool-shipped semen and embryo recovery rate in horses.
abstract: The relationship between the quality of cool-shipped stallion semen and fertility has not been adequately described. This study evaluated sperm quality of cool-shipped semen from 459 ejaculates (N = 130 stallions) that were used for insemination of 196 embryo donor mares (n = 496 estrous cycles). Embryo recovery rate (ERR; %) increased, as all sperm measures (e.g., motility, viability, DNA quality, morphology, concentration, and total number) increased. Threshold values are reported for each sperm quality measure (e.g., total sperm motility ≥ 65%) that separate two ERR groups (e.g., average: ∼50% ERR; high: ∼65% ERR).
authors.affiliation: Department of Large Animal Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, Texas, USA. Electronic address: clove@cvm.tamu.edu.
authors.forename: C C
authors.initials: CC
authors.lastname: Love
authors.affiliation: Noble Equine Veterinary Service, Purcell, Oklahoma, USA.
authors.forename: J K
authors.initials: JK
authors.lastname: Noble
authors.affiliation: Katy, Texas, USA.
authors.forename: S A
authors.initials: SA
authors.lastname: Standridge
authors.affiliation: Houston, Texas, USA.
authors.forename: C T
authors.initials: CT
authors.lastname: Bearden
authors.affiliation: Department of Large Animal Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, Texas, USA.
authors.forename: T L
authors.initials: TL
authors.lastname: Blanchard
authors.affiliation: Department of Large Animal Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, Texas, USA.
authors.forename: D D
authors.initials: DD
authors.lastname: Varner
authors.affiliation: Department of Animal and Dairy Science, Mississippi State University, Starkville, Mississippi, USA.
authors.forename: C A
authors.initials: CA
authors.lastname: Cavinder
mesh_terms: D000818:Animals; D003080:Cold Temperature; D004624:Embryo Transfer / Q000662:veterinary*; D005260:Female; D005298:Fertility; D006736:Horses / Q000502:physiology*; D007315:Insemination, Artificial / Q000662:veterinary; D008297:Male; D012661:Semen / Q000166:cytology* / Q000502:physiology; D055101:Semen Analysis / Q000662:veterinary*; D012662:Semen Preservation / Q000662:veterinary*; D013048:Specimen Handling / Q000379:methods / Q000662:veterinary; D013081:Sperm Motility; D013094:Spermatozoa / Q000002:abnormalities / Q000166:cytology / Q000502:physiology; D020858:Tissue and Organ Harvesting / Q000662:veterinary
keywords: Embryo donor; Fertility; Sperm quality; Stallion