title: Semen effects on insemination outcomes in sows.
abstract: Sows (n=1205) were artificially inseminated with semen from single sires (n=166). Semen was previously analysed for sperm concentration, motility, velocity, morphology (using DIC microscopy) and membrane integrity, sperm clump score, temperature on arrival and pH. Percent normal sperm influenced both numbers of pigs born alive (P<0.01) and litter size (P<0.05) which, in turn, was also influenced by abnormal sperm head morphology (P<0.05) and retained distal cytoplasmic droplets (P<0.01). Percent stillbirths were influenced by sperm flagellar beat cross frequency (P<0.05) and semen arrival temperature (P<0.05).
authors.affiliation: School of Animal and Veterinary Science, Charles Sturt University, Wagga Wagga, New South Wales 2678, Australia. Electronic address: francoisemcpherson@hotmail.com.
authors.forename: F J
authors.initials: FJ
authors.lastname: McPherson
authors.affiliation: School of Mathematics and Computing, Charles Sturt University, Wagga Wagga, New South Wales 2678, Australia.
authors.forename: S G
authors.initials: SG
authors.lastname: Nielsen
authors.affiliation: School of Animal and Veterinary Science, Charles Sturt University, Wagga Wagga, New South Wales 2678, Australia.
authors.forename: P J
authors.initials: PJ
authors.lastname: Chenoweth
mesh_terms: D000818:Animals; D005260:Female; D007315:Insemination, Artificial / Q000662:veterinary*; D008098:Litter Size; D008297:Male; D011247:Pregnancy; D012661:Semen / Q000502:physiology*; D055101:Semen Analysis / Q000662:veterinary; D050497:Stillbirth / Q000662:veterinary; D013552:Swine / Q000502:physiology*
keywords: Boar sperm; Born alive; Litter size; Sperm morphology