C Aurich



  1. Beyer T, Rink B, Scarlet D, Walter I, Kunert S, Aurich C. Early luteal phase progestin concentration influences endometrial function in pregnant mares. Theriogenology. 2018;125:236-241 pubmed publisher
    ..This influenced endometrial function as reflected in lower concentrations of the amino acids lysine and isoleucine in endometrial secretions. Enhanced progestin concentration had less clear effects in healthy fertile mares. ..
  2. Gautier C, Schmidt K, Aurich J, Aurich C. Effects of implants containing the GnRH agonist deslorelin on testosterone release and semen characteristics in Shetland stallions. Anim Reprod Sci. 2018;: pubmed publisher
    ..In conclusion, deslorelin implants modulate pituitary function in stallions but not to an extent that affects testicular function. ..
  3. Al Essawe E, Johannisson A, Wulf M, Aurich C, Morrell J. Addition of seminal plasma to thawed stallion spermatozoa did not repair cryoinjuries. Anim Reprod Sci. 2018;196:48-58 pubmed publisher
  4. Al Essawe E, Wallgren M, Wulf M, Aurich C, Macías García B, Sjunnesson Y, et al. Seminal plasma influences the fertilizing potential of cryopreserved stallion sperm. Theriogenology. 2018;115:99-107 pubmed publisher
    ..Customization of the protocol for individual stallions is recommended to optimize the effect. ..
  5. Rink B, Kuhl J, Esteves C, French H, Watson E, Aurich C, et al. Reproductive stage and sex steroid hormone levels influence the expression of mesenchymal stromal cell (MSC) markers in the equine endometrium. Theriogenology. 2018;116:34-40 pubmed publisher
    ..In conclusion, our results suggest that levels of MSC markers in equine endometrium dynamically change across reproductive cycles and that MSC populations are in part regulated by sex steroids. ..
  6. Hartmann C, Gerner W, Walter I, Saalmuller A, Aurich C. Influences of intrauterine semen administration on regulatory T lymphocytes in the oestrous mare (Equus caballus). Theriogenology. 2018;118:119-125 pubmed publisher
    ..Results of the present study provide only little evidence that maternal tolerance of pregnancy in the horse is modulated already by exposure of the oestrous endometrium to seminal plasma at mating. ..
  7. Schrammel N, Deichsel K, Aurich J, Aurich C. A long-day light program accelerates seasonal coat changes but is without effect on semen and metabolic parameters in Shetland pony stallions. Theriogenology. 2016;85:946-953 pubmed publisher
    ..In conclusion, Shetland stallions showed seasonal variations in hair coat and total sperm count but only changes in hair coat but not semen parameters were advanced by a long-day light program. ..
  8. Deichsel K, Schrammel N, Aurich J, Aurich C. Effects of a long-day light programme on the motility and membrane integrity of cooled-stored and cyropreserved semen in Shetland pony stallions. Anim Reprod Sci. 2016;167:68-73 pubmed publisher
    ..In conclusion, motility of cooled-stored semen was reduced in January and increased in stallions kept under a long day light programme for at least 30 days. ..
  9. Aurich C, Schreiner B, Ille N, Alvarenga M, Scarlet D. Cytosine methylation of sperm DNA in horse semen after cryopreservation. Theriogenology. 2016;86:1347-52 pubmed publisher
    ..The lower fertility rates of mares after insemination with frozen-thawed semen may at least in part be explained by cytosine methylation of sperm-DNA induced by the cryopreservation procedure. ..

More Information


  1. Al Essawe E, Johannisson A, Wulf M, Aurich C, Morrell J. Improved cryosurvival of stallion spermatozoa after colloid centrifugation is independent of the addition of seminal plasma. Cryobiology. 2018;81:145-152 pubmed publisher
    ..Sperm kinematics were not different. In conclusion, selection by SLC prior to cryopreservation improved post-thaw sperm quality; inclusion of SP from "good" and "bad" freezer stallions did not have an additional beneficial effect. ..
  2. Beythien E, Wulf M, Ille N, Aurich J, Aurich C. Effects of sex, pregnancy and season on insulin secretion and carbohydrate metabolism in horses. Anim Reprod Sci. 2017;184:86-93 pubmed publisher
    ..In conclusion, in horses, ?-cell sensitivity to glucose is affected by season while insulin sensitivity during pregnancy decreases independent from season. ..
  3. Al Kass Z, Spergser J, Aurich C, Kuhl J, Schmidt K, Johannisson A, et al. Sperm Quality during Storage Is Not Affected by the Presence of Antibiotics in EquiPlus Semen Extender but Is Improved by Single Layer Centrifugation. Antibiotics (Basel). 2017;7: pubmed publisher
    ..Sperm quality remained higher in the MSLC groups than controls throughout storage. These results indicate that sperm quality was not adversely affected by the presence of antibiotics but was improved considerably by MSLC. ..
  4. de Oliveira R, Scarlet D, Ille N, Aurich C. Cooled-storage of equine semen does not induce major changes in sperm DNA methylation. Theriogenology. 2017;89:289-294 pubmed publisher
    ..It can be concluded that a better fertility of cooled-stored than cryopreserved stallion semen is at least in part a result of only minor influences of cooled-storage on DNA integrity and methylation. ..
  5. Nagel C, Trenk L, Wulf M, Ille N, Aurich J, Aurich C. Oxytocin treatment does not change cardiovascular parameters, hematology and plasma electrolytes in parturient horse mares. Theriogenology. 2017;91:69-76 pubmed publisher
    ..In conclusion, except for a limited effect on cortisol release, oxytocin was without effect and the hypothesis of oxytocin-induced alterations in cardiac parameters, plasma electrolytes and hematology of foaling mares was not verified. ..
  6. Schmidt K, Deichsel K, de Oliveira R, Aurich J, Ille N, Aurich C. Effects of environmental temperature and season on hair coat characteristics, physiologic and reproductive parameters in Shetland pony stallions. Theriogenology. 2017;97:170-178 pubmed publisher
    ..Simultaneously determined effects on semen characteristics were minimal indicating that reproductive function in the horse is more dependent on day length i.e. the geophysical year than on other environmental factors. ..
  7. Aurich C, Ortega Ferrusola C, Peña Vega F, Schrammel N, Morcuende D, Aurich J. Seasonal changes in the sperm fatty acid composition of Shetland pony stallions. Theriogenology. 2018;107:149-153 pubmed publisher
    ..Seasonal differences in sperm fatty acids might in part explain seasonal differences in the resistance of equine spermatozoa to cryopreservation and cooled-storage. ..