Obstetric and fetal outcomes in dystocic and eutocic sows to an injection of exogenous oxytocin during farrowing.
Sixty hybrid Yorkshire-Landrace penned sows, 30 with eutocic farrowing and 30 experiencing a dystocic parturition, were studied to evaluate the obstetric and neonatal outcomes to low doses of oxytocin administered at advanced stages of parturition. Animals in each group were randomly subdivided into 2 subgroups: 15 eutocic and 15 dystocic sows received oxytocin 0.083 IU/kg (equivalent to 1 IU/12 kg body weight), administered intramuscularly after the delivery of the 5th piglet; the other 15 eutocic and 15 dystocic sows received saline solution intramuscularly at the same time. Oxytocin decreased the number of intrapartum deaths by approximately 50% (P = 0.002). No piglet was born dead from the saline- and oxytocin-treated eutocic sows. The highest viability score was observed among piglets born to eutocic sows treated with oxytocin. In summary, this dose schedule would help to decrease the number of stillbirths in both eutocic and dystocic farrowing sows.
González-Lozano
Miguel
M
Department of Animal Production & Agriculture, Area de Investigación, Ecodesarrollo de la Producción Animal, Universidad Autónoma Metropolitana-Xochimilco, Calzada del Hueso 1100. Col. Villa Quietud. 04960, Coyoacán, México DF, Mexico
Mota-Rojas
Daniel
D
Velázquez-Armenta
E Yadira
EY
Nava-Ocampo
Alejandro A
AA
Hernández-González
Rafael
R
Becerril-Herrera
Marcelino
M
Trujillo-Ortega
María E
ME
Alonso-Spilsbury
María
M
D000818:Animals; D000831:Animals, Newborn; D004420:Dystocia / Q000188:drug therapy / Q000662:veterinary*; D005260:Female; D005313:Fetal Death; D005333:Fetus / Q000187:drug effects / Q000502:physiology; D007273:Injections, Intramuscular / Q000662:veterinary; D010120:Oxytocics / Q000494:pharmacology* / Q000627:therapeutic use; D010121:Oxytocin / Q000494:pharmacology* / Q000627:therapeutic use; D036801:Parturition / Q000187:drug effects*; D011247:Pregnancy; D011256:Pregnancy Outcome / Q000662:veterinary*; D011897:Random Allocation; D013552:Swine / Q000502:physiology*
D010120:Oxytocics; D010121:Oxytocin