The Effect of Oxytocin on Fertility in Gilts Artificially Inseminated with a Low Sperm Concentration and Semen Volume

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Abstract
Seventy-three gilts artificially inseminated with 2.5 billion sperm suspended in 20 ml. of diluent were assigned to either a control group, a group receiving 10 I.U. of oxytocin intrauterine, or a group receiving 10 I.U. of oxytocin intravenously. The percent of ova recovered that were fertilized, and the percent of gilts conceiving was obtained by boar-treatment group. There was a significant difference among treatments (P<0.01) and among boars (P<0.05) in percent fertility, but the boar-treatment interaction was not significant. The litter size at 3 days post-breeding was 5.6 for the control group, 5.0 for the group receiving oxytocin intrauterine and 6.8 for the group receiving oxytocin intravenously. There was no significant difference among these groups in three-day litter size. Copyright © . .