Factors influencing success of artificial insemination of pigs using extended fresh semen in rural smallholder pig farms of Rwanda

Abstract

The present study was conducted to analyse the factors influencing the success of artificial
insemination (AI) in pigs using extended fresh semen in rural smallholder pig farms. One hundred
female pigs from Rulindo and Gicumbi districts in Northern Region of Rwanda were artificially
inseminated using locally collected and extended fresh semen. The pregnancy was confirmed by using
both no returns to estrus and abdomen palpation at 21 and two and half months post insemination,
respectively. The factors influencing the success of AI were analysed using one way analysis of
variance (ANOVA) test. The results showed that the number of inseminations per conception (IC) and
litter size were 1.89 ± 0.83 and 7.94 ± 2.24, respectively. The number of AI per conception was
significantly influenced (p < 0.05) by intrinsic factors (age and parity of the female pig) and extrinsic
factors (sex, age and education of household head, time of AI and distance between the farm and
semen collection center). The litter size was significantly influenced (p < 0.05) by parity. From the
results, we recommend establishing more semen production centers and providing more training on
pig management and AI.