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Intra-horn insemination in the alpaca Vicugna pacos: Copulatory wounding and deep sperm deposition
Fig 3
Total percentages of red pixels indicative of blood.
Unmated alpacas had very minimal blood in their reproductive tract compared to females mated within 1 h and 24 hrs prior to euthanasia.
doi: https://doi.org/10.1371/journal.pone.0295882.g003