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  • Title: Fixed-time artificial insemination in red deer (Cervus elaphus) in Argentina.
    Author: Aller JF, Fernandez O, Sanchez E.
    Journal: Anim Reprod Sci; 2009 Oct; 115(1-4):312-6. PubMed ID: 19131191.
    Abstract:
    Synchronization of estrous and fixed-time artificial insemination (FTAI) was conducted during the reproductive season of 2008 (March-April) in a local red deer breeding farm in Argentina. Multiparous suckling hinds (n=38) were artificially inseminated following hormonal treatment (intravaginal sponge containing 100mg of medroxiprogesterone acetate). At the time of sponge removal (day 12) 250 IU of eCG and 500 microg of PGF2alpha were given to each hind. The FTAI was performed at 48-55 h after device removal with cryopreserved semen imported from New Zealand. Rectal-transcervical AI method (similar to that in cattle) was performed and semen was deposited within the uterine body (n=28) or the cervix (n=10). Pregnancy was diagnosed by means of ultrasonography 44 days after FTAI. The overall pregnancy rate was 36.8% (14/38). Percentage of does that became pregnant with intrauterine seminal deposition was 42.9% (12/28) whereas pregnancy rate in the hinds with intracervical AI was 20% (2/10; P=0.27).
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