Reproductive Characteristics of the Feral Raccoon (Procyon lotor) in Hokkaido, Japan

Reproductive Characteristics of the Feral Raccoon (Procyon lotor) in Hokkaido, Japan

Reproduction of feral raccoons (Procyon lotor) in Hokkaido, Japan, was examined during a 2-year period by analysis of placental scars or fetuses in the uterus. Of 242 collected females, 69 (29%) were juveniles, 71 (29%) yearlings, and 102 (42%) adults. The pregnancy rate averaged 66% in yearlings an...

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Veröffentlicht in:Journal of Veterinary Medical Science 2003, Vol.65(3), pp.369-373
Hauptverfasser: ASANO, Makoto, MATOBA, Yohei, IKEDA, Toru, SUZUKI, Masatsugu, ASAKAWA, Mitsuhiko, OHTAISHI, Noriyuki
Format: Artikel
Sprache:eng
Schlagworte:
Aging
Animals
Animals, Wild
Body Weight
Female
feral
Japan
Lactation
placental scar
Pregnancy
Procyon lotor
raccoon
Raccoons - physiology
Reproduction
Seasons
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Zusammenfassung:Reproduction of feral raccoons (Procyon lotor) in Hokkaido, Japan, was examined during a 2-year period by analysis of placental scars or fetuses in the uterus. Of 242 collected females, 69 (29%) were juveniles, 71 (29%) yearlings, and 102 (42%) adults. The pregnancy rate averaged 66% in yearlings and was significantly lower than the 96% average observed in adults (p
ISSN:0916-7250
1347-7439
DOI:10.1292/jvms.65.369