The Usefulness of Vaginal Cytology during the Estrous Cycle in Miniature Schnauzer Dogs
2008
Kim, J.B. (Chonnam National University, Gwangju, Republic of Korea) | Kim, B.S. (Chonnam National University, Gwangju, Republic of Korea) | Park, S.G. (Jeollanamdo Livestock and Veterinary Research Institute, Gwangju, Republic of Korea) | Kim, J.P. (Jeollanamdo Livestock and Veterinary Research Institute, Gwangju, Republic of Korea) | Moon, J.S. (National Veterinary Research and Quarantine Service, Anyang, Republic of Korea) | Suh, G.H. (Chonnam National University, Gwangju, Republic of Korea) | Oh, K.S. (Chonnam National University, Gwangju, Republic of Korea) | Son, C.H. (Chonnam National University, Gwangju, Republic of Korea), E-mail: [email protected]
Vaginal cytology with behavioral observation was performed in 34 estrous cycles in 16 Miniature Schnauzer dogs to evaluate the its usefulness. The mean duration of proestrus and estrus in Miniature Schnauzer based on behavioral observation and vaginal cytology was 7.58±1.50 (Mean±S.D., range: 5~10) and 8.46±2.82 (6~17) days for proestrus, and 6.97±1.66 (4~10) and 10.29±2.61 (6~19) days for estrus, respectively. The duration of each phase of the estrous cycle was not significantly different based on between behavioral observation and vaginal cytology. The gestational length from the first day of male acceptance was 66.55±2.91 (64~76) days, 57.70±1.92 (54~62) days from the first male refusal, and 56.90±1.62 (54~60) days from the onset of cytologic diestrus, respectively. Vaginal cytology during the estrous cycle were significantly characteristic of large intermediate cells in proestrus, anuclear cells in estrus, small intermediate cells in diestrus, and parabasal cells and small intermediate cells in anestrus (p less than 0.001), respectively. Cornification index (CI) by vaginal cytology was higher in proestrus (69.90±1.44%) and estrus (91.35±1.09%), then it was decreased in diestrus (13.53±1.28%) and anestrus (1.16±1.26%).
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