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＜departmental bulletin paper＞
The life history of the Japanese mouse, Mus molossinus Themminck and Schlegel I : On the devices of rearing

Creator
Creator Name
平岩, 馨邦
Hiraiwa, Yoshikuni
Affiliation
Affiliation Name
九州大学農学部動物学教室
Laboratory of Zoology, Faculty of Agriculture, Kyushu University
Creator Name
濱島, 房則
Hamajima, Fusanori
Affiliation
Affiliation Name
九州大学農学部動物学教室
Laboratory of Zoology, Faculty of Agriculture, Kyushu University
Language
Japanese
Publisher
九州大學農學部
Faculty of Agriculture, Kyushu University
Date
1960-12
Source Title
Science bulletin of the Faculty of Agriculture, Kyushu University
Vol
18
Issue
2
First Page
161
Last Page
165
Publication Type
Version of Record
Access Rights
open access
JaLC DOI
https://doi.org/10.15017/21531
Related DOI
九州大學農學部學藝雜誌 || 18(2) || p161-165
Science bulletin of the Faculty of Agriculture, Kyushu University || 18(2) || p161-165
http://www.agr.kyushu-u.ac.jp/
Related URI
九州大學農學部學藝雜誌 || 18(2) || p161-165
Science bulletin of the Faculty of Agriculture, Kyushu University || 18(2) || p161-165
http://www.agr.kyushu-u.ac.jp/
Relation
九州大學農學部學藝雜誌 || 18(2) || p161-165
Science bulletin of the Faculty of Agriculture, Kyushu University || 18(2) || p161-165
http://www.agr.kyushu-u.ac.jp/

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Details

Record ID
21531
Peer-Reviewed
Unrefereed
Subject Terms
ハツカネズミ
発情周期
交尾
妊娠
分娩
ISSN
0368-6264
NCID
AN0005519X
Notes
Main points of our observation on estrous cycle, copulation, pregnancy and parturition of Japanese mouse, Mus molossinus Temminck and Schlegel are summarized as follows : 1. The estrous cycle of this wild mouse is also divided into the following four stages, i. e. proestrus, estrus, metestrus and diestrus. The average duration of the estrous cycle is 6.001 ± 0.079 days. The average duration of the estrous is 0.68 day, estrus 2.30 days, metestrus 0.63 day and diestrus 2.39 days respectively. 2. The copulation occurs usually between proestrus and estrus at midnight. 3. At the beginning of the second week after copulation the vaginal smears contain goblet-shaped mucus-secreting epithelial cells with the nucleus at the apex (Fig.1 ). 4. The appearance of blood in the vagina, so called "placental sign " is noticed within the period of 8 to 13 days after copulation. The average duration elapsing between copulation and placental sign is 11.16 ± 0.133 days. The blood is a positive indications of pregnancy. 5. The majority of parturitions takes place at midnight. The average period of gestation in the non-suckling mouse is usually 20.24 ± 0.122 days. But in the case of the suckling mouse it is somewhat lengthened.
洋種ハツカネズミに関する繁殖についての研究にはAllen(1922),Parkes(1926)をはじめ多くの研究がある.しかし日本産野棲ハツカネズミに関しては未だほとんどその研究がなされていない.そこでわれわれは前報で述べた飼育法により本種を飼育し,発情周期,交尾,妊娠および分娩について観察し,若干の知見を得たのでここにこれらについて簡単に述べてみたい.
Created Date 2012.03.21
Modified Date 2022.11.11

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