Fat ablation and food restriction influence reproductive development and hibernation in ground squirrels.
Fat ablation and food restriction influence reproductive development and hibernation in ground squirrels.
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脂肪消融和食物限制会影响地松鼠的生殖发育和冬眠。
DOI：
10.1095/biolreprod34.5.831
复制
发表时间：
1986
影响因子：
3.6
通讯作者：
Zucker,I
中科院分区：
文献类型：
--
作者：
Forger,NG;Dark,J;Barnes,BM;Zucker,I
白色脂肪组织在雄性金背地松鼠生殖器发育中的作用通过在冬眠开始前立即手术切除脂肪（脂肪切除术）或在冬眠前5周通过食物限制操纵脂肪水平来评估。然后动物在6 ℃下禁食，从1983年11月至1984年4月冬眠。此时，测定血浆激素水平，并测定体重、身体组成、睾丸和精囊-前列腺复合体的质量。在尸检中，睾丸和性附属器官较重的控制松鼠比食物限制或脂肪切除（LIPX）的动物。双睾丸质量与体质量呈正相关。在昏睡期间采样的动物中，睾酮、促黄体生成素（LH）和促卵泡激素（FSH）水平均较低，但在2只恢复正常体温状态的动物中升高。食物限制的动物花更多的时间在冬眠比其他两个组，在冬眠季节的体重下降的百分比是食物限制比LIPX或控制动物。充足的脂质储备可能是雄性地松鼠生殖器官正常发育所必需的。在野外，脂肪储存不足的动物可能会放弃繁殖，从而保存生存所需的能量。
The role of white adipose tissue in development of the reproductive apparatus of male golden-mantled ground squirrels was assessed by surgical removal of fat (lipectomy) immediately prior to onset of hibernation or by manipulation of fat levels through food restriction for 5 wk preceding hibernation. Animals then were maintained without food at 6#{176} C, and they hibernated from November 1983 until April 1984. At that time, blood plasma was assayed for hormone levels, and body mass, body composition, and masses of the testes and seminal vesicle-prostate complex were determined. At autopsy, testes and sexual accessory organs were heavier in Control squirrels than in Food-Restricted or Lipectomized(LIPX) animals. Paired-testes mass was positively correlated with body mass. Testosterone, luteinizing hormone(LH), and follicle-stimulating hormone(FSH) levels were uniformly low in animals sampled during torpor, but were elevated in 2 animals that had regained the euthermic state. The Food-Restricted animals spent more time in torpor than did the other two groups, and the percentage of decrease in body mass over the hibernation season was less for Food-Restricted than for LIPX or Control animals. Adequate lipid stores may be essential for the normal development of the reproductive apparatus of male ground squirrels. In the field, animals with insufficient fat stores may forego reproduction and thereby conserve energy for survival.
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雄性和雌性北极地松鼠体重变化和年周期的差异
影响因子：
1.2
作者：
I. Mclean;A. Towns
通讯作者：
A. Towns
DOI：
10.1139/z61-013
发表时间：
1961-01-01
期刊：
CANADIAN JOURNAL OF ZOOLOGY - BACK YEAR PROJECT
影响因子：
--
作者：
PENGELLEY, E;FISHER, KC
通讯作者：
FISHER, KC
温度和光周期对圈养金鬃地松鼠(CITELLUS LATERALIS TESCORUM)年冬眠行为的影响
影响因子：
1.4
作者：
E. T. Pengelley;K. C. Fisher
通讯作者：
K. C. Fisher
影响因子：
2.5
作者：
BRONSON, FH
通讯作者：
BRONSON, FH
DOI：
10.1073/pnas.81.7.2270
发表时间：
1984-01-01
期刊：
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA-BIOLOGICAL SCIENCES
影响因子：
--
作者：
DARK, J;FORGER, NG;ZUCKER, I
通讯作者：
ZUCKER, I