Smith L M, Appel A G, West M S, Mack T P, Keever G J
Department of Entomology, Auburn University, AL 36849-5413, USA.
J Med Entomol. 1996 Nov;33(6):926-32. doi: 10.1093/jmedent/33.6.926.
We tested the hypothesis that presence and color of shed follicles in ovarioles of smokybrown cockroaches, Periplaneta fuliginosa (Serville), were correlated with the number of oothecae deposited in the laboratory. There were no shed follicles in females not having oviposited, whereas all females that had deposited 1-4 oothecae had shed follicles or resorption bodies, and females that had deposited > or = 5 oothecae had only shed follicle cells in the base of ovarioles. Other important correlates of female age (days after adult eclosion) were abdominal fat-free, thoracic fat and fat-free masses, and leg fat mass. Oocyte length could be substituted for oocyte fat and fat-free mass because these variables were correlated with oocyte length. Crop mass and delay in dissection after oothecal deposition were not correlated to female age or number of oothecae. Mass of body fractions (fat and fat-free) increased as females deposited additional oothecae. A generalized linear model predicted that as thoracic fat mass increased the number of oocytes already deposited by a female increased. In addition, the model predicted that red follicles would be found in females having deposited 1-3 oothecae and yellow follicles were predicted to be found in females having deposited > 2 oothecae.
黑胸大蠊（Periplaneta fuliginosa (Serville)）卵巢小管中脱落卵泡的存在与否及颜色，与在实验室中产出的卵鞘数量相关。未产卵的雌虫没有脱落卵泡，而所有产出1 - 4个卵鞘的雌虫都有脱落卵泡或吸收体，产出≥5个卵鞘的雌虫在卵巢小管基部仅有脱落的卵泡细胞。雌虫年龄（羽化后天数）的其他重要相关因素包括腹部去脂质量、胸部脂肪和去脂质量以及腿部脂肪质量。卵母细胞长度可以替代卵母细胞脂肪和去脂质量，因为这些变量与卵母细胞长度相关。嗉囊质量以及卵鞘产出后解剖的延迟与雌虫年龄或卵鞘数量无关。随着雌虫产出更多卵鞘，身体各部分（脂肪和去脂）的质量增加。一个广义线性模型预测，随着胸部脂肪质量增加，雌虫已产出的卵母细胞数量会增加。此外，该模型预测，产出1 - 3个卵鞘的雌虫会有红色卵泡，产出>2个卵鞘的雌虫预计会有黄色卵泡。
