Khlynovskaia I V
Morfologiia. 1996;109(1):76-82.
Rate of thyroid gland development differ significantly on the stages of growth, highest value and recession of quantity in Lemmus sibiricus fetuses. Rate of embryogenic thyroid gland development in the highest value of population quantity reduces compared to that observed during the quantity growth. However, this reduction is displayed in smaller extent than in embryos of Dicrostonyx torquatus of the same population cycle stage. In newborns organ achieves definitive structure in highest value, which differs in 2-3 days from the terms of definitive structure forming in Dyscrostonyx torquatus. On the stage of population quantity recession thyroid gland differentiation speed increases and definitive structure sets in by 17th prenatal day. Comparison of differentiation terms of Lemmus sibiricus and Dicrostonyx torquatus thyroid gland on the stages of growth, highest value and recession of population quantity indicates the presence of principal resemblance between them.
在西伯利亚旅鼠胎儿生长、数量峰值和衰退阶段，甲状腺发育速率差异显著。与数量增长期相比，在种群数量峰值期胚胎甲状腺的发育速率降低。然而，这种降低程度小于处于相同种群周期阶段的环颈旅鼠胚胎。在数量峰值期的新生儿中，甲状腺达到最终结构，与环颈旅鼠形成最终结构的时间相差2 - 3天。在种群数量衰退期，甲状腺分化速度加快，在产前第17天形成最终结构。比较西伯利亚旅鼠和环颈旅鼠甲状腺在生长、数量峰值和衰退阶段的分化时间，表明它们之间存在主要相似性。
