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首页> 外文期刊>Asian Journal of Microbiology, Biotechnology and Environmental Science >ALTERATIONS IN NUTRITIONAL INDICES OF SILKWORM LARVAE, BOMBYX MORI (L) ON ADMINISTRATION OF THYROXINE HORMONE
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ALTERATIONS IN NUTRITIONAL INDICES OF SILKWORM LARVAE, BOMBYX MORI (L) ON ADMINISTRATION OF THYROXINE HORMONE

机译：家蚕幼虫的营养指标对酪氨酸激素管理的影响

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The silkworm, Bombyx mori (L) hybrid (PMx NB_4D_2) were fed on V, variety of mulberry leaves treated with thyroxine hormone (lmL of thyroxine solution sprayed on 5g. of mulberry leaves) in every day every feeding from the first day of III instar to end of the V instar. The effect of thyroxine on ingesta, consumption index, egesta, digesta and approximate digestibility was analysed in III instar, IV instar and V instar silkworm larvae on treated with thyroxine hormone. In III instar the ingesta was recorded significant reduction when compared to control. In contrast, the IV and V instar larvae exhibited significant elevation over control. The consumption index of the III and IV instar silkworm larvae showed non significant change with significant increase in V instar over control. The egesta was significantly elevated in III, IV instars and decreased in V instar larvae over control. The digesta exhibited significant reduction in III instar larvae, where as in IV and V instars the same was recorded significant increase on administration of thyroxine over control. The approximate digestibility showed non significant change in III instar with a significant increase in IV and V instar larvae over control. The above results envisages that the inductionof thyroxine hormone induced significant alterations in digestion of food by silkworm larvae in different developmental stages leading to the assimilation of nutrients by increasing nutritional efficiency to improve the cocoon production.
机译：从第三天的第一天开始，每天在蚕上饲喂家蚕，家蚕（L）杂种（PMx NB_4D_2），用甲状腺素激素处理过的各种桑叶（将1mL的甲状腺素溶液喷在5g桑叶上）。 instar至V instar的末尾。在甲状腺素处理后的三龄，四龄和五龄家蚕幼虫中，分析了甲状腺素对摄入量，食用指数，食用菌，消化物和近似消化率的影响。与对照组相比，在三龄期中，摄食量明显减少。相反，IV和V龄幼虫显示出明显高于对照。 III龄和IV龄家蚕幼虫的食用指数显示无显着变化，而V龄的幼虫的过度摄入显着高于对照。第三代，第四代幼虫的牙菌根明显高于对照组，而第五代幼虫的幼虫减少。食糜在III龄幼虫中显示出显着减少，而在IV和V龄幼虫中，在对照中施用甲状腺素后，记录的消化物显着增加。近似的消化率显示III龄幼虫无显着变化，IV和V幼龄幼虫比对照明显增加。上述结果设想甲状腺素的诱导在不同的发育阶段引起蚕幼虫食物消化的显着改变，从而通过增加营养效率以改善茧的产量而吸收养分。

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