消化系统的个体发生和幼虫蛋白酶谱分析——巨臀脂鲤（Pseudoplatystoma reticulatum ，Siluriformes：Pimelodidae）及其杂交种（Pseudoplatystoma corruscans × Pseudoplatystoma reticulatum）。
Ontogeny of the digestive system and the profile of proteases in larvae of cachara (Pseudoplatystoma reticulatum Siluriformes: Pimelodidae) and its hybrid (Pseudoplatystoma corruscans × Pseudoplatystoma reticulatum).
机构信息
Centro de Aquicultura da Universidade Estadual Paulista "Júlio de Mesquita Filho" (CAUNESP), Universidade Estadual Paulista "Júlio de Mesquita Filho (UNEP),Jaboticabal, Brazil.
Embrapa Pesca e Aquiculturae, Prolongamento da Avenida NS, Palmas, Brazil.
出版信息
J Fish Biol. 2021 Sep;99(3):1135-1139. doi: 10.1111/jfb.14771. Epub 2021 Jun 25.
The development of the digestive system and digestive proteases was studied in cachara (Pseudoplatystoma reticulatum) and its hybrid (P. reticulatum × Pseudoplatystoma corruscans) during the first 25 days after fertilization. Both groups presented a fast and similar development of the digestive system, and the unspecific alkaline protease profile suggested that the digestive capacity of hybrid larvae is higher than that of cachara after the last half of the studied phase. The activities of trypsin and chymotrypsin were similar and observed since the oocyte. These observations suggested that cachara and its hybrid has similar digestive capacity and digestive system development.
本研究旨在探讨脂鲤（Pseudoplatystoma reticulatum）及其杂交种（P. reticulatum×Pseudoplatystoma corruscans）在受精后第 25 天内消化系统和消化蛋白酶的发育情况。结果表明，两组的消化系统均发育迅速且相似，非特异性碱性蛋白酶图谱表明，在研究阶段的后半段，杂交种幼虫的消化能力强于脂鲤。自卵期开始，胰蛋白酶和糜蛋白酶的活性就相似并可被检测到。这些结果表明，脂鲤及其杂交种具有相似的消化能力和消化系统发育。
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