oar-mir-30d: Oar-mir-30d is a stable miRNA that was used as a reference for normalization in several studies [PMC6339376] [PMC9428447] [PMC6206264]. It was found to be one of the two most stable miRNAs, along with oar-miR-191, in a study that performed normalization using these two reference miRNAs [PMC6339376]. Another study also selected oar-mir-30d as one of the internal standard controls due to its expression stability in the samples [PMC6339376]. Additionally, oar-mir-30d was found to be upregulated between C16 and P16, along with several other miRNAs, while some other miRNAs were downregulated during this period [PMC9428447]. Furthermore, oar-mir-30d and oar-miR-379-5p were found to be higher in P16 compared to C16 [PMC9428447]. In terms of target genes, oar-mir-30d was shown to target WNT2 and BMP4 genes, which are hub genes involved in various biological processes [PMC9428447]. Additionally, oar-mir-30d was found to target TLR2 and TLR4 genes involved in innate immune response processes [PMC9428447]. References: [PMC6339376] - Reference for the first sentence. [PMC9428447] - Reference for the third sentence. [PMC6206264] - Reference for the seventh sentence.