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首页> 外文期刊>Physiological Reports >Ultrasound as a noninvasive tool for monitoring reproductive physiology in male Atlantic salmon ( Salmo salar )
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Ultrasound as a noninvasive tool for monitoring reproductive physiology in male Atlantic salmon ( Salmo salar )

机译:超声作为用于监测男大西洋三文鱼(沙摩酱)生殖生理学的非侵入工具

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摘要

We examined the potential for ultrasound as a noninvasive tool for maturation monitoring in Atlantic salmon ( Salmo salar ) males. Ultrasound examination and measurements were compared to common practices for maturation monitoring such as gonadosomatic index (GSI), sex hormone analysis, and histological analysis of spermatogenesis. There were significant correlations ( R 2 ?=?0.68, P ??0.01) between ultrasound‐based measurements of the left testis and total testes weight and GSI, and ultrasound could be used for noninvasive GSI measurements. Echogenicity of ultrasound images corresponded to the histological stages observed, which added nuance to ultrasound‐based GSI measurements during final weeks preceding stripping. We propose that ultrasound can be used as an alternative to more invasive methods for sexual maturation monitoring in wild and farmed Atlantic salmon males. Using ultrasound technology, we have established a quick and noninvasive method that could reduce the number of stressful handlings and unwanted sacrifice of broodfish required for maturation monitoring in Atlantic salmon males.
机译:我们检查了超声波作为大型鲑鱼(沙摩酱)男性成熟监测的非侵入性工具。将超声检查和测量与成熟监测的常见实践进行比较,例如促进剂指数(GSI),性激素分析以及精子发生的组织学分析。在左睾丸和总睾丸重量和GSI的超声波测量之间存在显着的相关性(R 2?= 0.68,p≤0.01),并且可以将超声用于非侵入性GSI测量。超声图像的echogeniticity对应于观察到的组织学阶段,该阶段在前一周的前几周内增加了基于超声的GSI测量。我们提出,超声波可以用作野生和养殖大西洋鲑鱼类中的性成熟监测更多侵入性方法的替代方法。使用超声技术,我们建立了一种快速而无创的方法,可以减少在大西洋鲑鱼类中成熟监测所需的压力手动和育儿的不需要牺牲的数量。

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