کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2423495 1552917 2010 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Vertebral deformities in triploid Atlantic salmon (Salmo salar L.) underyearling smolts
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم آبزیان
پیش نمایش صفحه اول مقاله
Vertebral deformities in triploid Atlantic salmon (Salmo salar L.) underyearling smolts
چکیده انگلیسی

This study investigated the prevalence of vertebral deformities in triploid and diploid Atlantic salmon smolts. Four full-sibling families were either subjected to hydrostatic pressure (655 bar, 6.25 min, 8 °C) (triploid) 37 min post-fertilization, or were maintained as untreated controls (diploid), and then reared to the smolt stage. Some 800 fish (100 per ploidy/family group) were palpated for vertebral deformities, and 480 (60 per ploidy/family group) of these were selected at random for radiography and evaluation for vertebral deformities. There was a significantly higher prevalence of triploid individuals classified as spinally deformed during palpation (triploids; 1–3%, diploids; 0–1%), and of individuals with one or more deformed vertebrae on radiographs (triploids; 30–35%, diploids; 8–13%). The trunk region (V9-30) of the vertebral column was the predominant location for deformities in triploids, with vertebra number 24 being the most often affected. Of the triploids, 7.6% had a malformation in this particular vertebra, which is located beneath the dorsal fin.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Aquaculture - Volume 309, Issues 1–4, 22 November 2010, Pages 131–136
نویسندگان
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