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Menu, Bruno; Peruzzi, Stefano; Vergnet, Alain; Vidal, Marie-odile; Chatain, Beatrice. |
The objective of this study was to develop a rapid and effective method of sexing juvenile sea bass with minimum labour and material. To this end, the gonad squash mount technique was applied along with macroscopic techniques for sexing a large number of experimental fish at the age of 215-275 days post fertilization (p.f.). At this age, 90% of the 3894 fish could be unambiguously sexed by macroscopic examination of their gonads, whereas the remaining proportion was identified using squash mount preparations (10%). The accuracy of the observations was measured up to classical histology procedures. Undifferentiated fish accounted for 0.1% of the total population only. The application of the squash mount technique holds out the prospect of considerable... |
Tipo: Text |
Palavras-chave: Histology; Squash; Juvenile; Gonads; Seabass; Dicentrarchus labrax. |
Ano: 2005 |
URL: http://archimer.ifremer.fr/doc/2005/publication-378.pdf |
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Marouelli,Waldir A; Amaro,Geovani B; Braga,Marcos B. |
ABSTRACT The aim of this work was to evaluate, under the Cerrado conditions of Central Brazil, the effect of different amounts of water and nitrogen (N) on the production performance of hybrid squash Tetsukabuto. Five water depths were tested in 2008 (185, 265, 343, 408 and 477 mm) and four in 2009 (286, 360, 430 and 540 mm), using line source sprinkler irrigation. The doses of N (0, 50, 100, 150 and 200 kg/ha) were the same in both experiments. The experimental design was a split-plot strip block with three replications. Fruit productivity was affected by the interaction between water depths and doses of N. Higher marketable productivity was observed on plants cultivated with the use of 477 and 492 mm of water and 105 and 146 kg/ha of N in 2008 and 2009,... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cucurbita maxima x C. moschata; Squash; Sprinkler line.. |
Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362017000300402 |
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