Mass selection for small‐sized cysts in Artemia franciscana produced in Vinh Chau salt ponds, Vietnam. Issue 10 (27th December 2012)

• Record Type: Journal Article
• Authors: Van, Nguyen Thi Hong; Van Hoa, Nguyen; Bossier, Peter; Sorgeloos, Patrick; Van Stappen, Gilbert
• Is Part Of: Aquaculture research. Volume 45:Issue 10(2014:Sep.)
• Page Start: 1591
• Page End: 1599
• Publication Date: 2012-12-27
• Subjects: Aquaculture -- Periodicals; Fishery management -- Periodicals; 639.8
• DOI: 10.1111/are.12105
• Languages: English
• ISSNs: 1355-557X

Abstract

<abstract abstract-type="main" id="are12105-abs-0001"> <title>Abstract</title> <p>Unidirectional mass truncation selection for small‐sized cysts was carried out on brine shrimp (<italic>Artemia franciscana</italic> Kellogg 1906), Vinh Chau strain, Vietnam, through cyst sieving and then culturing the selected individuals (&lt;5% of the population) under field and laboratory conditions over two successive generations (F₁ and F₂). The results showed that at both culture scales, the cyst size of the selected line was smaller (<italic>P</italic> &lt; 0.05) compared with the control (non‐selected) line, illustrating that there was a response to selection. The cyst size decreased about 3% per generation and the accumulated gain on the target trait was in the range 5.82–6.07% at the end of the selection process compared with the base population. The realized heritability estimation (h²) for cyst size was 0.23 ± 0.06 and 0.74 ± 0.19 in the field trials and 0.34 and 0.51 in the laboratory test for the F₁ and F₂ generation respectively. The variations found between the respective trials may be explained as the result of environmental interaction with the selection process, but the results show that a selection program for small‐sized cysts in <italic>Artemia</italic> by mass selection is possible.</p> </abstract>