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| Santos,Alexandra Inês; Ribeiro,Ricardo Pereira; Vargas,Lauro; Mora,Freddy; Alexandre Filho,Luiz; Fornari,Darci Carlos; Oliveira,Sheila Nogueira de. |
| The objective of this study was to estimate genetic parameters for survival and weight of Nile tilapia (Oreochromis niloticus), farmed in cages and ponds in Brazil, and to predict genetic gain under different scenarios. Survival was recorded as a binary response (dead or alive), during harvest time in the 2008 grow-out period. Genetic parameters were estimated using a Bayesian mixed linear-threshold animal model via Gibbs sampling. The breeding population consisted of 2,912 individual fish, which were analyzed together with the pedigree of 5,394 fish. The heritabilities estimates, with 95% posterior credible intervals, for tagging weight, harvest weight and survival were 0.17 (0.09-0.27), 0.21 (0.12-0.32) and 0.32 (0.22-0.44), respectively. Credible... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Oreochromis niloticus; Correlation; Fish genetic improvement; Gibbs sampling; GIFT strain; Heritability. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2011000100005 |
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| Fornari,Darci Carlos; Streit Junior,Danilo Pedro; Galo,Juliana Minardi; Guerreiro,Luís Jayme; Povh,Jayme Aparecido; Barrero,Nelson Mauricio Lopera; Oliveira,Diego de; Ribeiro,Ricardo Pereira. |
| The objective of this work was to evaluate the effect of different cryoprotectants on the viability of dourado (Salminus brasiliensis) embryos. Ten cryoprotectant solutions were tested. For each solution, 300 embryos were selected at the closing of the blastopore stage, and 300 more embryos were used as a negative control. After cooling (-8ºC for 6 hours), the embryos were rehydrated directly in the incubator until hatching. The best result is obtained with the cryoprotectant solution containing 9% methanol associated with 17% sucrose, resulting in a larvae hatching rate of 67.06%. |
| Tipo: Info:eu-repo/semantics/report |
Palavras-chave: Salminus brasiliensis; Cryopreservation; Fish embryo; Embryo preservation; Larvae eclosion. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2013000800060 |
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