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| Bernardes Júnior,Jurandir Joaquim; Nakagome,Fernando Kojima; Mello,Giovanni Lemos de; Garcia,Silvano; Amaral Júnior,Hilton. |
| The objective of this work was to evaluate the efficacy of eugenol as an anesthetic for juvenile common snook, and to determine the minimum effective concentration for use in handling procedures. In the first trial, juvenile common snook were subjected to immersion baths at 25, 50, 75, 100, 125, and 150 mg L-1 eugenol concentrations, after which induction and recovery times were evaluated. In the second experiment, the lethal exposure time (LT50) at 75 mg L-1 was estimated. Minimum effective eugenol concentration was 50 mg L-1, andthe stage of deep anesthesia and recovery were, respectively, reached at 126.3 and 208.8 s. At 75 mg L-1, LT50 was 1,314 s, and induction time and recovery were also satisfactory; however, fish cannot tolerate over 229 s exposure. |
| Tipo: Info:eu-repo/semantics/report |
Palavras-chave: Centropomus undecimalis; Anesthesia; Fish farming; Fish handling. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2013000800052 |
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| Mello Junior,Carlos Cesar de; Delsol,Gael Yvan Leclercq; Motte,Emmerik; Escobar,Virna Alexia Cedeño; Rey,Pedro Filipe; Martins,Mauricio Laterça; Arana,Luis Alejandro Vinatea; Mello,Giovanni Lemos de; Farias,Alvaro Pestana de; Arguello,Xavier Antonio Serrano; Maridueña,John Erick Montaño. |
| The objective of this work was to select surviving breeders of Litopenaeus vannamei from white spot syndrome virus (WSSV) outbreak, adapted to local climatic conditions and negatively diagnosed for WSSV and infectious hypodermal and hematopoietic necrosis virus (IHHNV), and to evaluate if this strategy is a viable alternative for production in Santa Catarina, Brazil. A total of 800 males and 800 females were phenotypically selected in a farm pond. Nested-PCR analyses of 487 sexually mature females and 231 sexually mature males showed that 63% of the females and 55% of the males were infected with IHHNV. Animals free of IHHNV were tested for WSSV, and those considered double negative were used for breeding. The post-larvae produced were stocked in nine... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Litopenaeus vannamei; Breeding; Epidemiology; Nested-PCR. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2011000500011 |
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