Results 11 to 20 of about 55 (45)
Seleção de fêmeas de pacu para indução hormonal: efeito da idade e dos métodos de avaliação
Boletim do Instituto de Pesca, 2016 Neste estudo, investigamos o ciclo reprodutivo e a época de desova de fêmeas "velhas†(FVs) e fêmeas "jovens†(FJs) de P. mesopotamicus, visando melhorar o processo de seleção de peixes para a indução hormonal.
Marianne SCHORER +2 more
doaj +1 more source
Ciência Rural, 2000 Several studies have suggested that the caudal neurosecretory system could act on fish reproduction. The aim of this study was to compare the effect of urophysial extract (UE) and carp pituitary homogenate (CPH) on the induction of spawning in Hoplias ...
Everton Rodolfo Behr +4 more
doaj +1 more source
Biotechnology applied to salmoniculture Biotecnologia aplicada à salmonicultura
Revista Brasileira de Zootecnia, 2009 This work presents a conceptual analysis of the main biotechnologies used in Chilean salmoniculture, which is based on the production of Atlantic salmon (Salmo salar, 356.407 t),silver salmon or coho (Oncorhynchus kisutch, 116.481 t), (O.
Iván Valdebenito Isler
doaj +1 more source
Recent advances in fish hatchery management Avanços recentes em larvicultura
Revista Brasileira de Zootecnia, 2010 The advancement of aquaculture has often been bottlenecked because of the lack of seed, but once that bottleneck was overcome there was rapid growth. Recent examples of advances in hatchery technology leading to increased production are sea bream and ...
Ronald P. Phelps
doaj +1 more source
Viabilidade de desovas induzidas de Holothuria (Halodeima) grisea
Agropecuária CatarinenseSea cucumbers play fundamental ecological roles in marine ecosystems, but due to their high commercial value, several species have been subject to intense fishing exploitation. The development of technologies for cultivating sea cucumbers emerges as a sustainable alternative, with the induction of spawning being an essential step for larviculture and ...
Guilherme Sabino Rupp +3 more
openaire +1 more source
Brazilian Archives of Biology and Technology, 2003 The present study analyzed the reproduction of wild-caught Penaeus paulensis in relation to its molt cycle. The experimental design consisted of two treatments (continuous water flow and batch renewal) with two replicates.
Sílvio Peixoto +2 more
doaj +1 more source
Brazilian Archives of Biology and Technology, 2001 Different light intensities were tested during the larval rearing of fat snook (Centropomus parallelus) to evaluate its influence on survival and functional swim bladder rate.
Vinicius Ronzani Cerqueira +1 more
doaj +1 more source
Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2006 The processes of ovarian regression and follicular atresia which reproduction was not induced by hormone in confined cachara, Pseudoplatystoma fasciatum, were investigated. The macro and microscopic characteristics (oocytes diameter and histology) of the
A.F.G. Leonardo +3 more
doaj +1 more source
Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2007 Determinou-se a razão ótima de espermatozóides por ovócitos da piabanha Brycon insignis, utilizando-se dois machos e duas fêmeas da espécie, submetidos ao procedimento de desova induzida.
E. Shimoda +4 more
doaj +1 more source
Boletim do Instituto de Pesca, 2018 Em condições de cativeiro, a maioria das espécies migradoras não desova se não obtiver os estímulos necessários para completar o processo reprodutivo. Desta forma, inúmeros trabalhos vêm sendo desenvolvidos para encontrar a melhor técnica de indução í
David REYNALTE-TATAJE +3 more
doaj