plâncton, artemia sp, dieta artificial e suas combinações no desenvolvimento e sobrevivência do quinguio (carassius auratus) durante a larvicultura plankton, artemia sp, artificial diet and their combinations on the development and survival of goldfish (carassius auratus) during larviculture phase
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2000
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Abstract
O objetivo deste estudo foi verificar a influência do uso de diferentes alimentos sobre o desenvolvimento de larvas de quinguio (Carassius auratus), assim como determinar o melhor manejo alimentar. O delineamento experimental utilizado foi o inteiramente casualizado com cinco tratamentos e quatro repetições. Para análise estatística utilizou-se o teste de Tukey. Utilizaram-se 20 aquários com capacidade para 10 L, sendo estocadas 20 larvas com 5,20 mm de comprimento por aquário. Os tratamentos utilizados foram: somente ração com 56,00% de proteína bruta (R); plâncton (PL); náuplios de Artemia sp (NA), ração + plâncton (R+PL) e ração + náuplios de Artemia sp (R+NA), sendo seu fornecimento à vontade duas vezes ao dia. Houve mortalidade de todos os indivíduos submetidos ao tratamento R. O uso de NA e R+NA proporcionou taxas de sobrevivência superiores (p < 0,05) ao do uso de PL e R+PL. Por outro lado, o peso final médio das larvas que receberam R+NA foi superior ao das tratadas com NA (p < 0,05). Quanto ao comprimento final médio não foi observada diferença significativa entre os tratamentos (p > 0,05). Conclui-se que as diferentes fontes de alimento interferem no desempenho das larvas, sendo o manejo alimentar com o fornecimento de ração + náuplios de Artemia sp o mais adequado para a larvicultura do quinguio
The aim of this study was to verify the influence of different diets on the development of goldfish (Carassius auratus) larvae and determine the best diet management during its larviculture phase. The experimental design was totally randomized with five treatments and four replicatess, using Tukey test for statistical analysis. Twenty 10L-aquariums were used, where twenty larvae with 5.20 mm length were stocked per aquarium. Quinguio larvae were fed daily ration of different diets: ration alone including 56.00% crude protein (R), plankton (PL), Artemia sp nauplii (AN), ration + plankton (R+PL) and ration + Artemia sp nauplii (R+AN), ad libitum twice a day. Treatment R caused the death of all individuals. AN and R+AN diets provided a higher survival rate (p < 0.05) than PL and R+PL diets. On the other hand, the mean final weight of the larvae fed with R+AN was higher (p < 0.05) than that of the larvae fed with AN. As for mean final length no significant difference (p > 0.05) was observed between the different treatments. Under the conditions of the present experiment, the results led to the conclusion that the different food sources influence the larvae performance, and that the ration + Artemia sp nauplii diet management is the most adequate to goldfish larviculture
The aim of this study was to verify the influence of different diets on the development of goldfish (Carassius auratus) larvae and determine the best diet management during its larviculture phase. The experimental design was totally randomized with five treatments and four replicatess, using Tukey test for statistical analysis. Twenty 10L-aquariums were used, where twenty larvae with 5.20 mm length were stocked per aquarium. Quinguio larvae were fed daily ration of different diets: ration alone including 56.00% crude protein (R), plankton (PL), Artemia sp nauplii (AN), ration + plankton (R+PL) and ration + Artemia sp nauplii (R+AN), ad libitum twice a day. Treatment R caused the death of all individuals. AN and R+AN diets provided a higher survival rate (p < 0.05) than PL and R+PL diets. On the other hand, the mean final weight of the larvae fed with R+AN was higher (p < 0.05) than that of the larvae fed with AN. As for mean final length no significant difference (p > 0.05) was observed between the different treatments. Under the conditions of the present experiment, the results led to the conclusion that the different food sources influence the larvae performance, and that the ration + Artemia sp nauplii diet management is the most adequate to goldfish larviculture
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galdioli2000actaplncton,
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| Authors | ;Eliana Maria Galdioli;Wilson Rogério Boscolo;Carmino Hayashi;Giovani Sampaio Gonçalves;Claudemir Martins Soares |
| Journal | proceedings - international symposium on software reliability engineering, issre |
| Year | 2000 |
| DOI |
10.4025/actascibiolsci.v22i0.2861
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| URL | |
| Keywords | Keywords not found |
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