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Feeding frequency on the production viability of production and quantitative descriptors of parasitism in angelfish/Frequencia alimentar na viabilidade de producao e na descricao quantitativa de parasitas em acara bandeira
Angelfish (Pterophyllum scalare) is a very important species in Brazil's domestic market, however feeding managements differ from fish breeders to aquarists, so the cost of feed and labor become relevant items when cultivating the species. The objective of this research was to assess feeding fr...
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Published in: | Ciência rural 2016-02, p.304 |
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Main Authors: | , , , , , |
Format: | Article |
Language: | Spanish |
Online Access: | Get full text |
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Summary: | Angelfish (Pterophyllum scalare) is a very important species in Brazil's domestic market, however feeding managements differ from fish breeders to aquarists, so the cost of feed and labor become relevant items when cultivating the species. The objective of this research was to assess feeding frequency and feed deprivation based on growth performance, parasite infestation and costbenefit in farming this species. The experiment was conducted in a completely randomized design in a 3x2 factorial scheme with 3 daily feeding levels, 4 meals, 2 meals and 1 meal; with and without feed deprivation and two repetitions. Feed deprivation consisted of offering feed 5 days a week only Feeding twice a day without deprivation and four times a day with or without feed deprivation resulted in higher growth performance than feeding once a day. Monogenean and nematode parasitic loads were not influenced by feeding management. The cost-benefit analysis enabled us to observe that the treatment with the best benefit was the one involving two feedings a day with no deprivation. Thus, considering the parameters mentioned above, we concluded that the two daily feedings with no feed deprivation is the most adequate for farming this specie. Key words: Pterophyllum Scalare, feed management, ornamental-fish. O acara bandeira (Pterophyllum scalare) e uma especie muito importante no mercado interno do Brasil, no entanto o manejo alimentar difere entre os criadores de peixes para os aquaristas, levando em consideracao o custo da alimentacao e mao de obra. O objetivo deste trabalho foi avaliar o efeito da frequencia de alimentacao no desempenho na infestacao do parasita e custo-beneficio em acara bandeira de cultivo. O ensaio foi conduzido em um delineamento inteiramente casualizado em um esquema fatorial 3x2, sendo niveis de alimentacao diarios (4, 2 e 1 refeicoes) e 2 manejos (com e sem privacao de alimentacao), cada tratamento com duas repeticoes. Alimentacao duas vezes por dia sem privacao e quatro vezes por dia, com ou sem alimentacao resultou no desempenho de crescimento, cargas parasitarias de monogeneas e nematoides nao foram influenciados pelo manejo alimentar. A analise de custo-beneficio nos permitiu observar que o tratamento envolvendo duas refeicoes por dia com nenhuma privacao foi melhor. Conclui-se que o tratamento com duas refeicoes diarias sem privacao alimentar e a mais adequada para o cultivo dessa especie. Palavras-chave: Pterophyllum scalare, manejo alimentar, peixes o |
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ISSN: | 0103-8478 |
DOI: | 10.1590/0103-8478cr20141704 |