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| Provedor de dados: |
Animal Sciences
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| País: |
Brazil
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| Título: |
Growth performance and intestinal histomorphology of Nile tilapia juveniles fed probiotics - doi: 10.4025/actascianimsci.v35i4.18610
Growth performance and intestinal histomorphology of Nile tilapia juveniles fed probiotics - doi: 10.4025/actascianimsci.v35i4.18610
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| Autores: |
Nakandakare, Ivan Bernardoni; Instituto de Pesca, Agência Paulista de Tecnologia dos Agronegócios
Iwashita, Marina Keiko Pieroni; Universidade Estadual Paulista “Júlio de Mesquita Filho”
Dias, Danielle de Carla; Universidade Estadual Paulista “Júlio de Mesquita Filho”
Tachibana, Leonardo; Instituto de Pesca, Agência Paulista de Tecnologia dos Agronegócios
Ranzani-Paiva, Maria José Tavares; Instituto de Pesca, Agência Paulista de Tecnologia dos Agronegócios
Romagosa, Elizabeth; APTA - São Paulo
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| Data: |
2013-05-27
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| Ano: |
2013
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| Palavras-chave: |
Nutrição
Probiotico
Morfologia intestino
Tilápia Bacillus
Intestine
Feed processing
Supplement Bacillus
Intestine
Feed processing
Supplement
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| Resumo: |
The objective of this study was to assess the growth performance and the histomorphometric characterization of the middle intestine of GIFT strain Nile tilapia, Oreochromis niloticus juveniles fed probiotics, added either before or after the feed processing. The experimental design was completely randomized, with five treatments and five replications: pelleted feed without any probiotic; pelleted feed with inclusion of probiotic before the processing; pelleted feed with inclusion of probiotic after the processing; extruded feed without any probiotic and extruded feed with inclusion of probiotic after the processing. Two hundred and fifty juveniles were distributed in 25 aquaria (20L) and fed for 63 days. Differences in the mean values of total weight were found at the end of the experiment. After 42 days of feed intake, significant differences in feed conversion were verified for treatments with extruded diets when compared to the pelleted ones. The fishes fed diets supplemented with probiotic presented increase in the thickness of the epithelium of the intestine. The best zootechnical performance was observed in the extruded diet supplemented with probiotic added after the feed processing. The inclusion of 4.0 x 108 CFU g-1 of Bacillus subtilis and 4.0 x 108 CFU g-1 of Bacillus toyoi in both the pelleted and the extruded diets promoted an increase in the thickness of the epithelial layer of the middle intestine.
The objective of this study was to assess the growth performance and thehistomorphometric characterization of the middle intestine of GIFT strain Nile tilapia, Oreochromis niloticusjuveniles fed probiotics, added either before or after the feed processing. The experimental design wascompletely randomized, with five treatments and five replications: pelleted feed without any probiotic;pelleted feed with inclusion of probiotic before the processing; pelleted feed with inclusion of probioticafter the processing; extruded feed without any probiotic and extruded feed with inclusion of probioticafter the processing. Two hundred and fifty juveniles were distributed in 25 aquaria (20L) and fed for 63days. Differences in the mean values of total weight were found at the end of the experiment. After 42 daysof feed intake, significant differences in feed conversion were verified for treatments with extruded dietswhen compared to the pelleted ones. The fishes fed diets supplemented with probiotic presented increasein the thickness of the epithelium of the intestine. The best zootechnical performance was observed in theextruded diet supplemented with probiotic added after the feed processing. The inclusion of 4.0 x 108 CFU g-1 ofBacillus subtilis and 4.0 x 108 CFU g-1 of Bacillus toyoi in both the pelleted and the extruded diets promoted anincrease in the thickness of the epithelial layer of the middle intestine.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Português
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| Identificador: |
http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/18610
10.4025/actascianimsci.v35i4.18610
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| Editor: |
Editora da Universidade Estadual de Maringá
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| Relação: |
http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/18610/pdf
http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/18610/pdf_1
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| Formato: |
application/pdf
application/pdf
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| Fonte: |
Acta Scientiarum. Animal Sciences; v. 35, n. 4 (2013); 365-370
Acta Scientiarum. Animal Sciences; v. 35, n. 4 (2013); 365-370
1807-8672
1806-2636
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| Direitos: |
DECLARATION OF ORIGINALITY AND CESSATION OF COPYRIGHTI Declare that current article is original and has not been submitted for publication, in part or in whole, to any other national or international journal. I also declare that once published in the Acta Scientiarum. Animal Sciences, a publication of the Universidade Estadual de Maringá, it will not be submitted by me or by any co-author to any scientific communication mean. In my name and in the name of co-authors, I shall cede the copyright of the above mentioned article to the Universidade Estadual de Maringá and I declare that I know that the non-observance of this norm may make me liable for the penalties contemplated in the Law for the Protection of Authors’ Rights (Act 9609 of the 19th February 1998).
DECLARAÇÃO DE ORIGINALIDADE E CESSÃO DE DIREITOS AUTORAIS Declaro que o presente artigo é original, não tendo sido submetido à publicação em qualquer outro periódico nacional ou internacional, quer seja em parte ou em sua totalidade. Declaro, ainda, que uma vez publicado na revista Acta Scientiarum. Animal Sciences, editada pela Universidade Estadual de Maringá, o mesmo jamais será submetido por mim ou por qualquer um dos demais co-autores a qualquer outro meio de divulgação científica. Através deste instrumento, em meu nome e em nome dos demais co-autores, porventura existentes, cedo os direitos autorais do referido artigo à Universidade Estadual de Maringá e declaro estar ciente de que a não observância deste compromisso submeterá o infrator a sanções e penas previstas na Lei de Proteção de Direitos Autorias (Nº9609, de 19/02/98).
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