Propolis extract as a feed additive of the Nile tilapia juveniles

IF 0.4 4区农林科学 Q4 VETERINARY SCIENCES

Arquivo Brasileiro De Medicina Veterinaria E Zootecnia Pub Date : 2023-07-01 DOI:10.1590/1678-4162-12806

E. L. Santos, J. M. Barbosa, F.F. Porto-Neto, J. V. Ludke, T. J. Silva, M. R. Lima, E. C. Soares, Maria C M M Ludke

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Abstract

ABSTRACT This study was conducted to investigate the effects of dietary propolis alcohol extract supplementation on growth performance, digestibility, intestinal morphometry, and physiologic parameters Nile tilápia (Oreochromis niloticus L.) juveniles. For performance experiment and intestinal morphometry, 120 fish averaging 1.41±0.3g were randomly distributed into 24 tanks (70L each) in a closed recirculation water system with constant aeration and biofilter. The animals were distributed into four treatments using a completely randomized design with six replicates per treatment. The treatments consisted of four pellet feeds with different alcohol propolis concentrations extract (AEP) (0.0, 0.5, 1.0 and 1.5gkg-1). The performance experiment period was conducted for 45 days. For the digestibility experiment, an inert marker in the feed and the adapted Guelph feces collecting system were used. The results showed no differences in the performance parameters, crude protein apparent digestibility and dry matter of the feeds, intestinal morphometry, and physiologic parameters. However, there was an increasing linear effect on the energy digestibility with increasing PAE concentrations in the fish feed. The usage of the propolis extract supplementation levels of 1% is recommended for optimum effect on villus morphometry in Nile tilapia.

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蜂胶提取物作为尼罗罗非鱼幼鱼饲料添加剂的研究

摘要本研究旨在研究日粮中添加蜂胶醇提取物对尼罗罗非鱼（Oreochromis niloticus L.）幼鱼生长性能、消化率、肠道形态计量学和生理参数的影响。在性能实验和肠道形态测量方面，将120条鱼平均1.41±0.3g随机分配到24个水箱中（每个70L），该水箱位于具有恒定曝气和生物过滤器的封闭再循环水系统中。使用完全随机设计将动物分为四个治疗组，每个治疗组有六个重复。采用四种不同浓度的蜂胶醇提取物（AEP）（0.0、0.5、1.0和1.5gkg-1）颗粒饲料进行处理，试验期为45天。对于消化率实验，使用饲料中的惰性标记物和改良的圭尔夫粪便收集系统。结果表明，饲料的性能参数、粗蛋白表观消化率和干物质、肠道形态计量学和生理参数没有差异。然而，随着鱼类饲料中PAE浓度的增加，对能量消化率的线性影响越来越大。建议使用1%的蜂胶提取物补充水平，以达到对尼罗罗非鱼绒毛形态测定的最佳效果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Arquivo Brasileiro De Medicina Veterinaria E Zootecnia 农林科学-兽医学

CiteScore

0.80

自引率

25.00%

发文量

111

审稿时长

9-18 weeks

期刊介绍： Publica artigos originais de pesquisa sobre temas de medicina veterinária, zootecnia, tecnologia e inspeção de produtos de origem animal e áreas afins relacionadas com a produção animal. Atualmente a revista mantém 628 permutas (419 internacionais e 209 nacionais), sendo um verdadeiro suporte para o recebimento de periódicos pela Biblioteca da Escola. A partir de 1999, a Escola de Veterinária delegou à FEP MVZ Editora o encargo do gerenciamento e edição de todas suas publicações, inclusive do Arquivo, ficando somente com o apoio logístico (instalações, equipamentos, pessoal etc.). O apoio financeiro é exercido pelo CNPq/FINEP e pela própria FEP MVZ.