在sao保罗州南部的网箱中生产pacus和tambacus

A. Leonardo, G. R. Lattanzi, G. Bueno, A. E. Baccarin, R. V. R. Neto
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As medias das variaveis analisadas (± desvio padrao) foram: oxigenio dissolvido, 8,97 ± 2,46 mg L-1; temperatura maxima e minima da agua 27,20 ± 2,08 e 21,38 ± 1,34 oC, pH 6,45 ± 0,74, transparencia da agua 96,67 ± 0,70 cm, alcalinidade total 19,26 ± 9,40 mg CaCO3 L-1, condutividade eletrica 49,38 ± 3,60 μS cm-1, nitrogenio amoniacal total 0,002 ± 0,004 mg L-1, fosforo total dissolvido 0,01 ± 0,01 mg L-1, e indice de estado trofico (IET) calculado foi de 49,3 ± 7,3. Concluimos que a criacao de pacu e de tambacu em tanque rede nao comprometeu a qualidade da agua do reservatorio rural. Entretanto as boas praticas de manejo zootecnico e o monitoramento ambiental devem ser realizados para o desenvolvimento de uma aquicultura sustentavel. EnglishThe study aimed to evaluate physical and chemical water conditions of a rural reservoir utilized for cage fish culture in Pariquera-Acu, SP. In this place 12 cages of 4 m3 were installed and stocked with 300 pacus e 300 tambacus per 12,5 kg/m3, during the period of 180 days. To determine reservoir water quality five points of collection were analyzed every month: water supply, fish rearing area divided into three depths (10 cm, 70 cm and 150 cm) and effluent. Averages of analyzed parameters ± standard deviation were: dissolved oxygen, 6.83 ± 0.7 mg O2D L-1; maximum and minimum temperature, 27,20 ± 2,08 and 21,38 ± 1,34 oC, respectively; hydrogenionic potential, 6,45 ± 0,74; transparency, cm; total alkalinity, 19,26 ± 9,40 mg CaCO3 L-1; electric conductivity, 49,38 ± 3,60 μS cm-1; total ammonia, 0,002 ± 0,004 mg L-1, total dissolved phosphorus 0,01 ± 0,01 mg L-1.Calculated Trophic Estate Index was 49,3 ± 7,3 . We conclude that pacus e tambacus cage culture did not compromise the water quality of rural reservoir. 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引用次数: 0

摘要

espanol对SP Pariquera Acu一个用于养鱼的农村水坝的水的物理和化学条件进行了评估。在180天的时间里,在这个地方安装了12个4立方米的网槽,储存了300个pacus和300个12.5kg/m3的tambacus。为了确定大坝的水质,分析了五个月收集点:供水、养殖区,分为三个点(10厘米、70厘米和150厘米深)和出水。分析变量的平均值(±标准差)为:溶解氧8.97±2.46 mg L-1;最高和最低水温27,20±2,08和21,38±1.34℃,pH 6,45±0,74,水透明度96,67±0,70 cm,总碱度19,26±9,40 mg CaCO3 L-1,电导率49,38±3,60μS cm-1,总氨氮0002±0004 mg L-1,总溶解磷0,01±0,01 mg L-1。计算的营养状态指数(IET)为49,3±7,3。我们得出的结论是,在网络水箱中创建pacu和tambacu并没有影响农村水库的水质。然而,为了发展可持续的水产养殖,应该实行动物管理和环境监测的良好做法。警告律师研究旨在评估SP Pariquera Acu一个用于网箱养鱼的农村水库的物理和化学水条件。在180天的时间里,在这个地方安装了12个4立方米的网箱,每12.5公斤/立方米放养300只pacus和300只tambacus。为了确定水库水质,每月分析五个收集点:供水、分为三个深度(10厘米、70厘米和150厘米)的养鱼区和出水。分析参数的平均值±标准偏差为:溶解氧6.83±0.7mg O2D L-1;最高和最低温度分别为27,20±2,08和21,38±1.34℃;氢离子电势,6,45±0,74;透明度,cm;总碱度,19,26±9.40mg CaCO3 L-1;电导率,49,38±3.60μS cm-1;总氨为0002±0004 mg L-1,总溶解磷为0.01±0.01 mg L-1。计算的营养价值指数为49.3±7.3。结果表明,pacus和tambacus网箱养殖对农村水库水质没有影响。然而,为了实现可持续的鱼类养殖,应遵循动物生产良好做法和环境监测。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Produção de pacus e tambacus em tanques-rede na região Sul do Estado de São Paulo
espanolForam avaliadas as condicoes fisicas e quimicas da agua de uma represa rural utilizada para piscicultura em tanques rede, em Pariquera-Acu, SP. Neste local foram instalados 12 tanques rede de 4 m3, estocados com 300 pacus e 300 tambacus sendo 12,5 kg/m3, durante o periodo de 180 dias. Para determinar a qualidade da agua da represa, foram analisados cinco pontos de coleta mensalmente: abastecimento, area de criacao, dividida em tres pontos (10 cm, 70 cm e 150 cm de profundidade) e efluente. As medias das variaveis analisadas (± desvio padrao) foram: oxigenio dissolvido, 8,97 ± 2,46 mg L-1; temperatura maxima e minima da agua 27,20 ± 2,08 e 21,38 ± 1,34 oC, pH 6,45 ± 0,74, transparencia da agua 96,67 ± 0,70 cm, alcalinidade total 19,26 ± 9,40 mg CaCO3 L-1, condutividade eletrica 49,38 ± 3,60 μS cm-1, nitrogenio amoniacal total 0,002 ± 0,004 mg L-1, fosforo total dissolvido 0,01 ± 0,01 mg L-1, e indice de estado trofico (IET) calculado foi de 49,3 ± 7,3. Concluimos que a criacao de pacu e de tambacu em tanque rede nao comprometeu a qualidade da agua do reservatorio rural. Entretanto as boas praticas de manejo zootecnico e o monitoramento ambiental devem ser realizados para o desenvolvimento de uma aquicultura sustentavel. EnglishThe study aimed to evaluate physical and chemical water conditions of a rural reservoir utilized for cage fish culture in Pariquera-Acu, SP. In this place 12 cages of 4 m3 were installed and stocked with 300 pacus e 300 tambacus per 12,5 kg/m3, during the period of 180 days. To determine reservoir water quality five points of collection were analyzed every month: water supply, fish rearing area divided into three depths (10 cm, 70 cm and 150 cm) and effluent. Averages of analyzed parameters ± standard deviation were: dissolved oxygen, 6.83 ± 0.7 mg O2D L-1; maximum and minimum temperature, 27,20 ± 2,08 and 21,38 ± 1,34 oC, respectively; hydrogenionic potential, 6,45 ± 0,74; transparency, cm; total alkalinity, 19,26 ± 9,40 mg CaCO3 L-1; electric conductivity, 49,38 ± 3,60 μS cm-1; total ammonia, 0,002 ± 0,004 mg L-1, total dissolved phosphorus 0,01 ± 0,01 mg L-1.Calculated Trophic Estate Index was 49,3 ± 7,3 . We conclude that pacus e tambacus cage culture did not compromise the water quality of rural reservoir. However animal production good practices and environmental monitoring should be followed for a sustainable fish culture.
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来源期刊
Archivos de Zootecnia
Archivos de Zootecnia Agricultural and Biological Sciences-Animal Science and Zoology
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0.50
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期刊介绍: Archivos de Zootecnia is a quarterly, multilingual, international science journal, published by the University of Cordoba and the Asociación Iberoamericana de Zootecnia. The journal was founded in 1952 as the voice for the Zootechnics Institute of the Veterinary Faculty at the University of Cordoba. Its aim is to disseminate results from research into animal production and related areas, giving special attention to farming systems in developing areas, their local breeds and alternative production methods.
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