频率和饲养时间对白鼻病毒中心孢幼鱼生长、食物利用、体细胞指标和存活率的影响

IF 0.5 4区 生物学 Q4 MARINE & FRESHWATER BIOLOGY
María Isabel Abdo-de la Parra, L. E. Rodríguez-Ibarra, L. Ibarra-Castro, J. M. Martínez-Brown, G. Velasco-Blanco
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Se determino el peso ganado (PG), la tasa de crecimiento (TC), la tasa especifica de crecimiento (TEC), la tasa de conversion alimenticia (TCA), la tasa de eficiencia alimenticia (TEA), el coeficiente de variacion (CV), el indice hepatosomatico (IH), el indice de grasa peritonea l (IGP) y la supervivencia (S) de los juveniles. La TC y la TEC de los juveniles alimentados 3 veces al dia, independientemente de las horas de alimentacion, no presentaron diferencias significativas con respecto a los resultados obtenidos para los juveniles alimentados 5 veces al dia. La TCA fue significativamente mayor y la TEA significativamente menor en los tratamientos con juveniles alimentados una sola vez al dia en comparacion con el resto de los tratamientos. No se encontraron diferencias significativas en CV, IH y S entre los tratamientos. El IGP solo presento diferencias significativas entre los juveniles alimentados 1 y 5 veces al dia. Con base en los resultados obtenidos en el presente estudio, se sugiere que los juveniles de C. viridis se alimenten 3 veces al dia, con un intervalo de 6 h entre cada toma. Estos resultados ayudaran en el desarrollo de la biotecnologia de cultivo de esta especie. EnglishThe Pacific white snook, \"Centropomus viridis\", is considered a species with high farming potential in Mexico due to its high economic value and overall demand in the national market. Growth in farmed fish is largely determined by the dietary regimen, which includes feeding frequency, rate, time, and cycle. The aim of the present study was to determine the feeding frequency and appropriate feeding time for farmed C. viridis juveniles in order to optimize growth and survival. Juveniles weighing 0.36 ± 0.01 g were used to evaluate 1 and up to 5 ad-libitum feeding frequencies per day, with 3 to 24-h intervals, for 6 weeks. Gained weight (GW), growth rate (GR), specific growth rate (SGR), food conversion ratio (FCR), feeding efficiency rate (FER), coefficient of variation (CV), hepatosomatic index (HI), peritoneal fat index (PFI), and survival (S) were determined for juveniles. Regardless of the feeding hours, no significant differences were found in the GR and SGR values between juveniles fed 3 times a day and those fed 5 times a day. FCR was significantly higher and FER significantly lower in treatments with juveniles fed only once a day compared with the rest of the treatments. No significant differences were found in CV, HI, and S between treatments. PFI was significantly different only between juveniles fed once and 5 times a day. Considering the results obtained in this study, we suggest feeding C. viridis juveniles 3 times a day at 6-h intervals between doses. 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引用次数: 2

摘要

西班牙人Robalo Blanco del Pacifico,“Centropomus viridis”因其高经济价值和国内市场需求而被认为是墨西哥极具种植潜力的物种。养殖鱼类的生长在很大程度上取决于食物系统,其中包括频率、速度、时间和进食节奏。本研究旨在确定培养中绿色冠状病毒幼崽的喂养频率和适当的喂养时间,以优化生长和存活。0.36±0.01 g的青少年被用来评估每天1至5次任意喂养频率,间隔3至24小时,持续6周。测定了幼崽的增重(PG)、生长率(TC)、特定生长率(TEC)、食物转化率(TCA)、食物效率率(TEA)、变异系数(CV)、肝体指数(IH)、腹膜脂肪指数L(PGI)和存活率。无论喂食时间如何,每天喂食3次的青少年的TC和TEC与每天喂食5次的青少年的结果没有显著差异。与其他治疗方法相比,每天喂养一次的未成年人的TCA显著高于其他治疗方法,TEA显著低于其他治疗方法。治疗组之间的CV、IH和S没有显著差异。PGI在每天喂养1至5次的青少年中仅存在显著差异。根据这项研究的结果,建议绿僵菌的幼崽每天喂食3次,每次喂食间隔6小时。这些结果将有助于该物种培养生物技术的发展。英国太平洋白鼻鲷“Centropomus viridis”因其高经济价值和国内市场的总体需求而被认为是墨西哥具有高农业潜力的物种。养殖鱼类的生长在很大程度上取决于饮食制度,其中包括喂养频率、速度、时间和周期。本研究的目的是确定农场C.青年病毒的喂养频率和适当的喂养时间,以优化生长和存活。体重为0.36±0.01克的青少年被用来评估每天3至24小时间隔6周的1至5次随意喂食频率。测定了未成年人的增重(GW)、生长率(GR)、比生长率(SGR)、食物转化率(FCR)、饲料效率率(FER)、变异系数(CV)、肝体指数(HI)、腹腔脂肪指数(PFI)和存活率。无论喂食时间如何,每天喂食3次的青少年和每天喂食5次的青少年之间的GR和SGR值没有显著差异。与其他治疗方法相比,每天只喂养一次的青少年的FCR显著升高,FER显著降低。治疗之间的CV、HI和S没有显著差异。PFI仅在每天喂食一次至五次的青少年之间存在显著差异。考虑到这项研究的结果,我们建议在剂量之间的6小时间隔内每天喂养C.幼鸟3次。这些结果将有助于开发种植这种物种的生物技术。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Effects of frequency and feeding time on growth, food utilization, somatic indexes and survival of juvenile white snook Centropomus viridis
espanolEl robalo blanco del pacifico, "Centropomus viridis", se considera como una especie con alto potencial para su cultivo en Mexico por su alto valor economico y gran demanda en el mercado nacional. El crecimiento de los peces en cultivo depende, en gran medida, del regimen alimenticio, el cual incluye, frecuencia, tasa, tiempo y ritmo de alimentacion. El presente trabajo tuvo como objetivo determinar la frecuencia y la hora apropiada de alimentacion de juveniles de C. viridis en cultivo para optimizar el crecimiento y la supervivencia. Se utilizaron juveniles de 0.36 ± 0.01 g para evaluar de 1 a 5 frecuencias de alimentacion ad libitum por dia, con intervalos de 3 a 24 h, durante 6 semanas. Se determino el peso ganado (PG), la tasa de crecimiento (TC), la tasa especifica de crecimiento (TEC), la tasa de conversion alimenticia (TCA), la tasa de eficiencia alimenticia (TEA), el coeficiente de variacion (CV), el indice hepatosomatico (IH), el indice de grasa peritonea l (IGP) y la supervivencia (S) de los juveniles. La TC y la TEC de los juveniles alimentados 3 veces al dia, independientemente de las horas de alimentacion, no presentaron diferencias significativas con respecto a los resultados obtenidos para los juveniles alimentados 5 veces al dia. La TCA fue significativamente mayor y la TEA significativamente menor en los tratamientos con juveniles alimentados una sola vez al dia en comparacion con el resto de los tratamientos. No se encontraron diferencias significativas en CV, IH y S entre los tratamientos. El IGP solo presento diferencias significativas entre los juveniles alimentados 1 y 5 veces al dia. Con base en los resultados obtenidos en el presente estudio, se sugiere que los juveniles de C. viridis se alimenten 3 veces al dia, con un intervalo de 6 h entre cada toma. Estos resultados ayudaran en el desarrollo de la biotecnologia de cultivo de esta especie. EnglishThe Pacific white snook, "Centropomus viridis", is considered a species with high farming potential in Mexico due to its high economic value and overall demand in the national market. Growth in farmed fish is largely determined by the dietary regimen, which includes feeding frequency, rate, time, and cycle. The aim of the present study was to determine the feeding frequency and appropriate feeding time for farmed C. viridis juveniles in order to optimize growth and survival. Juveniles weighing 0.36 ± 0.01 g were used to evaluate 1 and up to 5 ad-libitum feeding frequencies per day, with 3 to 24-h intervals, for 6 weeks. Gained weight (GW), growth rate (GR), specific growth rate (SGR), food conversion ratio (FCR), feeding efficiency rate (FER), coefficient of variation (CV), hepatosomatic index (HI), peritoneal fat index (PFI), and survival (S) were determined for juveniles. Regardless of the feeding hours, no significant differences were found in the GR and SGR values between juveniles fed 3 times a day and those fed 5 times a day. FCR was significantly higher and FER significantly lower in treatments with juveniles fed only once a day compared with the rest of the treatments. No significant differences were found in CV, HI, and S between treatments. PFI was significantly different only between juveniles fed once and 5 times a day. Considering the results obtained in this study, we suggest feeding C. viridis juveniles 3 times a day at 6-h intervals between doses. These results will contribute to the development of biotechnology for farming this species.
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来源期刊
Ciencias Marinas
Ciencias Marinas 生物-海洋与淡水生物学
CiteScore
1.10
自引率
0.00%
发文量
9
审稿时长
>12 weeks
期刊介绍: A bilingual open-access publication, Ciencias Marinas (CM) is an international peer-reviewed journal that contains original research findings in all areas of marine science. It is published quarterly by the Autonomous University of Baja California, Mexico, and all its contents are publicly available on our journal website. Though a limited number of copies are still printed, the journal is mainly distributed in its electronic format. CM was conceived in 1973 as part of an academic project aimed to entice local researchers to publicly disclose their findings by adopting the culture of peer-review publishing. This academic project evolved into an international journal after accepting papers from researchers in the United States and, eventually, other parts of the world. Because of the diversity in authorship, CM issues were initially published in either Spanish or English, and occasionally in both languages. It was not until 1984 when CM included both language versions of all its contents, and it then became the fully bilingual journal it still is today. At CM we believe our inclusive format allows us not only to address a wider range of submissions from international authors but also to make published findings available to a wider international audience. So whether you are looking for information on the redfish in Icelandic waters or the physical and biological properties of the Gulf of California, feel free to peruse CM contents. You may find them to provide source material for your research.
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