María Isabel Abdo-de la Parra, L. E. Rodríguez-Ibarra, L. Ibarra-Castro, J. M. Martínez-Brown, G. Velasco-Blanco
{"title":"Effects of frequency and feeding time on growth, food utilization, somatic indexes and survival of juvenile white snook Centropomus viridis","authors":"María Isabel Abdo-de la Parra, L. E. Rodríguez-Ibarra, L. Ibarra-Castro, J. M. Martínez-Brown, G. Velasco-Blanco","doi":"10.7773/CM.V46I3.3089","DOIUrl":null,"url":null,"abstract":"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.","PeriodicalId":50702,"journal":{"name":"Ciencias Marinas","volume":"46 1","pages":"155-163"},"PeriodicalIF":0.5000,"publicationDate":"2020-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Ciencias Marinas","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.7773/CM.V46I3.3089","RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MARINE & FRESHWATER BIOLOGY","Score":null,"Total":0}
引用次数: 2
Abstract
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.
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.