Dietary protein requirement of juvenile spotted knifejaw Oplegnathus punctatus

Wang, Jiteng; Rongxing, Huang; Han, Tao; Zheng, Puqiang; Xu, Hanying; Su, Huan; Wang, Yuebin

doi:10.1016/j.aqrep.2021.100874

Cited by 8 publications

(5 citation statements)

References 33 publications

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“…Berdasarkan Ji et al, (2019), triptofan dapat membantu meningkatkan sintesis protein dalam tubuh sehingga ikan dapat memanfaatkan pakan dengan baik untuk pertumbuhan. Menurut Wang et al, (2021) rasio efisiensi protein menjadi indikator yang mampu menunjukkan tingkat pemanfaatan protein dalam pakan. Semakin tinggi nilai rasio efisiensi protein berarti ikan dapat memanfaatkan protein yang terkandung dalam pakan dengan baik.…”

Section: Rasio Efisiensi Proteinunclassified

Pengaruh triptofan dalam pakan buatan terhadap efisiensi pemanfaatan pakan dan performa pertumbuhan benih lele sangkuriang (Clarias gariepinus)

Agustiana

Rachmawati

Herawati

2022

SAT

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Lele sangkuriang (Clarias gariepinus) merupakan salah satu komoditas ikan air tawar yang banyak dibudidayakan karena memiliki nilai ekonomis tinggi. Permasalahan pada budidaya lele sangkuriang salah satunya adalah efisiensi pemanfaatan pakan yang belum maksimal. Triptofan merupakan asam amino esensial yang berfungsi sebagai precursor serotonin yang dapat mengatur asupan pakan, adanya serotonin dalam otak akan menimbukan perasaan tenang dan senang sehingga napsu makan meningkat, selain itu triptofan juga membantu meningkatkan aktivitas enzim pencernaan ikan. Penelitian ini bertujuan untuk mengetahui pengaruh triptofan dalam pakan buatan terhadap efisiensi pemanfaatan pakan dan pertumbuhan lele sangkuriang dan dosis optimum triptofan. Penelitian ini dilaksanakan selama 42 hari yaitu pada bulan Juni 2021 - Agustus 2021 bertempat di Loka Perbenihan dan Budidaya Ikan Air Tawar Ngrajek, Magelang. Ikan uji yang digunakan adalah benih lele sangkuriang dengan bobot rata-rata 1,95±0,08 g/ekor. Pakan uji yang digunakan berupa pakan komersil dengan kandungan protein 31%. Parameter yang diukur dalam penelitian ini adalah Tingkat Konsumsi Pakan (TKP), Efisiensi Pemanfaatan Pakan (EPP), Rasio Efisiensi Protein (PER), Laju Pertumbuhan Relatif (RGR), Rasio Konversi Pakan (FCR), Kelulushidupan (SR), dan kualitas air. Metode yang digunakan adalah eksperimental menggunakan Rancangan Acak Lengkap (RAL) yang terdiri atas 6 perlakuan dan 3 ulangan. Perlakuan A, B, C, D, E, dan F masing-masing adalah (0; 0,85; 1,7; 2,55; 3,4; dan 4,25) g/kg pakan. Hasil penelitian menunjukkan bahwa penambahan triptofan berpengaruh nyata (P<0,05) terhadap TKP, EPP, PER, RGR, dan FCR tetapi tidak berpengaruh nyata terhadap SR. Dosis optimum penambahan triptofan pada pakan buatan untuk lele sangkuriang adalah 3,6; 3,03; 2,94; 2,98; dan 3,05 g/kg pakan yang menghasilkan TKP, EPP, PER, RGR, dan FCR maksimal sebesar 136,29g; 67,55%; 1,92%; 5,13%/ hari; dan 1,48.

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Section: Rasio Efisiensi Proteinunclassified

Pengaruh triptofan dalam pakan buatan terhadap efisiensi pemanfaatan pakan dan performa pertumbuhan benih lele sangkuriang (Clarias gariepinus)

Agustiana

Rachmawati

Herawati

2022

SAT

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“…The optimal feeding of marine organisms in aquacultures plays a significant role in nutritional management and the growth rate [ 3 ]. The challenge of optimally feeding aquatic organisms arises from their varied metabolic demands and the difficulties in feeding various species a sufficient amount of feed to avoid underfeeding or overfeeding [ 4 ]. Underfeeding leads to slow growth and weakens their immunity against diseases, leading to poor health and a reduced growth rate [ 5 ].…”

Section: Introductionmentioning

confidence: 99%

Augmenting Aquaculture Efficiency through Involutional Neural Networks and Self-Attention for Oplegnathus Punctatus Feeding Intensity Classification from Log Mel Spectrograms

Iqbal,

Li,

et al. 2024

Animals

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Understanding the feeding dynamics of aquatic animals is crucial for aquaculture optimization and ecosystem management. This paper proposes a novel framework for analyzing fish feeding behavior based on a fusion of spectrogram-extracted features and deep learning architecture. Raw audio waveforms are first transformed into Log Mel Spectrograms, and a fusion of features such as the Discrete Wavelet Transform, the Gabor filter, the Local Binary Pattern, and the Laplacian High Pass Filter, followed by a well-adapted deep model, is proposed to capture crucial spectral and spectral information that can help distinguish between the various forms of fish feeding behavior. The Involutional Neural Network (INN)-based deep learning model is used for classification, achieving an accuracy of up to 97% across various temporal segments. The proposed methodology is shown to be effective in accurately classifying the feeding intensities of Oplegnathus punctatus, enabling insights pertinent to aquaculture enhancement and ecosystem management. Future work may include additional feature extraction modalities and multi-modal data integration to further our understanding and contribute towards the sustainable management of marine resources.

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“…With the development of artificial breeding and larval culture, the aquaculture industry of spotted knifejaw has developed rapidly in the coastal areas of China, especially in Shandong and Guangdong provinces. Spotted knifejaw has the characteristics of fast growth, low cannibalism rate and high density of resistance, so it is considered a candidate species with high farming potential in industrial recirculation aquaculture system, and it will become one of the most popular marine fish species in aquaculture (Wang et al, 2021). However, various infectious diseases have begun spreading widely owing to increasing environmental pollution and the over‐expansion of aquaculture.…”

Section: Introductionmentioning

confidence: 99%

Establishment and characterization of a brain tissue cell line from spotted knifejaw (Oplegnathus punctatus) and its susceptibility to several fish viruses

Liao

Zhang

Kang

et al. 2023

Journal of Fish Diseases

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Cells are important in the study of virus isolation and identification, viral pathogenic mechanisms and antiviral immunity. The spotted knifejaw (Oplegnathus punctatus) is a significant farmed fish in China that has been greatly affected by diseases in recent years. In this study, a new cell line derived from the spotted knifejaw brain (SKB) was established and characterized. SKB cells multiplied well in Leibovitz's L‐15 medium supplemented with 10% fetal bovine serum at 28°C. Chromosome analysis revealed that modal chromosome number was 48 for SKB. SKB cells exhibit susceptibility to several fish viruses, such as a largemouth bass virus, red grouper nervous necrosis virus (RGNNV), infectious spleen and kidney necrosis virus (ISKNV), Singapore grouper iridovirus (SGIV) and spotted knifejaw iridovirus isolate (SKIV‐TJ), as shown by cytopathic effect and increased viral titers. Electron microscopy results showed that the cytoplasm contained a large number of vacuoles, and many virus particles existed at the edge of the vacuoles in RGNNV‐infected cells and numerous viral particles were scattered throughout the cytoplasm in both ISKNV‐ and SKIV‐TJ‐infected cells. These results suggest that SKB is an ideal tool for studying host–virus interactions and potential vaccine development.

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Dietary protein requirement of juvenile spotted knifejaw Oplegnathus punctatus

Cited by 8 publications

References 33 publications

Pengaruh triptofan dalam pakan buatan terhadap efisiensi pemanfaatan pakan dan performa pertumbuhan benih lele sangkuriang (Clarias gariepinus)

Pengaruh triptofan dalam pakan buatan terhadap efisiensi pemanfaatan pakan dan performa pertumbuhan benih lele sangkuriang (Clarias gariepinus)

Augmenting Aquaculture Efficiency through Involutional Neural Networks and Self-Attention for Oplegnathus Punctatus Feeding Intensity Classification from Log Mel Spectrograms

Establishment and characterization of a brain tissue cell line from spotted knifejaw (Oplegnathus punctatus) and its susceptibility to several fish viruses

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