Nghiên cứu thu hoạch và sử dụng SCD (Single cell detritus) từ rong câu (Gracilaria tenuistipitata) làm thức ăn cho động vật ăn lọc

Thảo, Ngô Thị Thu; Huy, Nguyễn Huỳnh Anh

doi:10.22144/ctu.jvn.2017.026

CTU Journal

2017

DOI: 10.22144/ctu.jvn.2017.026

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Nghiên cứu thu hoạch và sử dụng SCD (Single cell detritus) từ rong câu (Gracilaria tenuistipitata) làm thức ăn cho động vật ăn lọc

Ngô Thị Thu Thảo¹,

Nguyễn Huỳnh Anh Huy²

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Cited by 3 publications

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Evaluating the effects of single cell detritus from red seaweed (Gracillaria tenuistipitata) and gutweed (Enteromorpha sp.) on growth of Artemia franciscana

Thảo¹

2019

CTU Journal

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The ability to produce single cell detritus (SCD) from different seaweed species, red seaweed, Gracillaria tenuistipitata and green seaweed, Enteromorpha sp. was determined, and the effects of selected SCD diet on survival rate, growth performance and reproductive characteristics of Artemia franciscana were assessed under laboratory conditions. Experiment 1 included 8 treatments with red and green seaweeds, combined with yeast fermentation at different densities (0, 10 4 , 10 5 , 10 6 cells/mL). The results showed that the density of SCD reached highest at day 7 in the treatments added 10 6 yeast cells/mL (88.480±2.769×10 6 and 100.752±2.687×10 6 cells/mL of red and green seaweeds, respectively). Although the density of SCD was highest at 10 6 yeast cells/mL, the yeast density and NH 4 + concentration in green seaweed fermentation were high (5-10 mg/L). Thus, the treatment of red seaweed and 10 5 yeast cells/mL obtained the suitable ability to harvest at day 7 and preserve SCD for feeding Artemia. In experiment 2, Artemia were fed with 5 different diets, and each diet has three replications. Commercial feed No. 0 (for shrimp postlarvae) was the control, and 4 diets in which the shrimp feed was replaced by SCD with proportion of 100, 75, 50 and 25%. Results showed that diet with 50% shrimp feed and 50% SCD showed the high survival rate and good growth performance, as well as positive effects on the reproductive characteristics of Artemia franciscana.

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Evaluating the effects of single cell detritus from red seaweed (Gracillaria tenuistipitata) and gutweed (Enteromorpha sp.) on growth of Artemia franciscana

Thảo¹

2019

CTU Journal

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Đánh giá phương pháp bảo quản và chất lượng SCD (dạng tế bào đơn) thu hoạch từ rong bún (Enteromorpha intestinalis)

Thảo¹,

Hòa²,

Huy³

et al. 2018

CTU Journal

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Sử dụng thuật toán Entropy chéo và chọn mẫu Gibbs để ước lượng xác suất sự kiện hiếm

Lý¹,

Thịnh²,

Phú³

et al. 2020

CTU Journal

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In this study, Monte-Carlo simulation samples are generated by the periodic Gibbs sampling algorithm. The probability of a rare event will be estimated from these simulated samples. By using the Naïve Monte Carlo method to estimate the very small probability of rare events, it is necessary to create very large simulation samples that take a long time to initialize. This limitation was significantly improved by combining the cross-entropy method with the Gibbs sampling algorithm to create Monte-Carlo simulation samples. Using the technique of probability measure change in the cross-entropy method, rare events will occur in the simulation sample at a higher frequency according to the new probability measure. The probability of these rare events can be well estimated by returning the results for the initial probability measure.

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Nghiên cứu thu hoạch và sử dụng SCD (Single cell detritus) từ rong câu (Gracilaria tenuistipitata) làm thức ăn cho động vật ăn lọc

Cited by 3 publications

References 0 publications

Evaluating the effects of single cell detritus from red seaweed (Gracillaria tenuistipitata) and gutweed (Enteromorpha sp.) on growth of Artemia franciscana

Evaluating the effects of single cell detritus from red seaweed (Gracillaria tenuistipitata) and gutweed (Enteromorpha sp.) on growth of Artemia franciscana

Đánh giá phương pháp bảo quản và chất lượng SCD (dạng tế bào đơn) thu hoạch từ rong bún (Enteromorpha intestinalis)

Sử dụng thuật toán Entropy chéo và chọn mẫu Gibbs để ước lượng xác suất sự kiện hiếm

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