Influence of feeding frequency on growth, feed intake and proximate composition of juvenile red seabream Pagrus major
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Title
- Influence of feeding frequency on growth, feed intake and proximate composition of juvenile red seabream Pagrus major
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Author(s)
- 오승용; 박진우
- KIOST Author(s)
- Oh, Sung Yong(오승용)
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Alternative Author(s)
- 오승용; 박진우
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Publication Year
- 2018-05-10
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Abstract
- A 10-week feeding trial was conducted to investigate the influences of feeding frequency on growth, feed intake and proximate composition of juvenile red seabream Pagrus major. A total 240 juveniles (initial mean body weight 22.7 ± 0.8 g) were randomly distributed to twelve 75-L tanks with density of 20 fish per tank. Fish were hand-fed to apparent satiation using a commercial diet (42.5% protein) at one of four different feeding frequencies (one to four meals a day) with triplicates. At the end of feeding trial, weight gain, specific growth rate, and feeding rate in fish fed three and four meals a day were significantly (P < 0.05) higher than those of fish one or two meals a day. The feed efficiency was not significantly (P > 0.05) affected by the feeding frequency. The inter-individual size variation in body weight significantly (P < 0.05) decreased with the increase of feeding frequency. The highest feed intake of fish occurred at the first meal (08:30) of each treatment. As feeding frequency increased, crude lipid content also increased, but crude ash content decreased (P < 0.05). Our results suggest that optimum feeding frequency for improving growth rate of juvenile red seabream weighing from 20 to 80 g is three meals a day under our specific experimental conditions.were randomly distributed to twelve 75-L tanks with density of 20 fish per tank. Fish were hand-fed to apparent satiation using a commercial diet (42.5% protein) at one of four different feeding frequencies (one to four meals a day) with triplicates. At the end of feeding trial, weight gain, specific growth rate, and feeding rate in fish fed three and four meals a day were significantly (P < 0.05) higher than those of fish one or two meals a day. The feed efficiency was not significantly (P > 0.05) affected by the feeding frequency. The inter-individual size variation in body weight significantly (P < 0.05) decreased with the increase of feeding frequency. The highest feed intake of fish occurred at the first meal (08:30) of each treatment. As feeding frequency increased, crude lipid content also increased, but crude ash content decreased (P < 0.05). Our results suggest that optimum feeding frequency for improving growth rate of juvenile red seabream weighing from 20 to 80 g is three meals a day under our specific experimental conditions.
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URI
- https://sciwatch.kiost.ac.kr/handle/2020.kiost/23382
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Bibliographic Citation
- 2018년도 한국수산과학회 춘계학술대회, pp.270, 2018
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Publisher
- 한국수산과학회
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Type
- Conference
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Language
- English
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