Effects of stocking density on growth and skin color of juvenile darkbarbel catfish Pelteobagrus vachelli (Richardson)
文献类型：期刊论文
| 作者 | Zeng, W.1,2; Li, Z.1; Ye, S.1; Xie, S.1; Liu, J.1; Zhang, T.1; Duan, M.1 |
| 刊名 | JOURNAL OF APPLIED ICHTHYOLOGY
 |
| 出版日期 | 2010-12-01 |
| 卷号 | 26期号:6页码:925-929 |
| ISSN号 | 0175-8659 |
| 通讯作者 | Li, Z, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Hubei, Peoples R China ; zhongjie@ihb.ac.cn |
| 中文摘要 | A 3-month experiment was conducted to investigate the effects of stocking density on growth performance and skin color of juvenile darkbarbel catfish. Experimental fish (5.0 +/- 0.6 g; n = 160) were stocked in triplicate in 2 m(2) concrete tanks in a greenhouse at the initial density of 50, 150, 400 and 650 fish m(-2), respectively (0.42, 1.25, 3.33 and 5.42 kg m(-3)). At the end of the experiment, 60 fish from each tank were sampled to record body weight and total length, and six fish from each tank were sampled to measure skin color by instrumental color analysis. Results showed that stocking density affected growth performance significantly (P < 0.05). Final mean weight (W), final mean total length (L) and specific growth rate (SGR) were significantly higher at 150 fish m(-2) treatment and lower in both the highest and lowest (650 and 50 fish m(-2)) density treatments (P < 0.05). The condition factor (CF) was higher in 150 and 50 fish m(-2) and lowest at 650 fish m(-2) treatment; the coefficient of variation of weight (CV) tended to increase with the increase in stocking density, which was lowest in 50 fish m(-2) and highest in 650 fish m(-2). Stocking density also affected the skin color parameters, L* (lightness), a* (redness), b* (yellowness) and h* (hue), significantly (P < 0.05). The values of these parameters tended to decline with the increase in stocking density. Results of the present study suggest that growth performance and skin color responses to stock density exhibit different patterns for darkbarbel catfish juveniles: highest and lowest densities impaired growth rate, and higher density had a darkening effect on skin color. |
| 英文摘要 | A 3-month experiment was conducted to investigate the effects of stocking density on growth performance and skin color of juvenile darkbarbel catfish. Experimental fish (5.0 +/- 0.6 g; n = 160) were stocked in triplicate in 2 m(2) concrete tanks in a greenhouse at the initial density of 50, 150, 400 and 650 fish m(-2), respectively (0.42, 1.25, 3.33 and 5.42 kg m(-3)). At the end of the experiment, 60 fish from each tank were sampled to record body weight and total length, and six fish from each tank were sampled to measure skin color by instrumental color analysis. Results showed that stocking density affected growth performance significantly (P < 0.05). Final mean weight (W), final mean total length (L) and specific growth rate (SGR) were significantly higher at 150 fish m(-2) treatment and lower in both the highest and lowest (650 and 50 fish m(-2)) density treatments (P < 0.05). The condition factor (CF) was higher in 150 and 50 fish m(-2) and lowest at 650 fish m(-2) treatment; the coefficient of variation of weight (CV) tended to increase with the increase in stocking density, which was lowest in 50 fish m(-2) and highest in 650 fish m(-2). Stocking density also affected the skin color parameters, L* (lightness), a* (redness), b* (yellowness) and h* (hue), significantly (P < 0.05). The values of these parameters tended to decline with the increase in stocking density. Results of the present study suggest that growth performance and skin color responses to stock density exhibit different patterns for darkbarbel catfish juveniles: highest and lowest densities impaired growth rate, and higher density had a darkening effect on skin color. |
| 学科主题 | Fisheries; Marine & Freshwater Biology |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 类目[WOS] | Fisheries ; Marine & Freshwater Biology |
| 研究领域[WOS] | Fisheries ; Marine & Freshwater Biology |
| 关键词[WOS] | CLARIAS-GARIEPINUS BURCHELL ; COD GADUS-MORHUA ; RAINBOW-TROUT ; AFRICAN CATFISH ; STRESS-RESPONSE ; FOOD-INTAKE ; ONCORHYNCHUS-MYKISS ; OXYGEN-CONSUMPTION ; DEPENDENT GROWTH ; LIGHT-INTENSITY |
| 资助信息 | Chinese Academy of Sciences [KSCX2-YW-N-47-06]; Hubei Provincial Science and Technology Department [2006AA203A03] |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000284171500015 |
| 公开日期 | 2011-04-14 |
| 源URL | [http://ir.ihb.ac.cn/handle/342005/15502]  |
| 专题 | 水生生物研究所_鱼类生物学及渔业生物技术研究中心_期刊论文 |
| 作者单位 | 1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Hubei, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zeng, W.,Li, Z.,Ye, S.,et al. Effects of stocking density on growth and skin color of juvenile darkbarbel catfish Pelteobagrus vachelli (Richardson)[J]. JOURNAL OF APPLIED ICHTHYOLOGY,2010,26(6):925-929. |
| APA | Zeng, W..,Li, Z..,Ye, S..,Xie, S..,Liu, J..,...&Duan, M..(2010).Effects of stocking density on growth and skin color of juvenile darkbarbel catfish Pelteobagrus vachelli (Richardson).JOURNAL OF APPLIED ICHTHYOLOGY,26(6),925-929. |
| MLA | Zeng, W.,et al."Effects of stocking density on growth and skin color of juvenile darkbarbel catfish Pelteobagrus vachelli (Richardson)".JOURNAL OF APPLIED ICHTHYOLOGY 26.6(2010):925-929. |
入库方式： OAI收割
来源：水生生物研究所
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