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Partial compensatory growth in hybrid tilapia Oreochromis mossambicus x O-niloticus following food deprivation
Wang, Y; Cui, Y; Yang, Y; Cai, F; Wang, Y, Shanghai Fisheries Univ, Lab Aquat Ecol & Fish Nutr, Shanghai 200090, Peoples R China
2005-10-01
Source PublicationJOURNAL OF APPLIED ICHTHYOLOGY
ISSN0175-8659
Volume21Issue:5Pages:389-393
AbstractThe capacity of hybrid tilapia Oreochromis mossambicus x O. niloticus [23.2 +/- 0.2 g (mean +/- SE)] to show compensatory growth was assessed in an 8-week experiment. Fish were deprived of feed for 1, 2 and 4 weeks, and then fed to satiation for 4 weeks; fish fed to satiation during the experiment served as control. Water temperature gradually declined from 28.1 to 25.5 degrees C throughout the experiment. Specific growth rate (SGR) decreased with progressive food deprivation. At the end of deprivation, body weight was lower in the deprived fish than in the control. Fish deprived for 4 weeks exhibited lower contents of lipids and energy in whole body, and higher moisture content and ratio of protein to energy (P/E) than those of the control; they also consumed feed faster than the control when normal feeding was resumed. All deprived fish showed higher food intake (FI) than that of the control during re-alimentation; however, enhanced SGR was only observed in the fish deprived for 4 weeks. There were no significant differences in digestibility of protein and energy, food efficiency (FE) or energy retention efficiency between the control and deprived fish. At the end of re-alimentation, deprived fish failed to catch up in body weight with the control, while content of moisture, lipids and energy, and P/E in whole body of the deprived fish did not significantly differ from that of the control. The results of the experiment revealed that the hybrid tilapia reared in freshwater showed partial capacity for compensatory growth following food deprivation of 4 weeks, and that growth compensation was due mainly to increased FI, rather than to improved FE.; The capacity of hybrid tilapia Oreochromis mossambicus x O. niloticus [23.2 +/- 0.2 g (mean +/- SE)] to show compensatory growth was assessed in an 8-week experiment. Fish were deprived of feed for 1, 2 and 4 weeks, and then fed to satiation for 4 weeks; fish fed to satiation during the experiment served as control. Water temperature gradually declined from 28.1 to 25.5 degrees C throughout the experiment. Specific growth rate (SGR) decreased with progressive food deprivation. At the end of deprivation, body weight was lower in the deprived fish than in the control. Fish deprived for 4 weeks exhibited lower contents of lipids and energy in whole body, and higher moisture content and ratio of protein to energy (P/E) than those of the control; they also consumed feed faster than the control when normal feeding was resumed. All deprived fish showed higher food intake (FI) than that of the control during re-alimentation; however, enhanced SGR was only observed in the fish deprived for 4 weeks. There were no significant differences in digestibility of protein and energy, food efficiency (FE) or energy retention efficiency between the control and deprived fish. At the end of re-alimentation, deprived fish failed to catch up in body weight with the control, while content of moisture, lipids and energy, and P/E in whole body of the deprived fish did not significantly differ from that of the control. The results of the experiment revealed that the hybrid tilapia reared in freshwater showed partial capacity for compensatory growth following food deprivation of 4 weeks, and that growth compensation was due mainly to increased FI, rather than to improved FE.
SubtypeArticle
KeywordCatfish Ictalurus-punctatus Salmo-gairdneri Richardson Rainbow-trout Feed Deprivation Gibel Carp Starvation Recovery Appetite Sunfish Periods
DepartmentShanghai Fisheries Univ, Lab Aquat Ecol & Fish Nutr, Shanghai 200090, Peoples R China; Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan, Peoples R China; Univ Shantou, Marine Biol Lab, Shantou, Peoples R China
Subject AreaFisheries ; Marine & Freshwater Biology
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Indexed BySCI
Language英语
WOS Research AreaFisheries ; Marine & Freshwater Biology
WOS SubjectFisheries ; Marine & Freshwater Biology
WOS IDWOS:000232493400003
WOS KeywordCATFISH ICTALURUS-PUNCTATUS ; SALMO-GAIRDNERI RICHARDSON ; RAINBOW-TROUT ; FEED DEPRIVATION ; GIBEL CARP ; STARVATION ; RECOVERY ; APPETITE ; SUNFISH ; PERIODS
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Cited Times:21[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/9132
Collection期刊论文
Corresponding AuthorWang, Y, Shanghai Fisheries Univ, Lab Aquat Ecol & Fish Nutr, Shanghai 200090, Peoples R China
Affiliation1.Shanghai Fisheries Univ, Lab Aquat Ecol & Fish Nutr, Shanghai 200090, Peoples R China
2.Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan, Peoples R China
3.Univ Shantou, Marine Biol Lab, Shantou, Peoples R China
Recommended Citation
GB/T 7714
Wang, Y,Cui, Y,Yang, Y,et al. Partial compensatory growth in hybrid tilapia Oreochromis mossambicus x O-niloticus following food deprivation[J]. JOURNAL OF APPLIED ICHTHYOLOGY,2005,21(5):389-393.
APA Wang, Y,Cui, Y,Yang, Y,Cai, F,&Wang, Y, Shanghai Fisheries Univ, Lab Aquat Ecol & Fish Nutr, Shanghai 200090, Peoples R China.(2005).Partial compensatory growth in hybrid tilapia Oreochromis mossambicus x O-niloticus following food deprivation.JOURNAL OF APPLIED ICHTHYOLOGY,21(5),389-393.
MLA Wang, Y,et al."Partial compensatory growth in hybrid tilapia Oreochromis mossambicus x O-niloticus following food deprivation".JOURNAL OF APPLIED ICHTHYOLOGY 21.5(2005):389-393.
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