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Growth performance of five different strains of Nile tilapia (Oreochromis niloticus) introduced to Tanzania reared in fresh and brackish waters

Moses, Mbiru and Chauka, Leonard J. and De Koning, Dirk-Jan and Palaiokostas, Christos and Mtolera, Matern S. P. (2021). Growth performance of five different strains of Nile tilapia (Oreochromis niloticus) introduced to Tanzania reared in fresh and brackish waters. Scientific Reports. 11 , 11147
[Research article]

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Abstract

Five introduced strains of Nile tilapia (Oreochromis niloticus) were tested for growth performance both in fresh- and brackish-water (2 salinity units) environments for 56 days. The BIG NIN, GIFT, Chitralada, "Ruvu Farm" and Silver YY strains with initial mean average weight (+/- standard error) of 96.4 +/- 6.90 g, 104.1 +/- 7.19 g, 137.2 +/- 7.21 g, 53.2 +/- 6.98 g and 95.3 +/- 7.11 g, respectively were used. Individuals were tagged and pooled in hapas (12 mx8.5 mx2 m each), aligned into different ponds (20 mx20 m each). Stocking density of 5 fish/m(2) and 350 g/kg crude protein diet were used. Overall, the average weight gain for GIFT strain was 7.5%, 32%, 45% and 86.5% higher than BIG NIN, Chitralada, "Ruvu Farm" and Silver YY strains, respectively, across both environments. All strains performed significantly better (p<0.05) when reared in brackish-water than their respective counterparts in freshwater, except for the BIG NIN strain. The morphometric correlations for all strains in both environments ranged from moderate (0.50) to strong positive (0.92). The GIFT strain demonstrated superior growth and genotype by environment interaction was weak and not important to be prioritized in breeding programs.

Authors/Creators:Moses, Mbiru and Chauka, Leonard J. and De Koning, Dirk-Jan and Palaiokostas, Christos and Mtolera, Matern S. P.
Title:Growth performance of five different strains of Nile tilapia (Oreochromis niloticus) introduced to Tanzania reared in fresh and brackish waters
Series Name/Journal:Scientific Reports
Year of publishing :2021
Volume:11
Article number:11147
Number of Pages:12
Publisher:NATURE RESEARCH
ISSN:2045-2322
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Fish and Aquacultural Science
URN:NBN:urn:nbn:se:slu:epsilon-p-112712
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-112712
Additional ID:
Type of IDID
DOI10.1038/s41598-021-90505-y
Web of Science (WoS)000658390000008
ID Code:24832
Faculty:VH - Faculty of Veterinary Medicine and Animal Science
Department:(VH) > Dept. of Animal Breeding and Genetics
Deposited By: SLUpub Connector
Deposited On:09 Jul 2021 13:25
Metadata Last Modified:09 Jul 2021 13:31

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