Behavioral responses of nile tilapia (oreochromis niloticus) to feed restriction regime
Joint Authors
Hilal, Muhammad A. Y.
Ramadan, Samih A. G.
Mahbub, Hamadah D. H.
Ahmad, Walaa S. H.
Source
Alexandria Journal of Veterinary Sciences
Issue
Vol. 59, Issue 2 (31 Oct. 2018), pp.1-10, 10 p.
Publisher
Alexandria University Faculty of Veterinary Medicine
Publication Date
2018-10-31
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
Feed restriction and re-feeding regime can be used as a management tool to reduce feeding cost.
The present study was carried out to investigate behavioral adaptation of Nile tilapia to feed restriction regime.
Forty Nile tilapia fish species were classified into two groups (n=10/group, 2 replicates per group).
This study was completed in 11 weeks period and divided into two stages, the first stage (feed restriction) which was for first 8 weeks followed by the second stage (re-feeding) for remaining 3 weeks.
The first group was the control which fed daily throughout the study period, the second was the restricted group which had their feed restricted for two days per week for 8 weeks and then refeed for 3 weeks.
Behavior of fish, body weight, body dimensions and water quality were recorded.
Weight gain, relative growth rate and feed conversion ratio were calculated.
The results demonstrated that food restriction significantly increased resting, schooling and chafing behaviors, but decreased eliminative, chasing and mouth pushing behaviors.
Feed restriction significantly reduced body weight.
However, the relative growth rate and feed conversion ratio were improved.
Water quality parameters were improved with increased dissolved oxygen and maintenance pH in restricted group.
It was concluded that Nile tilapia were adapted behaviorally to feed restriction regime by increasing comfort behavior and reducing aggressive behavior that indicate adjustment capability of Nile tilapia to feed deprivation.
American Psychological Association (APA)
Ramadan, Samih A. G.& Mahbub, Hamadah D. H.& Hilal, Muhammad A. Y.& Ahmad, Walaa S. H.. 2018. Behavioral responses of nile tilapia (oreochromis niloticus) to feed restriction regime. Alexandria Journal of Veterinary Sciences،Vol. 59, no. 2, pp.1-10.
https://search.emarefa.net/detail/BIM-1341120
Modern Language Association (MLA)
Mahbub, Hamadah D. H.…[et al.]. Behavioral responses of nile tilapia (oreochromis niloticus) to feed restriction regime. Alexandria Journal of Veterinary Sciences Vol. 59, no. 2 (Oct. 2018), pp.1-10.
https://search.emarefa.net/detail/BIM-1341120
American Medical Association (AMA)
Ramadan, Samih A. G.& Mahbub, Hamadah D. H.& Hilal, Muhammad A. Y.& Ahmad, Walaa S. H.. Behavioral responses of nile tilapia (oreochromis niloticus) to feed restriction regime. Alexandria Journal of Veterinary Sciences. 2018. Vol. 59, no. 2, pp.1-10.
https://search.emarefa.net/detail/BIM-1341120
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 7-10
Record ID
BIM-1341120