TY  - SER
AU  - Sastradiwirja,T.M.Firmansjah
AU  - Yakupitiyage,Amararatne
AU  - Edwards,Peter
AU  - Machintosh,Donald J.
ED  - NAEP III (National Agricultural  Extension Project),  Ministry of Agriculture  Government of Indonesia, 
TI  - Protein and energy requirement of male red tilapia (Oreochromis niloticus x Oreochromis mossambicus)
T2  - Thesis
PY  - 1990///
CY  - Bangkok
PB  - Asian Institute of Technology
KW  - Tilapia
KW  - Fishes
KW  - Feeding and feeds
N1  - A thesis submitted in partial fulfillment requirements for the degree of Master of Science, School of Environment, Resources and Development; Thesis (M.Sc.) - Asian Institute of Technology, 1990
N2  - The protein and energy requirements of two size groups of  ma le red ti lap ia ( Ol'"l.!'.{u2022}oc:hl'"<:)m.:i..1r.: n.i. 1 c~t icu.rn: X 011 "1.\'.'0C::hl'"om.:i.J:;;  mossambicw;) for maximum growth and maintenance were  investigated in a clear water recirculating system utilizing  a semi-purified diet. Taking individual fish as replicates,  seven batches of fish of 34 g in average initial weight (small  size group) were fed at different feeding rates (assigned  rations: 0, 15, 20, 30, 35 g/kg body weight/d and ad libitum).  Individual fish in big size group (average initial weight 71  g) were also fed in a similar fashion at assigned rates of 0,  10, 15, 20, 25 g/kg body weight/ct and ad libitwn.  The functional relationship between various growth  parameters and feed intake was investigated with the aid of  regression analyses. There was a linear relationship between  growth and feed intake of fish . The protein and energy  requirements for maximum growth of fish group ranging from 33  78 g in weight was achieved with approximately 11.4 g  protein/kg body weight /d with a corresponding metabolisable  energy requirement of 449 KJ/kg body weight/d. The protein  and energy requirements for fish ranging from 74 - 105 g in  weight were 6.0 g protein /kg body weight/ct and 236 KJ/kg  body weight/ct respectively.  Regression analysis did not appear to be a reliable  method for the determination of protein and energy requirement  for maintenance as observed values depended upon the growth  parameter used in the regression analysis . In the small size  group, the protein requirement for maintenance ranged from  0.84 to 1 . 62 g protein/kg body weight/ct and the energy  requirement ranged from 33 to 64 KJ/kg body weight/ct. In the  big fish group the protein requirement ranged from 1 . 37 to  1.69 g protein/kg body weight/ct with corresponding energy  requirement of 54 to 67 KJ/kg body weight/d.  Suppression in fish growth of both groups was shown by  feeding ad libitum, so that restricted ration should be  applied to increase the production as well as to minimize the  feed cost
UR  - http://203.159.5.9/ait-thesis/detail.php?q=B18276
ER  -