A COMPARATIVE STUDY ON PRODUCTION AND ECONOMIC OF INTEGRATED DUCK-FISH AND JNORGANIC FERTILIZER­ SUPPLEMENTARY FEED FISH CUJ.TURE SYSTEMS.

A COMPARATIVE STUDY ON PRODUCTION AND ECONOMIC

OF INTEGRATED DUCK-FISH AND JNORGANIC FERTILIZER­

SUPPLEMENTARY FEED FISH CUJ.TURE SYSTEMS.

M.A. ESSA·, M.E. SALAMA” AND A.K. SOLIMAN·”
* National Institute of Oceanography an~ Fisheries. Kayed Bey. Alexandrla.Eg~t.

** Department of Animal and Fish Product10n. faculty of Agriculture. Helwan.

University, Egypt.

*** Department of Animal Production, Facu1ty of Agriculture, University of
Alexandria, Egypt.
ABSTRACT
The Integration of fish culture with livestock
rearing holds great potential for augmenting
production of animal protein and bettennent of
economy. A trial on duck-fish farming Is described
and the results are compared with those of an
fnorganic ‘ferttllzer-supplementary feE’d fish culture
system. Fish yield from the integrated ponds (where
no supplementary feeds of fertilizers) was higher
(1041.02 kg/feddan/yr) than that of the control
ponds (Fish only. 968.08 kg/feddan/yr). The net
profit as a percentage of total variable costs in
the integrated ponds was better (57.70 I) thall that
of control ponds (33.03 I). Therfore the high
construction and operation costs can be recovered
earlter.