EFFECT OF ORGANIC MANURES OR CHEMICAL FERTILIZERS ON WATER PARAMETERS AND GROWTH PERFORMANCE OF COMMON CARP (Cyprinus carpio) IN RICE FIELDS

Document Type : Original Article

Authors

1 Department of Aquaculture Central Laboratory for Aquaculture Research, Abbassa, Abo- Hammad, Sharkia Governorate, Egypt.

2 Department of Fish Nutrition, Central Laboratory for Aquaculture Research, Abbassa, Abo- Hammad, Sharkia Governorate, Egypt.

Abstract

This study aimed to evaluate water parameters, the nutritive value, growth
performance. fish productivity and economical efficiency of common carp (Cyprinus
carp < /em>io) reared in rice fields that received weekly applications of nitrogen and
phosphorus. at similar quantities, from three diHerent sources. Nine rice fields '(0.25
feddan each) were cultivated by rice and divided inlo three groups. The first group
(T1) weekly received 150 kg total solid per feddan (Tslfed.) of poullry manure. the
second group (T2) weekly received 300 kg Ts/fed. of dairy cow manure, and in the
third group (13) 12.86 kg/fed. urea plus 26.3 kg/fed. triple super phosphate were
applied weekly. All fields were stocked with common carp at a rate of 1500
fingerlings/led. 'Nith an average weight of 2.21 g. The growing season for common
carp fish was 90 days. The obtained results showed that treatment applied had
significant effect on final body weight. specific growth rate, body length and condition
Iactor of common carp. The highest survival rate was obtained with group of fish on
T1 (allowed by T2 and T3 treatments, respectively. The highest net production was
recorded at T1 followed by T2 and 13 treatments. respectively. The contents of dry
matter decreased according to the diHerent treatments while it was the reverse for the
protein, fat and ash. Water quality was generally good in ponds fertilized with poultry
manure than in ponds of other treatments. The highesl net return was recorded with
group of fish on Tl followed by T2 and T3 treatments. respectively. In general, the
results of this study indicate that the organic nutrient sources were more productive
than the inorganic ones but the difference in effectiveness of poultry and cow manures
was surprising.

Keywords

Journal of Animal and Poultry Production
Volume 30, Issue 9
September 2005
Pages 5071-5079

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