Effect of different feeding times on growth performance and blood parameters of African catfish (Clarias gariepinus) under different stocking densities

Document Type : Original Article

Authors

1 Manshah Dahshur - Badrashin - Giza

2 مدرس إنتاج الاسماک ـ قسم الإنتاج السمکی ـ کلیة الزراعه جامعة الازهربالقاهرة

Abstract

Abstract: The current study was designed to study the effect of feeding times and different storage densities on water quality parameters, growth performance, feed use, chemical composition and blood biochemistry of African catfish (Clarias gariepinus). 180 catfish with an average initial weight of 196.6 ± 0.47 g were randomly distributed in 18 concrete ponds. The experiment was based on the design of a 3×2 factorial with three different feeding times (8 am, 12 pm, 6 pm), two types of stocking density (kg/m3) and (2 kg m3). The experimental fish were fed on commercial feed (36% protein). At a feeding rate of 3% of body weight for all groups. Water quality parameters, growth performance parameters, feed use, chemical composition, and blood parameters in all groups were calculated at the end of the experiment after eight weeks. The results indicated that water quality, growth performance, feed use, chemical composition and blood parameters improved significantly in the storage density groups (1 kg/m3) compared to groups (2 kg/m3) at the three feeding times. As for the three feeding times, there were statistically significant differences in (8 am and 6 pm) groups over the12 pm group . In conclusion, the use of stocking density (1 kg/m3) in aquaculture in African catfish culture improves water quality parameters, fish growth performance, feed use, chemical composition and blood parameters at different feeding times with most preferable times (8 am and 6 pm) over the 12 pm feeding time.

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Al-Azhar Journal of Agricultural Research

Articles in Press, Accepted Manuscript
Available Online from 10 March 2023

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