Effect of some water sources on growth performance of Nile tilapia (Oreochromis niloticus) and Grey mullet (Mugil cephalus)

Document Type : Original Article

Authors

1 Central Laboratory for Aquaculture Research, Sakha Aquaculture Research Unit. Fish diseases Department, Egypt.

2 Central Laboratory for Aquaculture Research, Agriculture Research Center. Fish production Department, Egypt.

Abstract

The present experiment was carried out to study the impact of water sources on
cultured Nile tilapia; Oreochromis niloticus and Grey mullet; Mugil cephalus. Six
earthen ponds (1 feddan for each) were used in this experiment in three different farms
in the same area. Three treatments were tested in two replicates (2 ponds), therefore
six ponds were stocked with O. niloticus (9000 fish/pond) and (3000 fish/pond) of
Grey mullet for each pond. O. niloticus and M. cephalus fingerlings averaged 37.18,
38.14 and 36.56g for O. niloticus and 23.69, 21.89 and 22.15g for M. cephalus in
weight were assigned randomly to the three treatments. The first experimental ponds
group was supplied by underground water, while the second group was supplied by
agricultural drainage water and finally, the third ponds group were irrigated by a
mixture between underground water and drainage waste water. The growth experiment
period lasted for 26 weeks and the obtained results indicated that, the third ponds
group showed the best regarding health and growth of cultured fishes.
Though water performance quality characteristics differ between underground
water and agricultural drainage water, but both sources are considered suitable for
aquaculture. And ground water and mixture between underground water and drainage
water are gave the best of final weights and the highest total yields and quite safe for
human consumption.

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