Integration of chicken raising and rearing larval Clarias Gariepinus in large ponds
Obuya, S., J. Ochieng, and D. Campbell., 1995. Integration of Chicken Raising and Rearing Larval Clarias gariepinus in Large Ponds. KEN/86/027 Field Document No. 3. FAO. This paper presents the results from 24 trials of growing 4 day old larval Clarias gariepinus to the size of 7 to 15 g in large ponds of 1 340 m2 with fertilization supplied by laying chickens at a density of 770/ha. As a control, 5 trials were simultaneously conducted in a 700 m2 pond fed with a combination of 10 % fish meal, 20 % cotton seed cake, and 70 % rice bran. Rearing time varied from 18 to 44 days. In the trials with integration with chickens, total yield per harvest varied from 750 to 29 000 clarias fingerlings, with an average yield of 5.8 fingerlings /m2 (Std 4.9). There was no correlation between yield and rearing days in the pond. There was no significant difference between the results obtained with integrated farming and using composed fish feed. The extreme variation in results nullifies the hypothes is that large, well fertilized ponds improve the consistancy of survival rates in pond rearing of larval Clarias gariepinus. The paper concludes that the best approach for the future is to use small ponds well protected against predation.
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| Format: | Project biblioteca |
| Language: | English |
| Published: |
1995
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| Online Access: | https://openknowledge.fao.org/handle/20.500.14283/AC577E http://www.fao.org/3/a-ac577e.htm |
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