EFFECT OF POULTRY DRY MANURE (PDM) LEVELS ON SILVER CARP (HYPOPHTHALMICHTHYS MOLITRIX) PERFORMANCE | ||||
Egyptian Journal of Agricultural Research | ||||
Article 31, Volume 78, Issue 2, July 2000, Page 893-918 PDF (6.08 MB) | ||||
Document Type: Original Article | ||||
DOI: 10.21608/ejar.2000.322522 | ||||
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Authors | ||||
NABIL A. ABEDEL-HAKIM1; FATMA A. HAFEZ2; EHAB A. EL-HELALI1; AHMED A. HASSAN2 | ||||
1Faculty of Agriculture. Al - Azhar University, Nasr City, Cairo, Egypt | ||||
2Central Laboratory for Argreculture Research at Abbassa, Agricultural Research Centre, Ministry of Agriculture, MAU, Giza, Egypt | ||||
Abstract | ||||
This study was carried out to investigate the effect 01 level of poultry manure and stocking density on growth performance of silver carp (HypophMalmichtnys mollate. Six recangle earthen ponds, each of a total area of about 0.25 leddan (50 x 20 m) representing six treat-mans (3 levels of poultry manure 150. 300 and 450 kgneddarVweek within each two stocking densities 3200 and 4800 fisMeddan), were used In this study. The experiment expanded 20 weeks. Results obtained showed that average body weight and body length of silver carp fish during the experiment increased with increasing poultry manure levels and the increase was more pronounced at lower slacking density (3200 s !VI eel de n ). Analysis of variance showed that the differences between average body weight and body length were significant (bc0.05). Other growth performance parameters are also discussed. In general, results indicated that body weight of silver carp increased within each manuring level as the stocking density decreased the increase in this trait was more pronounced at higher manuring levels. The same trend was observed for body length. Body weight gain increased with increasing manuring level. The results indicated that fish grow better at lower stoking density (3200 fish/fed). The results indicated that increasing manuring level results in an improvement in SGR. Increasing stocking density led to decrease SGR. Generally. the results indicated that level of manuring and stocking density seemed to have no influence on condition factors. | ||||
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