| Titles |
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English :
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Studies on non conventional feedstuffs in feeding of catfish
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Arabic :
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دراسات عن مواد العلف الغير تقليدية في تغذية سمك القراميط
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| Abstract |
This experiment was conducted at Fish Nutrition Laboratory, Research Department, Animal Production Research institute, Agricultural Research Center, Ministry of Agriculture, of Egypt. This work aimed to study the effect incorporation of poultry, cattle and rabbit manure at different levels (10, 20, 30%) on growth performance of catfish fingerlings clarias lazera) as non-conventional feedstuffs. Catfish fingerlings averaging between 20.8,to 21.3 gm in weight were Allotted randomly To 10 Dietary treatments in 3 replicates each, using 30 glass aquarium units. The size of aquarium was 60 cm in length x30 cm in width x40 cm in height with capacity about 72 litters and connected with electric air pump Treatments were arranged to be one contro1 and 9 groups representing 10, 20 and 30% levels of poultry, cattle and rabbit manure) respectively. The experimental rations were formulated to be iso-calorie, iso-nitrogenous and contained about 27.9, to 28.2% crude protein and about 4200 to 4260 Kcal gross energy/kg of the rations. Fish per aquarium were stocked at a rate of about 55 fish/m3 and fed at level of 3% of fresh body weight. The experimental period extended to 10 weeks after start. Water temperature was between 29- 27c. Fish fresh weight was measured and recorded weekly then diet was adjusted according to the last weight. At the beginning of the experiment, random samples of fish were killed chopped, homogenized, dried and ground carefully for analysis, while all fishes in each treatment were processed as above for chemical analysis at the of the experiment. Results obtained can be summarized as follows: Averages of live body weights at the end of the experimental period for the control, the 10, 20 and 30% DPM, DCM and DRM fed groups were 46.53, 56.7, 47.5, 43.2, 35.3, 41.8, 39.9, and 37.0, 38.0 and 41.2, g respectively. Results showed also that both 10 and 20% DPM had significantly (P<0.05) superior final live weights compared with the control, however, the control group showed significantly higher (P<0.05) final weights compared with all other tested groups. Regardless of manure level fed, groups fed on DPM showed , significantly (P<0.05) higher final weights compared with the DCM and DRM fed catfish groups. Regardless of manure source. the 10 and 20 % levels of manure fed seemed to have significant effect on final weights of growing cat fish Averages of feed conversion ratios for the control the 10. 20 and 30% DPM fed groups were 2.22. 1.8. 2.1 and 2.4 kg feed required for each kg gain in live weight respectively. The best feed conversion ratio was obtained by the 10% DPM fed group followed in descending order by 20% DPM. control and 30% DPM fed groups respectively. The control group showed significantly (p<0.05) better feed conversion ratios compared with groups fed DCM and DRM at the three levels tested. Regardless of level of manure fed DPM showed significantly (p<0.05) better feed conversion ratio compared with DCM and DRM. Differences in this trait among DCM and DRM were insignificant.
Irrespective of manure source fed. the 20 % level of manure incorporation in growing catfish diets had significant effect on feed conversion ratio. the 10 and 20% DPM fed catfish groups showed significantly (p<0.05) better specific growth rate records compared with the control and the 30% DPM groups. On the other hand the control group was significantly (p<0.05) superior in this trait compared with the groups fed DCM or DRM at the three levels tested. Specific growth rate records during the whole experimental period as affected with manure source regardless of level. Were 1.2, 0.89 and 0.88 for DPM. DCM and DRM groups. respectively. indicating that DPM improved significantly (p<0.05) this trait compared with the other manure sources tested. Level of 10 and 20 % of manure fed regardless of its source seemed to have significant effect on specific growth rate of growing catfish. Both manure level and manure source have significant (p<0.05) on protein efficiency ratio. protein productive value. energy efficiency ratio and energy productive value of growing catfish. . Manure sources and levels seemed to have no effect on chemical composition of the whole fish body at the end of the experiment. The lowest feed costs required for production of one kg live weight were obtained by 10% DPM fed group followed in an order by 20% DPM. 30% DPM. and control fed group.
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| Publication year |
1993
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| Pages |
148p.
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| Availability location |
مكتبة معهد بحوث الانتاج الحيوانى-شارع نادى الصيد - الدقى - الجيزة
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| Availability number |
429
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| Organization Name |
Animal Production Research Institute (APRI)
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| Country |
Egypt
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| Department |
Agricultural By-products Utilization Research Department
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| Author(s) from ARC |
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| Agris Categories |
Animal feeding
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AGROVOC
TERMS |
Feeds.
Fishes.
Nutritional status.
Organic fertilizers.
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| Publication Type |
Master Thesis
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