Effects of pretreatment with microbial phytase on phosphorous utilization and growth performance of Nile tilapia (Oreochromis niloticus)
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The results showed that diets pretreated with phytase gave better growth performance, feed conversion ratio and protein efficiency ratio of Nile tilapia compared with thephytase control diet and pretreatment control diet (P 0.05).Abstract:
This study was to assess effects of the pretreatment in allplant based diets with microbial phytase on phosphorous utilization and growth performance of Nile tilapia (Oreochromis niloticus). Pretreatment trials were conducted using phytase at graded doses to determine the optimal dose of phytase. Available phosphorus (P) levels increased significantly with the increased doses of phytase and the dose of 1000 U kg )1 was most efficient. Based on the pretreatment trials, plant based diets for Nile tilapia were formulated by pretreating with phytase at 1000 U kg )1 . Experimental diets were supplemented with graded levels of mono calcium phosphate (MCP) at 25, 18.75, 12.5, 6.25 and 0 g kg )1 diet. In addition, there were three controls: one phytase control, one inorganic P control and one pretreatment control. The results showed that diets pretreated with phytase gave better growth performance, feed conversion ratio and protein efficiency ratio of Nile tilapia compared with the phytase control diet and pretreatment control diet (P 0.05), which resulted in significantly better performance than those at 6.25 and 0 g kg )1 (P 0.05).read more
Citations
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Effects of replacing fish meal with soybean meal in diet on some morphometric indices of Persian sturgeon, Acipenser persicus.
TL;DR: Among soybean meal groups, feed efficiency and specific growth rate were significantly improved for fish fed the diet containing just phytase (SpH), and this was true for specificgrowth rate and condition factor.
Effects of Low Dietary Fishmeal on Growth, Nitrogen Loading and Some Physical and Chemical Indices of Asian Sea Bass Lates calcarifer (Bloch, 1790)
TL;DR: A 60-daytrialwasconducted determining the effect of reducing Dietaryfishmealdiet on Asianseabass, supplementing the amount with 1% Betainereduced thehepato-somatic and the conditionfactorweresignificantly increased.
Dissertation
ENHANCING THE EFFICIENCY OF OIL SEED BY-PRODUCTS BASED PRACTICAL DIETS FOR Labeo rohita FINGERLINGS
Hussain Shah,Syed Zakir +1 more
Production of a Soybean Meal with High-Protein and Low Anti-Nutritional Factors for Fish Feed
TL;DR: The aim of this work was to obtain a protein-rich soybean meal with low anti-nutritional factors and a greater protein digestibility to be used for fish food.
An Evaluation of Nitrogen Supplementation and Processed Soy Fractions on the Performance of Cultured Fishes
TL;DR: An evaluation of the impact ofiton preparation and processing on the performance of culture-based fishkeeping techniques and their applications in the context of cultural fish populations finds positive results.
References
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Book
Standard methods for the examination of water and wastewater
TL;DR: The most widely read reference in the water industry, Water Industry Reference as discussed by the authors, is a comprehensive reference tool for water analysis methods that covers all aspects of USEPA-approved water analysis.
Journal ArticleDOI
Principles and Procedures of Statistics.
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