Effects of pretreatment with microbial phytase on phosphorous utilization and growth performance of Nile tilapia (Oreochromis niloticus)
TLDR
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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Dissertation
Studies on the suitability of Jatropha curcas kernel meal as an alternative protein source in diets for carp (Cyprinus carpio) and tilapia (Oreochromis niloticus)
TL;DR: Direct comparison between diet J50 andJ50Inc showed that J50Inc had significantly better body mass gain than J50 (p = 0.034), and body lipid content and lipid productive value was significantly higher in the control fish than all other treatments.
Book ChapterDOI
Nutrition and feeding
TL;DR: The factors affecting tilapia feed and feeding strategies, including fish species and size, feed composition, form shape and colour, feeding levels and frequency and culture conditions are all described.
Journal Article
Growth performance and nutrient digestibility of Cirrhinus mrigala fingerlings fed on soybean meal-based diet supplemented by phytase.
Sajid Hussain,Muhammad Mudassar Shahzad,Farhat Jabeen,Shabab Nasir,Muhammad Afzal,Arshad Javid,S. P. Ahmad,Muhammad Zubair-ul-Hassan Arsalan,Danish Riaz,T. A. A. Khichi,Aznavar Ahmad,Muhammad Furqan +11 more
TL;DR: It is suggested that the phytase supplemented soybean meal based diet at 1000 FTU kg -1 level is optimum to release sufficient chelated nutrients for C. mrigala fingerlings.
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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