Four hundred seven-day old Avian broiler chickens were used to evaluate the effect of 0,300,600 and 900 IU/kg recombinant phytase on the performance and phosphorus utilization in comparison with dicalcium phosphate supplemented diet.

Recombinant phytase yield of 23077U/ml was reached in 25m3 manufacturing plant at 211h when the intelligent fed-batch weighing device was used.

Pharmacokinetics,systemic toxicity and immunogenicity of recombinant methioninase in primates;

Study on the Applied Properties of Plant Phytase;

Rapid determination of phytase activity by near infrared reflectance spectroscopy;

Study on reducing the cost of alcohol production by phytase;

Primary study on phytase expression condition of the recombinant Pichia pastoris;

Optimum conditions for phytase liquid fermentation;

An experiment was conducted to determine effects of non-phytate phosphorus(NPP) and microbial phytase on performance,nutrient utilization,tibia development and plasma parameters in 1 to 21-day-old broiler chicks fed with a corn-soybean meal diet and to evaluate the equivalency values of microbial phytase for inorganic phosphate(Pi).

To study the effect of microbial phytase on nutrients metabolism and to study the regressive equations of the nutrients metabolism with contents of phytic acid,24 Arbor Acres clocks were randomly divided into six treatments according to a random factorial arrangement,and each treatment represented by four replicates of one clock each,and clocks were fed diet with 0,4,6,8,10,12 g/kg phytic acid.

The effects of supplementation of microbial phytase and cellulase and their interactions on performance,apparent utilization of nutrients,and tibia quality index of layers were investigated in a 31-week feeding trial using 192 Hisex layers of 18-week-old fed on maize and soybean meal diets.