20 research outputs found
Potec PRK-6000 otorefraktometre,İOL master ve pentacam ile ölçülen keratometri değerlerinin tekrarlanabilirliği ve karşılaştırılması
Okulçağı çocuk ve erişkin popülasyonda plusoptix S08,potec PRK-6000 ve Nidek ARK-30 elde taşınabilir otorefraktometre ile ölçülen refraksiyon kusurlarının karşılaştırılması
Evaluation of the nerve fiber layer and macula in the eyes of healty children using spectral-domain optical coherence tomography
How many cores should be taken in a repeat biopsy on patients in whom atypical small acinar proliferation has been identified in an initial transrectal prostate biopsy?
Effect of phytase in laying hen diets with different phosphorus sources
An experiment was conducted to evaluate the effects of the enzyme phytase in diets formulated with different phosphorus sources on performance, eggshell quality and excretion of commercial laying hens. Two hundred and eighty-eight commercial Hyssex Brown laying hens were evaluated during two production phases, which included eight twenty-eight-day cycles, using a completely randomized design in a 3x2 factorial with six replicates of eight birds per treatment. Three phosphorus sources (calcium and sodium phosphate, micro-granulated dicalcium phosphate and triple super phosphate) and two phytase levels (0 or 1000 FTU/kg diet) were tested in the composition of the diets. After the post-peak period, triple super phosphate decreased bird performance and eggshell quality. It was possible to reduce the levels of phosphorus supplementation when phytase was added to the diet. Besides, phytase supplementation reduced phosphorus, calcium and nitrogen excretions, but affected mean egg weight at production peak