Effects of Microbial Phytase Supplementation to Diets with Low Non-Phytate Phosphorus Levels on the Performance and Bioavailability of Nutrients in Laying Hens

Effects of Microbial Phytase Supplementation on Egg Production and Egg Quality in Hy-line Brown Hens During the Late Laying Period

“…Similarly, Yan et al (2009) noted that the digestibility of calcium, nitrogen, and P increased linearly with increasing phytase doses in 68-week-old hens. Um et al (1999) supplemented with 250 U/kg of phytase and observed significant effects on the mineral contents of the tibia (i.e., zinc, iron, copper, and magnesium). The beneficial effects on egg weight and HU may be due to favorable alterations in the intestinal environment and function, which subsequently increased intestinal nutrient absorption.…”

Effects of freeze‐dried Mitsuokella jalaludinii culture and Natuphos® phytase supplementation on the performance and nutrient utilisation of broiler chickens

“…Sebastian et al 4 also found that supplementation of phytase to broiler feed reduced P excretion from 42 to 51%. Hens consuming a low‐aP feed (1.1 g aP kg −1 ) supplemented with microbial phytase (250 U kg −1 feed) excreted 42.3% less P than control birds fed a normal‐aP feed (2.6 g aP kg −1 ) 46. In general, P excretion by pigs and poultry could be reduced by 20–50% with the addition of 200–1000 U of phytase 47…”

Dietary exogenous phytase improve egg quality, reproductive hormones, and prolongs the lifetime of the aging Hy-Line brown laying hens fed nonphytate phosphorus

“…Previously, Um et al (1999) and Jalal and Scheideler (2001) reported that phytase supplementation to various NPP-containing diets had significantly increased feed consumption and improved feed efficiency. On the other hand, Wang et al (2013) , Englmaierova et al (2014) , Kim et al (2017) , and Saleh et al (2021) elucidated that phytase supplementation to the NPP diets or only phytase did not affect feed consumption and feed efficiency in layer hens.…”