An advanced Escherichia coli phytase improves performance and retention of phosphorus and nitrogen in rainbow trout (Oncorhynchus mykiss) fed low phosphorus plant-based diets, at 11 °C and 15 °C

Rapeseed proteins as fishmeal alternatives: A review

“…158 It has been widely included in diets for terrestrial animals, while its effectiveness in aquatic animals has been limited. 174 Limitations for fish could inter alia be due to the lower body temperature in comparison with terrestrial animals. 174 However, advances have been made in the application of different phytases in cold water fish and the activity of phytases was also shown to depend on factors like pH, type of phytase, resistance to proteases, diet preparation methods, animal-related factors, phytate content and ingredient composition.…”

“…174 Limitations for fish could inter alia be due to the lower body temperature in comparison with terrestrial animals. 174 However, advances have been made in the application of different phytases in cold water fish and the activity of phytases was also shown to depend on factors like pH, type of phytase, resistance to proteases, diet preparation methods, animal-related factors, phytate content and ingredient composition. 169,[174][175][176][177] Phytases showed the highest activity at a pH between 4 and 6.…”

“…174 However, advances have been made in the application of different phytases in cold water fish and the activity of phytases was also shown to depend on factors like pH, type of phytase, resistance to proteases, diet preparation methods, animal-related factors, phytate content and ingredient composition. 169,[174][175][176][177] Phytases showed the highest activity at a pH between 4 and 6. 169 Additionally, elevated dietary levels of calcium, a preferred binding substance for phytic acid, can reduce the effectiveness of dietary phytase supplementation by reducing the solubility of phytates at intestinal pH.…”

“…Dietary supplementation with phytase has been demonstrated to be effective in elevating the digestibility of phosphorus and other minerals in different animals 158 . It has been widely included in diets for terrestrial animals, while its effectiveness in aquatic animals has been limited 174 . Limitations for fish could inter alia be due to the lower body temperature in comparison with terrestrial animals 174 .…”

Effects of dietary phosphorus deficiency on the growth performance, hepatic lipid metabolism, and antioxidant capacity of Yellow River Carp Cyprinus carpio haematopterus

“…In addition, escalating prices and a limited supply of fish meal have forced the aquaculture industry to use plant feedstuffs (Jannathulla et al 2019). However, the majority of total P in plant feedstuffs consists of phytate-P, and most aquatic animals cannot utilize phytate-P due to a lack of phytase in the digestive tract (Lee et al 2020).…”