Effects of phytate, phytase and dietary phosphorus on feed intake, growth performance and phosphorus utilisation in Atlantic salmon (Salmo salar, L.) ...

• Main Author: Sajjadi, M
• Format: Thesis
• Language: unknown
• Published: University Of Tasmania 2023
• Subjects: Atlantic salmon; Salmo salar
• Online Access: https://dx.doi.org/10.25959/23246234; https://figshare.utas.edu.au/articles/thesis/Effects_of_phytate_phytase_and_dietary_phosphorus_on_feed_intake_growth_performance_and_phosphorus_utilisation_in_Atlantic_salmon_Salmo_salar_L_/23246234

One of the key research areas in aquaculture nutrition is fish meal replacement. Plant derived materials such as legume and oilseed meals and protein concentrates are being investigated and used in aquafeeds. However, the use of these ingredients is limited by antinutritional factors. Phytate is an important antinutritional factor that impacts on phosphorus utilisation and excretion in monogastric animals including fish. Phytate has negative effects on growth performance, protein and mineral, especially phosphorus, digestibility and utilisation. Both purified phytic acid and natural sources of phytate were used in the present study. Different criteria such as growth performance, chemical composition and nutrient apparent digestibility were measured to assess the effect of phytate and phytase on Atlantic salmon (Salmo salar, L.). Furthermore, due to the importance of phosphorus in environmental loading, the effect of phosphorus intake on phosphorus utilisation was also investigated. The first experiment ...