Effect of water temperature on growth, survival and digestive enzyme activities of Beluga (Huso huso) and Persian sturgeon (Acipenser persicus) larvae from hatching to yolk sac absorption stage

The application of protease in aquaculture: Prospects for enhancing the aquafeed industry

“…One of them is their requisite incorporation into the feed components, in a manner that averts denaturation and inactivation during processing, such as extrusion, drying, and subsequent storage, or alternatively, facile solubilization and elimination via a straightforward top-coating process upon administration to the culture pond, particularly when the feed is not quickly consumed ( Boyd et al., 2020 ). Another is fluctuant enzyme activities as the activities of endogenous digestive enzymes in fish are significantly affected by the temperature of the environment compared to homeothermic animals ( Hashemi et al., 2018 ; Ma et al., 2019 ). It must be emphasized that accurate determination of the protease inclusion level is an important aspect of ensuring the efficiency of exogenous proteases in fish feeding.…”

Physicochemical and biochemical properties of intestinal trypsin from sturgeon fish

“…The beluga (Huso huso) and the sevruga (Acipenser stellatus) are of the most important species of sturgeon sh (Acipenseridae) inhabited in the Caspian Sea in the north of Iran with a high demand for products such as caviar, meat, skin, and cartilage (Ghomi et al 2012; Asgari et al 2013;Hashemi et al 2018). Today, the sturgeons are considered as the vulnerable sh species for different reasons like over shing for production of meat and caviar, water pollution and destruction of their natural habitat (Babaei et al 2011;Ghasemi et al 2020).…”