The Effect of Replacing Fish Meal in the Diet with Enzyme-Treated Soybean Meal (HP310) on Growth and Body Composition of Rainbow Trout Fry

Abstract

Abstract:The potential of enzyme-treated soybean meal powder (HP310) as fish meal alternative in diets for rainbow trout weighing 1.17˘0.3 g was evaluated for 60 days. Fish meal was replaced with HP310 at 25%, 50%, 75% and 100% of experimental diets. A control group was also considered. The results showed that diets containing 75% and 100% HP310 had significantly higher feed conversion ratio and lower feed intake, weight gain and specific growth rate compared to fish feed diets containing higher levels of fish protein ingredients (p < 0.05). Results suggested use of 50% HP310 in trout diet had a positive effect on growth performance (p < 0.05). All fish feed diets with HP310 had lower hematocrit, hemoglobin and red blood cells compared to the control group, but the differences between the control and the other treatments up to 75% HP310 replacement levels of diet (p > 0.05). However increasing in level of HP310 in the diet caused a significant increase of the white blood cells (p < 0.05). The fish fed with a diet totally replaced by HP310 showed the highest values of ash and moisture content among the diets and showed significantly different levels when compared with the control and other feeding treatments (p < 0.05).

Effects of black soldier fly (Hermetia illucens ) larvae meal protein as a fishmeal replacement on the growth and immune index of yellow catfish (Pelteobagrus fulvidraco )

“…Proper diet formulation is one of the most important factors in commercial aquaculture as feed production costs and associated impact on subsequent fish growth are major expenses (Haghbayan & Shamsaie Mehrgan, ). Fish meal (FM) is the primary source of protein in fish feed (Gatlin et al., ).…”

“…Fish meal (FM) is the primary source of protein in fish feed (Gatlin et al., ). It is produced by processing whole, or parts of, fish and is known to be a highly nutritious and palatable protein source (Ding, Zhang, Ye, Du, & Kong, ; Haghbayan & Shamsaie Mehrgan, ). However, the continued growth of the aquaculture industry has been limited by a shortage in global production of, and competition for, FM by livestock and poultry.…”

“…Consequently, the price of FM has increased by more than twofold in recent years (Dalsgaard, Ekman, Pedersen, & Verlhac, ). Furthermore, increased production of FM has increased pressure on marine ecosystems (Adelizi et al., ; Haghbayan & Shamsaie Mehrgan, ).…”

Effect of Microbial Phytase on Nutrient Availability and Growth of Juvenile Clarias gariepinus Fed Soyabean and Groundnut-based Diets

“…Improved growth performance by phytase in fish diet have also be reported for juvenile Clarias gariepinus fed diet based on full fat soya bean [18]. Haghbayan and Mehrgan, [59] reported growth improvement in rainbow trout fed soya bean diet supplemented with enzyme complex. Although a possibly higher than 0.40% available phosphorus by phytase was reported [17], the highest growth achieved at 250 FTU/g, with a corresponding available phosphorus of 0.53% compared to 0.54% recorded for 1000 FTU/g, which recorded the lowest growth performance compared to control, 250, 500 and 750 FTU/g phytase, showed that the available phosphorus of 250 FTU/g (0.53%) and phosphorus of 0.81% may be required for optimum growth performance of juvenile C. gariepinus.…”

Dietary Supplementation with Dried Syzygium cumini Flesh Improved Growth and Physiological Parameters in Hybrid Catfish (Clarias macrocephalus × C. gariepinus)

“…In this research, the underlying mechanisms of action of herbal plants on the growth of fish are not well understood. Such reports indicated that active compounds found in the plant extracts may potentially improve feed intake, nutrient digestion, metabolism, and absorption capacity of the nutrients by increasing the activities of certain intestinal digestive enzymes (Haghbayan and Mehrgan, 2015;Mohammadi et al, 2018;Sewaka et al, 2019). Furthermore, scientific studies have demonstrated that positive effects of diets supplemented with phytogenic additives would directly induce the expression of growth hormone (GH) and insulin-like growth factors (IGFs) mRNA in order to promote muscle cell proliferation and differentiation, resulting in a pronounced increase in the growth rate of fish (Sruthi et al, 2018;Ahmadifar et al, 2019).…”