Inclusion effect of soybean meal, fermented soybean meal, and Saccharina japonica in extruded pellet for juvenile abalone (Haliotis discus, Reeve 1846)

Abstract

Inclusion effect of soybean meal (SBM) and fermented SBM (FSM) in extruded pellet for juvenile abalone (Haliotis discus) was compared in abalone farm. Dietary inclusion effect of the combined macroalgae (MA) (Undaria pinnatifida and Hizikia fusiforme) and a single Saccharina japonica on abalone was also compared. Three thousand six hundred juvenile abalone were purchased from a private hatchery and acclimated to the experimental conditions for 2 weeks. Six 5-ton flow-through raceway tanks were used, and abalone were randomly distributed into tanks (n = 600 per tank). Three experimental diets were prepared in duplicate. Fish meal, FSM, corn gluten meal, and shrimp meal and wheat flour and dextrin were used as the protein and carbohydrate sources, respectively, in the FSM diet. MA was also included in the FSM diet. FSM and MA in the FSM diet were substituted with SBM at the expense of wheat flour and S. japonica, referred to as the SBM and SJ diets. The experimental diets were pelletized by an extruded pelleter. Water stability of nutrients in the experimental diets was monitored at 12, 24, and 48 h after seawater immersion. The experimental diets were fed to abalone once a day to satiation with a little leftover for 120 days. The retained crude protein and lipid and ash content of the extruded pellets were changed over all period of time. Weight gain and specific growth rate (SGR) of abalone fed the SBM diet were greater than those of abalone fed the FSM and SJ diets. Weight gain and SGR of abalone fed the SJ diet were also greater than those of abalone fed the FSM diet. The longest shell length, widest shell width, highest shell height, and greatest soft body weight were obtained in abalone fed the SBM diet, followed by the SJ and FSM diets. Proximates of the soft body of abalone were not different among the experimental diets. In conclusion, SBM was a superior protein source to FSM in extruded pellet for growth performance of abalone. Dietary inclusion of a single S. japonica was superior to the combined inclusion of U. pinnatifida and H. fusiforme in the production of abalone.

Soybean genetic resources contributing to sustainable protein production

“…The red grid represents essential amino acid, while the black grid represents non-essential amino acid (INRA 2004). Due to its high quality and low price, soybean meal has gradually replaced expensive fish protein powder and is playing an increasingly important role in aquaculture (Yun et al 2018). Soybean protein concentrate (SPC) can be used to largely replace skimmed milk powder and milk for feeding calves and can also be used as a pre-fermented feed to replace skimmed milk powder, whey protein, and fish protein powder for piglets (Dei.…”

Flakes versus noodles as feed for the abalone Haliotis asinina , does form matter?

“…Aside from the noodle form commonly used in feeding experiments at SEAFDEC/AQD, other abalone diet forms include 0.15 cm thick sheets, cut into 1 cm 2 (Ansary et al, 2019;Choi et al, 2018;Jung et al, 2016;Kim et al, 2016); 2 × 2 × 3.5 cm cubes (Angell et al, 2012); 0.5 cm dia tablets (Susanto et al, 2016); 4 × 3 × 2 mm flat pellets (Bansemer et al, 2014); pellets (Yun et al, 2018); and powder, crumble and chips (Kirkendale et al, 2010), among others. For a crawling grazer, however, a very thin and flattened feed may be easier to access and forage.…”

Effect of Soybean and Seaweed-based Diets on Growth Performance, Feed Utilization, and Gut Microbiota of Tilapia: A Systematic Review and Meta-analysis

“…Therefore, there is a growing interest in exploring alternative protein sources for fish feed, such as soybean and seaweed. Soybean is a cost-effective, and widely available plant protein source [12,13], while seaweeds offer unique nutritional properties and are natural forage for fish [14]. These alternative ingredients have been investigated as partial or total replacements to improve the growth performance and feed efficiency of tilapia.…”