High protein krill meal as a tool to optimize low cost formulas for juvenile Litopenaeus vannamei diets farmed under semi-intensive conditions

Leonardi, Geronimo; Nunes, Alberto Jorge Pinto; Badillo, Miguel; Burri, Lena

doi:10.1080/10454438.2021.1976346

Cited by 4 publications

(3 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…with varying degrees of success (Nunes et al 2006, Grey et al 2009, Nunes et al 2019, Leonardi et al 2021, Soares et al 2021). Nunes et al (2019 determined that a KM diet supplement is a powerful feed effector and growth enhancer, and Leonardi et al (2021) showed that diets supplemented with KM resulted in significantly higher yields with significantly lower feed cost per kg of Pacific white shrimp. A study by Yuan et al (2021) found that FH and SM supplements to a "bland diet" significantly increased the feed intake of Pacific white shrimp.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Utilising feed effectors and automated feeders for semi‐intensive pacific white shrimp (Litopenaeus vannamei) production

Walsh

Nguyen

Strebel

et al. 2022

Aquaculture Fish & Fisheries

View full text Add to dashboard Cite

Feed effectors have been suggested to improve the efficiency of plant‐based shrimp diets by increasing attractability and palatability. This research trial aimed to expand upon previous Pacific white shrimp (Litopenaeus vannamei) research involving plant‐based diets, feed effectors and passive acoustic monitoring (PAM) in a laboratory setting by conducting a feed trial in outdoor semi‐intensive ponds stocked at 30 shrimp/m2. A 13‐week trial was conducted in sixteen 0.1‐ha ponds equipped with PAM‐integrated feeders, which allowed for demand‐style feeding. Four soy‐optimised diets, consisting of an ‘all‐plant’ basal diet (AP) and three diets with an attractant (2% krill meal (KM), 2% squid meal (SM), 4% fish hydrolysate (FH)), were fed to the shrimp for a period of 74–75 days. Significantly more (p = 0.0131) of the FH diet was fed to the respective ponds than the KM and AP diets, suggesting that the addition of FH to soy‐optimised diets increases the intensity of the feed response in shrimp cultured in semi‐intensive ponds. The same diets offered in predetermined amounts to shrimp in an outdoor, recirculating green water system resulted in no significant differences (p > 0.05) between treatment means for final weight or weekly growth rate. However, there was a significant difference (p = 0.021) in survival between the AP treatment (85.83%) and the FH treatment (95.83%), which led to the final biomass (p = 0.004) and FCR (p < 0.0001) of the AP treatment being significantly different from all other treatments. The reduced response observed in the AP treatment suggests that the addition of attractants may improve the performance of plant‐based diets in RAS.

show abstract

Section: Discussionmentioning

confidence: 99%

“…(2019) determined that a KM diet supplement is a powerful feed effector and growth enhancer, and Leonardi et al. (2021) showed that diets supplemented with KM resulted in significantly higher yields with significantly lower feed cost per kg of Pacific white shrimp. A study by Yuan et al.…”

Section: Discussionmentioning

confidence: 99%

Utilising feed effectors and automated feeders for semi‐intensive pacific white shrimp (Litopenaeus vannamei) production

Walsh

Nguyen

Strebel

et al. 2022

Aquaculture Fish & Fisheries

View full text Add to dashboard Cite

show abstract

“…In addition, the utilization of animal‐based proteins should comply with regulatory guidelines like federal regulations of the USFDA (Title 21 Part 589.2000) and the European Community 9 . On the other hand, a number of unconventional ingredients such as meals from krill and mesopelagic fish 10–12 as well as microbial products 13–15 and insect‐based proteins are also been tested in recent times 16–18 . Though they are good enough in reducing the dietary fishmeal level, they could not be sustained in commercial formulae due to their price and limited availability.…”

Section: Introductionmentioning

confidence: 99%

Beneficial effects, challenges and opportunities of the filamentous fungus, Aspergillus niger with special reference to the shrimp feed industry—A review

Jannathulla

Dayal

2022

Reviews in Aquaculture

View full text Add to dashboard Cite

The shrimp industry, including its culture and feed sectors, exhibited steady growth over the years with a reduced cost–benefit ratio due to increasing production costs attributed mainly to enhanced feed costs. The unsustainable availability and rapid increase in fishmeal cost have forced the aquafeed sector to reduce dietary inclusion levels. The filamentous fungus, Aspergillus niger plays an important role in utilising plant protein sources for formulating cost‐effective shrimp feed. A. niger has been reported to produce numerous hydrolytic enzymes to degrade the limiting factors of plant proteins such as antinutrients and fibre fractions. This fungus enhanced not only the quantity but also the quality of proteins and amino acids, especially methionine and lysine. Likewise, it also increased the availability of soluble minerals, particularly phosphorous, by degrading the phytic‐phosphorus, thereby helping to replace dietary fishmeal up to 80% in penaeid shrimps. Consequently, this fungus could reduce feed formulation cost significantly. However, the mycotoxins produced by this fungus pose difficulties during large‐scale fermentation, and its implications on the workers and environment cast doubt about its efficacy and utility. However, recent developments indicate that A. niger could be an alternative choice in reducing the pressure on fishmeal demand by enhancing the nutrient utilization of plant‐based materials leading to the formulation of, cost‐effective feeds that can sustain shrimp culture and production in the future.

show abstract

Feed Ingredients for Sustainable Aquaculture

McLean¹

2023

Sustainable Food Science - A Comprehensive Approach

View full text Add to dashboard Cite

High protein krill meal as a tool to optimize low cost formulas for juvenile Litopenaeus vannamei diets farmed under semi-intensive conditions

Cited by 4 publications

References 9 publications

Utilising feed effectors and automated feeders for semi‐intensive pacific white shrimp (Litopenaeus vannamei) production

Utilising feed effectors and automated feeders for semi‐intensive pacific white shrimp (Litopenaeus vannamei) production

Beneficial effects, challenges and opportunities of the filamentous fungus, Aspergillus niger with special reference to the shrimp feed industry—A review

Feed Ingredients for Sustainable Aquaculture

Contact Info

Product

Resources

About