Acoustic activity of Litopenaeus vannamei fed pelleted and extruded diets

Peixoto, Sílvio; Soares, Roberta; Silva, José Filipe; Hamilton, Santiago; Morey, Amit; Davis, D. Allen

doi:10.1016/j.aquaculture.2020.735307

Cited by 24 publications

(32 citation statements)

References 30 publications

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“…Like in penaeids, the mandibles are heavily calcified; however, the presence of an internal molar tooth with grinding function is a distinct feature for M. rosenbergii (Hunt et al, 1992;Kawamura et al, 2018;Silva et al, 2019). Molar and incisor teeth are composed of calcium phosphate, but molars are less mineralized and are covered by brownish chitinous layer (Bentov et al, 2016 Soares, Silva, et al, 2020;Silva et al, 2019), and showed the same SPL levels as those found for P. monodo n (Smith & Tabrett, 2013).…”

Section: Discussionmentioning

confidence: 87%

“…Click train pulses were also identified throughout the analysis of the recordings of M. rosenbergii. Click train pulses with duration from 16 to 142 ms and number of clicks per pulse between 2 and 8 were also described for L. vannamei by Peixoto, Soares, Silva, et al, (2020).…”

Section: Discussionmentioning

confidence: 99%

“…monodon and L . vannamei , such as pulse time duration (seconds), frequency band (hertz) and energy (decibel) (Peixoto, Soares, & Davis, 2020; Peixoto, Soares, Silva, et al, 2020; Silva et al, 2019; Smith & Tabrett, 2013). Passive acoustics monitoring (PAM) has been applied to detect and convert these clicks into electrical energy, allowing to assess an instant profile of shrimp feeding activity (Smith & Shahriar, 2013).…”

Section: Introductionmentioning

confidence: 99%

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Sound emission ofMacrobrachium rosenbergiiduring feeding activity

Hamilton

Silva

Filho

et al. 2021

Aquaculture Research

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Section: Discussionmentioning

confidence: 87%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Sound emission ofMacrobrachium rosenbergiiduring feeding activity

Hamilton

Silva

Filho

et al. 2021

Aquaculture Research

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“…A Context-Aware Dynamic Bayesian Network (CADBN) was then applied to take into account the time of feed distribution events in the pond to increase classification accuracy of feeding signatures (Smith & Shahriar 2013). Peixoto et al (2020a) also argued that acoustically effective feed should be used in ponds with such feeders to improve the detection accuracy of feeding events. Recordings with shrimp feeding on dry extruded diets showed higher sound intensity than pelleted feed, the consumption of extruded diets, therefore, being more likely to be detected from recordings (Peixoto et al 2020a).…”

Section: Passive Acoustic Monitoringmentioning

confidence: 99%

“…Peixoto et al (2020a) also argued that acoustically effective feed should be used in ponds with such feeders to improve the detection accuracy of feeding events. Recordings with shrimp feeding on dry extruded diets showed higher sound intensity than pelleted feed, the consumption of extruded diets, therefore, being more likely to be detected from recordings (Peixoto et al 2020a). To further increase detection success of feeding signatures, feed should also be consumed quickly after distribution since soaked feed loses its hardness and increases its water content, resulting in a decrease in the Table 2 Overview of studies on the use of passive acoustic monitoring for smart feed management in shrimp farming…”

Section: Passive Acoustic Monitoringmentioning

confidence: 99%

Monitoring methods of feeding behaviour to answer key questions in penaeid shrimp feeding

Tailly

Keitel

Owen

et al. 2021

Reviews in Aquaculture

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The penaeid shrimp farming industry is a fast-growing sector which continues to suffer from significant feeding inefficiencies. Shrimp are slow to feed on pellets, with consumption dependent on a wide range of environmental and physiological parameters. Feed management on farms remains mainly based on feeding trays which can be difficult to observe and often result in overfeeding. While our understanding of shrimp feeding behaviour is beginning to improve under laboratory conditions, much less is known about shrimp behaviour in production ponds. Consequently, there is a growing interest within the industry to improve observations of shrimp feeding behaviour in situ, although this can be difficult due to high water turbidity and the benthic nature of shrimp. This review identifies key questions that remain unanswered in relation to shrimp feeding behaviour under commercial aquaculture conditions, and considers how they could be addressed using state-of-the-art applications based on three technologies commonly used in other areas of aquaculture. The use of passive acoustics, computer vision and telemetry are highlighted, alongside their potential to help farmers achieve better feeding efficiencies and sustainability as well as to help understand shrimp feeding behaviour in relation to various biotic and abiotic parameters.

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Effects of Pelleted and Extruded Diets of Different Protein Levels on Growth, Digestive Enzyme Activity, Antioxidant Capacity, Nonspecific Immunity, and Ammonia‐N Stress Tolerance of Postlarval Pacific White Shrimp

2022

N American J Aquac

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The present study was conducted to evaluate the effects of pelleted and extruded diets of different protein levels on the growth performance, digestive enzyme activity, antioxidant capacity, nonspecific immunity, and ammonia‐N stress tolerance of postlarval Pacific white shrimp Litopenaeus vannamei. The shrimp were fed six diets, including extruded diets with dietary 41% protein (E41), 43% protein (E43), and 46% protein (E46) and pelleted diets with dietary 41% protein (P41), 43% protein (P43), and 46% protein (P46), for 60 d. The Pacific white shrimp that consumed diets with 43% and 46% protein had significantly higher final body weight, specific growth rate, and protease activity than those that consumed diets with 41% protein regardless of processing methods. The shrimp that consumed the extruded diets showed significantly higher final body weight, specific growth rate, and protease activity than those that consumed the pelleted diets when 41% and 43% protein were supplemented in the diets. The shrimp that consumed the extruded diets had significantly higher alpha‐amylase activity in the hepatopancreas than those that consumed the pelleted diets regardless of dietary protein levels. The extruded diet and dietary 43% and 46% protein showed higher activities of antioxidant enzymes, nonspecific immunity‐related indices, and acute ammonia‐N stress resistance when compared with the pelleted diets and dietary 41% protein, respectively. These results suggest that dietary 43% and 46% protein can promote the growth performance and enhance the digestive and antioxidant capacities, nonspecific immunity, and ammonia‐N resistance of Pacific white shrimp and that the extrusion process is a better method for promoting the growth performance and enhancing the digestive capacity, activities of antioxidant enzymes, nonspecific immunity, and ammonia‐N resistance of Pacific white shrimp.

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Acoustic activity of Litopenaeus vannamei fed pelleted and extruded diets

Cited by 24 publications

References 30 publications

Sound emission ofMacrobrachium rosenbergiiduring feeding activity

Sound emission ofMacrobrachium rosenbergiiduring feeding activity

Monitoring methods of feeding behaviour to answer key questions in penaeid shrimp feeding

Effects of Pelleted and Extruded Diets of Different Protein Levels on Growth, Digestive Enzyme Activity, Antioxidant Capacity, Nonspecific Immunity, and Ammonia‐N Stress Tolerance of Postlarval Pacific White Shrimp

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