Mortality, metabolic rate, and oviposition of Gryllus (Gryllus) assimilis (Fabricius, 1775) (Orthoptera: Gryllidae) females under constant and fluctuating warm temperatures

Filho, Boaventura Lobo Centeno; Limberger, Guilherme Martins; Esteves, Kathellen Pintado; Fonseca, Duane Barros da; Maciel, Fábio Everton

doi:10.1016/j.jtherbio.2023.103574

Cited by 1 publication

(3 citation statements)

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“…There is evidence that limiting temporal fluctuations in temperature can provide a less stressful thermal rearing environment. A recent study found significantly ele-Journal of Insects as Food and Feed 0 (2024) 1-59 vated mortality rates in adult male G. assimilis housed in environments fluctuating from 27 to 34 °C (8.9% mortality after 4 days) compared to males of the same species kept at constant temperatures of either 27 °C (0% mortality) or 34°C (1.43% mortality) (Centeno Filho et al, 2022; females were less affected: Centeno Filho et al, 2023). These data suggest open rearing facilities in areas with highly variable climates, across hours or days, could be particularly stressful for G. assimilis.…”

Section: Concern 8 Lack Of Climate Control In Semi-open Rearing Facil...mentioning

confidence: 99%

“…Far cooler temperatures in G. assimilis appear to be optimal for oviposition (Figure 3). Recent work showed the greatest numbers of eggs laid per female between 25 and 29 °C, with oviposition environments as cold as 20 °C or as warm as 34 °C yielding significant declines in oviposition (Centeno Filho et al, 2023;Hermansa et al, 2022).…”

Section: Concern 8 Lack Of Climate Control In Semi-open Rearing Facil...mentioning

confidence: 99%

“…(A) Effects of temperature on rearing mortality (Ghouri and McFarlane, 1958), maturation time (Ghouri and McFarlane, 1958), egg hatching success (McFarlane et al, 1959), mobility (Morales-Ramos et al, 2018), and tactile sensory transmission (Morrissey and Edwards, 1979) in A. domesticus. (B) Effects of temperature on 4-day adult mortality (Centeno Filho et al, 2022), mobility (Centeno Filho et al, 2022, and oviposition *shown as % relative to highest study values(Centeno Filho et al, 2023;Hermansa et al, 2022) in G. assimilis. (C) Effects of temperature on rearing mortality(Ghouri and McFarlane, 1958), time to maturation(Ghouri and McFarlane, 1958), egg hatching success(McFarlane et al, 1959), and egg incubation time(McFarlane et al, 1959) in G. sigillatus.…”

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confidence: 99%

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Farmed cricket (Acheta domesticus, Gryllus assimilis, and Gryllodes sigillatus; Orthoptera) welfare considerations: recommendations for improving global practice

Rowe,

Robles López,

Robinson

et al. 2024

J. Insects Food Feed

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Orthoptera, such as crickets, is currently the most reared group of hemimetabolous insects in the insects as food and feed industry, with over 370 billion individuals slaughtered and/or sold live annually. The most-farmed cricket species is Acheta domesticus, however there is growing interest in farming at least two additional species, Gryllus assimilis and Gryllodes sigillatus. Crickets are largely being explored for use as human protein, and exotic animal or pet feed – as well as, to a lesser extent, livestock and fish feed. Insect welfare is of growing interest to consumers who are considering incorporating insect protein into their diets, as well as to many producers. However, no studies have considered the welfare concerns of farmed crickets under current industry conditions. Using an established model for assessing farmed insect welfare, we assess potential welfare concerns for the three most-farmed cricket species, including: interspecific interactions (including parasites and pathogens), temperature and humidity, light cycles, electrical shocks, atmospheric gas levels, nutrition and hydration, environmental pollutants, injury and crowding, density, handling-associated stress, genetics and selection, enrichments, transport-related challenges, and stunning, anesthesia, and slaughter/depopulation methods. From our assessment of these factors, we make recommendations for improving cricket welfare now and as the industry continues to grow; in addition, we identify research directions that will improve our understanding of cricket welfare. We conclude by broadly discussing the importance of addressing the welfare challenges presented by the insects as food and feed industry for the animals and for the growth and health of the industry itself.

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Section: Concern 8 Lack Of Climate Control In Semi-open Rearing Facil...mentioning

confidence: 99%

Section: Concern 8 Lack Of Climate Control In Semi-open Rearing Facil...mentioning

confidence: 99%

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confidence: 99%

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Farmed cricket (Acheta domesticus, Gryllus assimilis, and Gryllodes sigillatus; Orthoptera) welfare considerations: recommendations for improving global practice

Rowe,

Robles López,

Robinson

et al. 2024

J. Insects Food Feed

View full text Add to dashboard Cite

show abstract

Mortality, metabolic rate, and oviposition of Gryllus (Gryllus) assimilis (Fabricius, 1775) (Orthoptera: Gryllidae) females under constant and fluctuating warm temperatures

Cited by 1 publication

References 41 publications

Farmed cricket (Acheta domesticus, Gryllus assimilis, and Gryllodes sigillatus; Orthoptera) welfare considerations: recommendations for improving global practice

Farmed cricket (Acheta domesticus, Gryllus assimilis, and Gryllodes sigillatus; Orthoptera) welfare considerations: recommendations for improving global practice

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