Temperature-dependence of life history in an edible cricket: Implications for optimising mass-rearing
Optimisation of life history and organismal performance underlies success in insect mass-rearing. Rearing schedules, resource use and production yield depend on many aspects of insect fitness and performance within and across generations, such as growth, development, longevity, and fecundity, which...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-01-01
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| Series: | Current Research in Insect Science |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666515825000046 |
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| author | Jacinta D. Kong Émile Vadboncoeur Susan M. Bertram Heath A. MacMillan |
| author_facet | Jacinta D. Kong Émile Vadboncoeur Susan M. Bertram Heath A. MacMillan |
| author_sort | Jacinta D. Kong |
| collection | DOAJ |
| description | Optimisation of life history and organismal performance underlies success in insect mass-rearing. Rearing schedules, resource use and production yield depend on many aspects of insect fitness and performance within and across generations, such as growth, development, longevity, and fecundity, which are all temperature dependent. Despite this general understanding, we often lack species-specific information needed to make informed decisions about manipulating rearing temperatures to optimise insect growth and development. Here, we characterise the effects of rearing temperature on nymph to adult development and lifespan (20 – 38 °C), and reproductive output (30 – 38 °C) in a farmed cricket (Gryllodes sigillatus). Crickets grew larger and reached adulthood sooner at higher developmental temperatures at the expense of longevity. Reproductive output was similar across a range of temperatures but decreased at 38 °C. Therefore, while temperature control is necessary to maximise production rates, temperature is unlikely to affect production yield in a fixed harvest cycle provided it is maintained within the narrow range enabling both fast growth and stable reproduction (32 – 36 °C). Our study provides a fundamental basis for further optimisation of insect rearing operations and a deeper understanding of the thermal biology of this commonly farmed species. |
| format | Article |
| id | doaj-art-ed8a211a0ada4dc88fd2e66cf7619692 |
| institution | Kabale University |
| issn | 2666-5158 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Current Research in Insect Science |
| spelling | doaj-art-ed8a211a0ada4dc88fd2e66cf76196922025-08-20T03:30:48ZengElsevierCurrent Research in Insect Science2666-51582025-01-01710010910.1016/j.cris.2025.100109Temperature-dependence of life history in an edible cricket: Implications for optimising mass-rearingJacinta D. Kong0Émile Vadboncoeur1Susan M. Bertram2Heath A. MacMillan3Corresponding author.; Department of Biology, Carleton University, Ottawa, Ontario K1S 5B6, CanadaDepartment of Biology, Carleton University, Ottawa, Ontario K1S 5B6, CanadaDepartment of Biology, Carleton University, Ottawa, Ontario K1S 5B6, CanadaDepartment of Biology, Carleton University, Ottawa, Ontario K1S 5B6, CanadaOptimisation of life history and organismal performance underlies success in insect mass-rearing. Rearing schedules, resource use and production yield depend on many aspects of insect fitness and performance within and across generations, such as growth, development, longevity, and fecundity, which are all temperature dependent. Despite this general understanding, we often lack species-specific information needed to make informed decisions about manipulating rearing temperatures to optimise insect growth and development. Here, we characterise the effects of rearing temperature on nymph to adult development and lifespan (20 – 38 °C), and reproductive output (30 – 38 °C) in a farmed cricket (Gryllodes sigillatus). Crickets grew larger and reached adulthood sooner at higher developmental temperatures at the expense of longevity. Reproductive output was similar across a range of temperatures but decreased at 38 °C. Therefore, while temperature control is necessary to maximise production rates, temperature is unlikely to affect production yield in a fixed harvest cycle provided it is maintained within the narrow range enabling both fast growth and stable reproduction (32 – 36 °C). Our study provides a fundamental basis for further optimisation of insect rearing operations and a deeper understanding of the thermal biology of this commonly farmed species.http://www.sciencedirect.com/science/article/pii/S2666515825000046Insect rearingInsect agricultureThermal performanceAlternative protein production |
| spellingShingle | Jacinta D. Kong Émile Vadboncoeur Susan M. Bertram Heath A. MacMillan Temperature-dependence of life history in an edible cricket: Implications for optimising mass-rearing Current Research in Insect Science Insect rearing Insect agriculture Thermal performance Alternative protein production |
| title | Temperature-dependence of life history in an edible cricket: Implications for optimising mass-rearing |
| title_full | Temperature-dependence of life history in an edible cricket: Implications for optimising mass-rearing |
| title_fullStr | Temperature-dependence of life history in an edible cricket: Implications for optimising mass-rearing |
| title_full_unstemmed | Temperature-dependence of life history in an edible cricket: Implications for optimising mass-rearing |
| title_short | Temperature-dependence of life history in an edible cricket: Implications for optimising mass-rearing |
| title_sort | temperature dependence of life history in an edible cricket implications for optimising mass rearing |
| topic | Insect rearing Insect agriculture Thermal performance Alternative protein production |
| url | http://www.sciencedirect.com/science/article/pii/S2666515825000046 |
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