Effects of Temperature and Density on House Cricket Survival and Growth and on the Prevalence of Acheta Domesticus Densovirus
The house cricket, <i>Acheta domesticus</i>, is a commonly reared insect for food and feed purposes. In 1977, a report described a colony collapse, which was caused by the single-stranded DNA virus Acheta domesticus densovirus (AdDV). Currently, there are no confirmed <i>A. domesti...
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| Format: | Article |
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MDPI AG
2023-06-01
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| Series: | Insects |
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| Online Access: | https://www.mdpi.com/2075-4450/14/7/588 |
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| author | Jozsef Takacs Astrid Bryon Annette B. Jensen Joop J. A. van Loon Vera I. D. Ros |
| author_facet | Jozsef Takacs Astrid Bryon Annette B. Jensen Joop J. A. van Loon Vera I. D. Ros |
| author_sort | Jozsef Takacs |
| collection | DOAJ |
| description | The house cricket, <i>Acheta domesticus</i>, is a commonly reared insect for food and feed purposes. In 1977, a report described a colony collapse, which was caused by the single-stranded DNA virus Acheta domesticus densovirus (AdDV). Currently, there are no confirmed <i>A. domesticus</i> colonies free of AdDV, and viral disease outbreaks are a continuous threat to <i>A. domesticus</i> mass rearing. Correlations between cricket rearing density or temperature and AdDV abundance have been hypothesized, but experimental evidence is lacking. Optimised rearing conditions, including temperature and density, are key to cost-effective cricket production. In this study, house crickets were subjected to different combinations of rearing density (10, 20, 40 crickets per box) and temperature (25, 30, 35 °C) to study the effect on cricket survival, biomass, and AdDV abundance. Rearing temperature affected had a minor effect on survival, which ranged between 80 and 83%. Total cricket biomass increased with higher temperatures and higher densities. Viral abundance in crickets at the end of the rearing period was variable; however, high rearing density seemed to result in higher AdDV abundance. At 35 °C, a temperature considered suboptimal for house cricket production, viral abundance tended to be lower than at 25 or 30 °C. |
| first_indexed | 2024-03-11T00:59:02Z |
| format | Article |
| id | doaj.art-bc700003b7014a3fbf6e5a891c0bd279 |
| institution | Directory Open Access Journal |
| issn | 2075-4450 |
| language | English |
| last_indexed | 2024-03-11T00:59:02Z |
| publishDate | 2023-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Insects |
| spelling | doaj.art-bc700003b7014a3fbf6e5a891c0bd2792023-11-18T19:48:36ZengMDPI AGInsects2075-44502023-06-0114758810.3390/insects14070588Effects of Temperature and Density on House Cricket Survival and Growth and on the Prevalence of Acheta Domesticus DensovirusJozsef Takacs0Astrid Bryon1Annette B. Jensen2Joop J. A. van Loon3Vera I. D. Ros4Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, DK-1871 Copenhagen, DenmarkLaboratory of Virology, Wageningen University and Research, Droevendaalsesteeg 1, 6708 PB Wageningen, The NetherlandsDepartment of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, DK-1871 Copenhagen, DenmarkLaboratory of Entomology, Wageningen University and Research, Droevendaalsesteeg 1, 6708 PB Wageningen, The NetherlandsLaboratory of Virology, Wageningen University and Research, Droevendaalsesteeg 1, 6708 PB Wageningen, The NetherlandsThe house cricket, <i>Acheta domesticus</i>, is a commonly reared insect for food and feed purposes. In 1977, a report described a colony collapse, which was caused by the single-stranded DNA virus Acheta domesticus densovirus (AdDV). Currently, there are no confirmed <i>A. domesticus</i> colonies free of AdDV, and viral disease outbreaks are a continuous threat to <i>A. domesticus</i> mass rearing. Correlations between cricket rearing density or temperature and AdDV abundance have been hypothesized, but experimental evidence is lacking. Optimised rearing conditions, including temperature and density, are key to cost-effective cricket production. In this study, house crickets were subjected to different combinations of rearing density (10, 20, 40 crickets per box) and temperature (25, 30, 35 °C) to study the effect on cricket survival, biomass, and AdDV abundance. Rearing temperature affected had a minor effect on survival, which ranged between 80 and 83%. Total cricket biomass increased with higher temperatures and higher densities. Viral abundance in crickets at the end of the rearing period was variable; however, high rearing density seemed to result in higher AdDV abundance. At 35 °C, a temperature considered suboptimal for house cricket production, viral abundance tended to be lower than at 25 or 30 °C.https://www.mdpi.com/2075-4450/14/7/588<i>Acheta domesticus</i>house cricketinsect productioninsects as food and feedcricket virusesentomopathogenic viruses |
| spellingShingle | Jozsef Takacs Astrid Bryon Annette B. Jensen Joop J. A. van Loon Vera I. D. Ros Effects of Temperature and Density on House Cricket Survival and Growth and on the Prevalence of Acheta Domesticus Densovirus Insects <i>Acheta domesticus</i> house cricket insect production insects as food and feed cricket viruses entomopathogenic viruses |
| title | Effects of Temperature and Density on House Cricket Survival and Growth and on the Prevalence of Acheta Domesticus Densovirus |
| title_full | Effects of Temperature and Density on House Cricket Survival and Growth and on the Prevalence of Acheta Domesticus Densovirus |
| title_fullStr | Effects of Temperature and Density on House Cricket Survival and Growth and on the Prevalence of Acheta Domesticus Densovirus |
| title_full_unstemmed | Effects of Temperature and Density on House Cricket Survival and Growth and on the Prevalence of Acheta Domesticus Densovirus |
| title_short | Effects of Temperature and Density on House Cricket Survival and Growth and on the Prevalence of Acheta Domesticus Densovirus |
| title_sort | effects of temperature and density on house cricket survival and growth and on the prevalence of acheta domesticus densovirus |
| topic | <i>Acheta domesticus</i> house cricket insect production insects as food and feed cricket viruses entomopathogenic viruses |
| url | https://www.mdpi.com/2075-4450/14/7/588 |
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