Cricket Farming: A Sustainable Solution for Food Security?
"Exploring the potential of cricket farming in Kenya's high-altitude regions for nutrition and economic growth."
For many years, communities in Kenya have embraced insect consumption. Traditionally, insects were gathered from the wild, particularly from forests. However, this practice is steadily evolving, with a growing number of people now farming specific insect species in their homes and on farms. This shift is driven by a rising global interest in entomophagy – the practice of eating insects – with insects increasingly appearing on restaurant menus and in home cooking across the globe.
In Kenya, the house cricket, scientifically known as Acheta domesticus, stands out as the most commonly farmed insect. This humble cricket is a nutritional powerhouse, packed with essential macro and micronutrients. Studies have revealed that crickets boast high levels of protein, fat, iron, and zinc, making them a valuable addition to a balanced diet. Interestingly, the age at which crickets are harvested can influence their nutritional content, underscoring the importance of optimizing farming practices.
Given their rich nutrient profile, crickets hold immense potential to address prevalent nutritional challenges in Kenya, including protein-energy malnutrition and micronutrient deficiencies. The successful implementation of cricket farming in Thailand serves as an inspiring example of how this practice can be scaled up to improve food security and livelihoods. Kenya has also witnessed success in introducing cricket farming in the warmer, lower-altitude regions of Western Kenya. Smallholder farmers in these areas are increasingly adopting cricket farming in their homesteads, and larger-scale farming initiatives are underway. Even in Thailand, cricket farming remains predominantly small-scale, catering to domestic consumption and providing income at the farm level and in local markets. A similar trend is emerging in Kenya, with most of the crickets produced being consumed at home, with some finding their way to local markets. There is a growing need to enhance production by expanding cricket farming to other regions of the country, particularly the higher-altitude areas.
Cricket Farming in High-Altitude Kenya: How Does It Work?
To successfully raise crickets, the farming environment should mimic their natural wild environment, and their feed should closely resemble their natural diet. The ideal composition of cricket feed depends on the cricket's growth stage and the availability of local feed sources. Crickets have thrived in warm climates, as seen in Western Kenya's Lake Victoria region and Thailand's Khon Kaen region. Efforts to farm crickets in Kenya's cooler, higher-altitude regions have been limited, partly due to a lack of insect consumption history and climatic differences, as low temperatures may hinder growth and productivity. Following successful introduction in the Lake Victoria regions, it is time to expand to other regions with different ecological conditions perceived to be harsh for cricket farming.
- Temperature and humidity were monitored using data loggers.
- Growth parameters were monitored over four lifecycles in 2016, with three batches produced per cycle.
- Cycle 1 occurred January-March, cycle 2 in April-June, cycle 3 in July-September, and cycle 4 in October-December.
- Egg incubation duration, hatch rate, mortality rate, causes of mortality, and weight gain were evaluated in each cycle.
- Hatch rate was determined by comparing total hatched eggs to unhatched eggs.
- Mortality cases were observed, and mortality rate was assessed by calculating the proportion of dead crickets to the initial number of nymphs in a cage, while the causes of mortality were investigated and recorded.
- Weight gain was assessed from four weeks of age.
The Future of Cricket Farming
Cricket farming in Kenya can be successfully adopted in higher altitude, cooler environments. There exists side streams and farm weeds that are acceptable to the crickets hence lowering production costs. The trends show that though the growth parameters maybe affected by the lower temperatures, the crickets attain optimum growth within expected age. The crickets also attain optimum protein and fat as the cricket age increases just like in lower altitude, warmer environments. Week ten is the best week to harvest crickets when the protein content is highest while fat content is also highest. Mass production can therefore be promoted in the higher altitude cooler areas in order to promote industrial exploitation of the crickets in combating food and nutrition insecurity.