Study tests house cricket meal as soybean substitute in rabbits

A newly published study in Animals examines whether a small dietary inclusion of house cricket (Acheta domesticus) meal can stand in for part of soybean meal in growing rabbits without compromising carcass traits or meat quality. Based on the journal abstract provided, the trial replaced 3% soybean meal with cricket meal in 24 weaned New Zealand White rabbits from 35 to 85 days of age, then assessed carcass characteristics, proximate composition, physical meat-quality traits, and fatty acid profile. The reported topline finding is measured rather than dramatic: meat quality appears broadly maintained, with changes showing up mainly in lipid composition, including a higher polyunsaturated fatty acid profile. (dottorati.unimi.it)

The paper lands in a research area that's still relatively thin for rabbits. Insect-derived feed ingredients have drawn sustained interest because they may reduce reliance on soybean meal and fit circular-economy narratives, but rabbit-specific evidence has lagged behind poultry and aquaculture. One of the more relevant prior studies, published in 2023, compared cricket and mealworm meals with soybean meal in fattening rabbits and found that growth and nitrogen output were not negatively affected, although digestibility coefficients were lower for the insect-meal diets than for soybean meal. That earlier work helped establish that A. domesticus is at least biologically plausible as a rabbit feed ingredient, while also underscoring that performance and digestibility don't always move in lockstep. (pubmed.ncbi.nlm.nih.gov)

There are also signs this latest study is part of a broader research program rather than a one-off experiment. University of Milan materials identify lead author Alda Quattrone as a PhD researcher studying the effects of cricket flour and seaweed on rabbit welfare, productive and reproductive performance, and meat quality. That context matters because it suggests more data may follow on health, reproduction, or welfare endpoints that weren't highlighted in the short publication summary. (dottorati.unimi.it)

Even without the full text in hand, the study's design points to a conservative test case: a low inclusion level, partial replacement rather than full substitution, and standard carcass and meat-quality endpoints. That's important because insect meals can introduce several formulation questions, including amino acid balance, chitin content, mineral load, oxidation behavior, and variability tied to rearing substrate and processing. Reviews of insect-based feed continue to frame those issues as central to scale-up, quality control, and safety assessment. (pubmed.ncbi.nlm.nih.gov)

Industry reaction specific to this paper wasn't readily visible in open web results, but the broader scientific direction is clear: insect proteins are being tested across species as alternative feed ingredients, and rabbit trials are gradually expanding from digestibility and growth into meat-quality endpoints. Recent rabbit studies with other alternative proteins, including black soldier fly larvae meal and silkworm pupae meal, have likewise reported that at least some insect-based substitutions can be made without obvious deterioration in meat quality, though results vary by species, inclusion rate, and diet formulation. (pubmed.ncbi.nlm.nih.gov)

Why it matters: For veterinarians, nutritionists, and technical teams supporting rabbit production, this study adds a practical piece to the decision tree around alternative proteins. The headline isn't just sustainability. It's whether a novel ingredient can be introduced without creating downstream problems in performance, carcass yield, meat quality, or product consistency. A low-level cricket meal substitution that preserves those outcomes could be useful, especially where feed-cost volatility, soybean sourcing, or sustainability targets are shaping formulation decisions. At the same time, the limited sample size and narrow inclusion level mean this should be read as an early formulation signal, not a practice-changing result. (pubmed.ncbi.nlm.nih.gov)

The fatty acid angle may be the most interesting part for professionals to follow. If cricket meal reliably shifts rabbit meat toward a more favorable polyunsaturated profile without hurting shelf life, sensory quality, or oxidative stability, that could open a more differentiated conversation about market value. But that also raises familiar questions: whether the effect is repeatable across batches, whether it depends on how the crickets were raised and processed, and whether higher inclusion rates would preserve the same balance. Research on rabbit meat quality more broadly continues to emphasize that nutritional improvements have to be weighed against stability, consumer acceptance, and commercial feasibility. (pubs.acs.org)

What to watch: Next, watch for the full article's tables and discussion, plus any follow-on trials that move beyond carcass and meat quality into gut health, reproduction, economics, regulatory acceptance, and larger production-scale validation. If those data hold up, cricket meal may become less of a novelty ingredient and more of a niche tool in rabbit diet formulation. (pubmed.ncbi.nlm.nih.gov)