Study compares carcass and meat traits in guinea fowl and pheasants

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A newly indexed 2026 paper in Animals reports measurable differences in carcass composition and meat quality between guinea fowl and common pheasants raised under the same experimental production conditions. The study, by Marcin Wegner, Dariusz Kokoszyński, Marek Kotowicz, and Monika Lubawińska, evaluated 16 male guinea fowl and 16 male common pheasants, all slaughtered at 13 weeks of age, and found that the two species diverged significantly across multiple carcass and meat-quality parameters. (agris.fao.org)

The headline finding was straightforward: guinea fowl were heavier and yielded heavier carcasses, with higher carcass yield and greater absolute weights of meat, fat, and bone. Pheasants, though, delivered a higher proportion of breast muscle, while guinea fowl showed relatively more leg muscle, wings, and skin with subcutaneous fat. That pattern suggests different production strengths depending on whether a system values overall carcass yield, cut distribution, or lean breast yield. (agris.fao.org)

The paper lands in a broader body of work from the same research network examining carcass and meat traits in non-chicken poultry species. A 2024 Poultry Science research note from overlapping authors found that, within guinea fowl, breast and leg muscles differ in protein, fat, collagen, color, pH, and texture traits, while sex had more limited effects on most measured meat-quality features. Meanwhile, a 2024 Animals study on farmed common pheasants reported that slaughter age and sex affect carcass traits, meat quality, and bone characteristics, reinforcing that species comparisons need to be interpreted alongside age, sex, and management conditions. (pubmed.ncbi.nlm.nih.gov)

That context matters because the new comparison is relatively small and narrow: only 32 birds, only males, and only one slaughter age. Even so, it helps fill a practical evidence gap for producers and veterinarians who work with game birds or specialty poultry, where reference data are thinner than they are for broilers or turkeys. Previous work in guinea fowl has also shown that feeding program changes may have limited impact on some carcass and meat-quality outcomes, suggesting species-level biology can remain a strong driver of final product traits. A similar signal is showing up in other alternative poultry research: a recent Animals multi-omics study in meat pigeons found that breed had a much stronger effect than plumage color on slaughter performance, water-holding capacity, collagen content, fatty-acid and free-amino-acid composition, and flavor-related metabolites. In that study, white- and gray-feathered birds within the same Shiqi pigeon breed showed no meaningful meat-quality differences, while breed comparisons produced far larger shifts in metabolites and gene expression, including flavor-linked markers such as glutathione, L-histidine, L-carnosine, and cytidine-5′-monophosphate. (agris.fao.org)

Industry reaction specific to this paper wasn’t readily available in the public domain at the time of review, but the surrounding literature points to a consistent theme: guinea fowl and pheasants should not be treated as interchangeable from a production or meat-quality standpoint. Prior MDPI work on guinea fowl noted that these birds are generally considered lean and nutritious, and that carcass and meat traits are shaped by variety, sex, rearing conditions, climate, and diet. Related pheasant studies likewise describe meaningful shifts in carcass composition and meat characteristics with age, sex, and feed interventions. The newer pigeon data sharpen that message by suggesting that underlying breed genetics may matter more than visible traits such as plumage color when producers or breeders are trying to predict meat quality and flavor. (mdpi.com)

Why it matters: For veterinary professionals, especially those advising mixed-species poultry operations, the study is a reminder that performance monitoring, nutrition programs, and post-slaughter expectations should be species-specific. If guinea fowl tend toward better overall carcass yield but pheasants toward a greater breast-muscle share under similar conditions, that has implications for ration formulation, growth assessment, welfare monitoring tied to body condition, and producer guidance for niche-market positioning. It also matters for interpreting research: outcomes in one game bird species may not generalize well to another, even when husbandry looks similar. And as the pigeon work suggests, even within alternative poultry categories, genetic background may be more informative than outward appearance when assessing likely meat-quality outcomes. (agris.fao.org)

The paper is also relevant to the growing interest in alternative poultry species as producers look for differentiated products and resilient small-scale production models. Guinea fowl have been described in prior literature as adaptable and popular among small-scale farmers, with acceptable slaughter performance and distinctive meat characteristics. For veterinarians supporting those systems, better comparative data can help anchor decisions around rearing goals, client expectations, and realistic benchmarks for carcass quality. The broader alternative-poultry literature is increasingly moving in the same direction, using tools such as metabolomics and transcriptomics to identify the biological drivers of flavor and quality that could eventually inform breeding and selection decisions. (aab.copernicus.org)

What to watch: The next important step will be validation in larger, more diverse cohorts, especially studies that include females, multiple slaughter ages, and commercial rather than purely experimental rearing conditions, to determine how robust these species differences are in practice. It will also be worth watching for more work that teases apart species or breed effects from visible characteristics, since recent pigeon data suggest appearance-based assumptions may miss the genetics that actually drive meat quality and flavor. (agris.fao.org)