Study tests energy density targets for lactating Bactrian camels

A newly published Animals paper looks at a basic but poorly studied question in camel production: how much digestible energy should be built into diets for lactating Bactrian camels. In a 60-day feeding trial in southern Xinjiang, researchers assigned 24 mid-lactation camels to four diets with digestible energy levels of 12.25, 12.49, 12.74, and 12.99 MJ/kg, then tracked milk performance, rumen fermentation, and rumen microbiota. (genelibs.com)

That matters because camel nutrition still lags far behind dairy cattle in evidence depth. Bactrian camels are a key milk-producing species in parts of China and other arid regions, but published work has repeatedly noted that milk composition and productivity vary with breed, season, lactation stage, feed, and management. Reviews also point out that camel feeding systems are changing as production becomes more intensive, creating more demand for species-specific ration data rather than cattle-based extrapolation. (pmc.ncbi.nlm.nih.gov)

The new study focused on digestible energy, a logical target because rumen fermentation is central to how camelids convert fibrous feeds into usable energy. Prior camel and ruminant research has shown that fermentation end products such as volatile fatty acids are major energy sources for the host, while dietary shifts can alter both microbial composition and fermentation efficiency. In camelids, that interaction may be even more consequential because their foregut fermentation system, retention time, and microbial ecology differ from those of cattle and sheep. (pmc.ncbi.nlm.nih.gov)

Although the full article text was not accessible through this tool, the available abstract indicates that the investigators were specifically testing whether incremental increases in digestible energy would affect lactation performance and reshape the rumen environment. That framing aligns with broader literature showing that higher-energy diets can improve nutrient digestibility and production responses, but may also shift microbial populations and, if pushed too far, increase the risk of acidotic conditions in foregut fermenters. A recent camel-focused review similarly notes that high-concentrate feeding can increase volatile fatty acid production while raising rumen acidosis risk. (genelibs.com)

The study also lands in a growing body of microbiome work in camels. Previous sequencing studies have found that Bactrian camels harbor distinct gastrointestinal communities shaped by their adaptation to sparse, salty, and fibrous diets. Researchers have described dominant roles for Firmicutes, Bacteroidetes, and other taxa involved in polysaccharide degradation and fermentation, while metagenomic work has linked microbiome structure to energy utilization efficiency in camel populations. That gives added weight to nutrition studies that pair production endpoints with microbiota readouts, rather than looking only at milk yield or composition. (pmc.ncbi.nlm.nih.gov)

Expert commentary on this exact paper was limited in public sources, but the broader industry and academic view is consistent: camel milk production is gaining commercial attention, and feeding strategy is one of the main controllable levers. Reviews of Bactrian camel milk and camel dairy systems describe rising interest in milk quality, value-added products, and intensive management, all of which depend on better nutritional precision during lactation. (pmc.ncbi.nlm.nih.gov)

Why it matters: For veterinary professionals, this is less about a single ration number and more about a direction of travel. Camel practice increasingly needs evidence that connects diet formulation to production, rumen health, and microbial stability in a species with unique digestive physiology. If moderate increases in digestible energy can support milk performance without compromising fermentation balance, that could inform advisory work on transition to TMR-based systems, concentrate inclusion, and monitoring for subclinical digestive upset. It also underlines that cattle nutrition assumptions may not cleanly transfer to camels. (mdpi.com)

What to watch: The next step is validation in larger commercial groups, with clearer reporting on milk yield, milk components, feed efficiency, and any signs of rumen stress across energy levels. It would also be useful to see whether the microbiota changes observed here persist across seasons, forage bases, and stages of lactation in southern Xinjiang and other Bactrian camel production regions. (doi.org)