AI Article Synopsis
- Docosahexaenoic acid (DHA) is crucial for neural health and primarily comes from the diet of dairy cows, affecting milk DHA levels.
- Rumen biohydrogenation, a process in the cow's stomach, reduces DHA availability and complicates its incorporation into milk.
- More research is needed to understand the dietary influences on milk DHA, the biohydrogenation pathway, and the role of certain genes in DHA absorption in dairy cows.
Article Abstract
Docosahexaenoic acid (DHA) is an essential human nutrient that may promote neural health and development. DHA occurs naturally in milk in concentrations that are influenced by many factors, including the dietary intake of the cow and the rumen microbiome. We reviewed the literature of milk DHA content and the biohydrogenation pathway in rumen of dairy cows aim to enhance the DHA content. DHA in milk is mainly derived from two sources: -linolenic acid (ALA) occurring in the liver and consumed as part of the diet, and overall dietary intake. Rumen biohydrogenation, the lymphatic system, and blood circulation influence the movement of dietary intake of DHA into the milk supply. Rumen biohydrogenation reduces DHA in ruminal environmental and limits DHA incorporation into milk. The gene may increase DHA uptake into the body but this lacks experimental confirmation. Additional studies are needed to define the mechanisms by which different dietary sources of DHA are associated with variations of DHA in milk, the pathway of DHA biohydrogenation in the rumen, and the function of the gene on DHA supply in dairy cows.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7761261 | PMC |
| http://dx.doi.org/10.7717/peerj.10230 | DOI Listing |
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