DHA content in milk and biohydrogenation pathway in rumen: a review
| Autor: | Shengguo Zhao, Guoxin Huang, Qingbiao Xu, Jiaqi Wang, Xueyin Qu, Yangdong Zhang, Kaizhen Liu, Jing Yu, Nan Zheng |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Veterinary Medicine
genetic structures α-linolenic acid Biohydrogenation Biochemistry General Biochemistry Genetics and Molecular Biology 03 medical and health sciences Rumen Nutrient Food science Health and development Agricultural Science Nutrition fat-1 gene 030304 developmental biology 0303 health sciences Chemistry General Neuroscience Dietary intake Dairy cows 0402 animal and dairy science food and beverages 04 agricultural and veterinary sciences General Medicine Food Science and Technology 040201 dairy & animal science Milk supply Docosahexaenoic acid Blood circulation lipids (amino acids peptides and proteins) General Agricultural and Biological Sciences Ruminal microorganism |
| Zdroj: | PeerJ |
| ISSN: | 2167-8359 |
| Popis: | 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:α-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. Thefat-1gene 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 thefat-1gene on DHA supply in dairy cows. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|