ArticleLipids2005
Effect of abomasal infusions of geometric isomers of 10,12 conjugated linoleic acid on milk fat synthesis in dairy cows.
Article in Lipids, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
6 citing papers in PubMed, 93 citations in OpenAlex.
- Trial
- Comparison of milk and grass composition from grazing Irish dairy herds with and without milk fat depression.Irish veterinary journal · 2023Article
- The Processes of Nutrition and Metabolism Affecting the Biosynthesis of Milk Components and Vitality of Cows with High- and Low-Fat Milk.Animals : an open access journal from MDPI · 2022Article
- Article
- Effect of ruminal administration of soy sauce oil on rumen fermentation, milk production and blood parameters in dairy cows.Asian-Australasian journal of animal sciences · 2020Article
- t10,c12-18:2-induced milk fat depression is less pronounced in cows fed high-concentrate diets.Lipids · 2010Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The trans-10,cis-12 isomer of conjugated linoleic acid (CLA) decreases TAG accumulation in 3T3-L1 adipocytes, reduces lipid accretion in growing animals, and inhibits milk fat synthesis in lactating mammals. However, there is evidence to suggest that other FA may also exert antilipogenic effects. In the current experiment, the effects of geometric isomers of 10,12 CLA on milk fat synthesis were examined using four Holstein-British Friesian cows in a 4 x 4 Latin Square experiment with 14-d periods. Treatments consisted of abomasal infusions of skim milk, or skim milk containing trans-10,cis-12 CLA (T1), trans-10,trans-12 CLA (T2), or a mixture of predominantly 10,12 isomers containing (g/l00 g) trans-10,cis-12 (35.0), cis-10,trans-12 (23.2), trans-10,trans-12 (14.9), and cis-10,cis-12 (5.1). CLA supplements were prepared from purified ethyl linoleate and infused as nonesterified FA. Infusions were conducted over a 4-d period with a 10-d interval between treatments and targeted to deliver 4.5 g/d of 10,12 CLA isomers. Compared with the control, trans-10, trans-12 CLA had no effect (P> 0.05) on milk fat yield, whereas treatments T1 and T3 depressed (P < 0.05) milk fat content (19.8 and 22.9%, respectively) and decreased milk fat output (20.8 and 21.3%, respectively). Comparable reductions in milk fat synthesis to 4.14 and 1.80 g trans-10,cis-12/d supplied by treatments T1 and T3 indicate that other 10,12 geometric isomers of CLA have the potential to exert antilipogenic effects. The relative abundance of cis-10,trans-12 CLA in treatment T3 and the low transfer efficiency of this isomer into milk suggest that cis-10,trans-12 CLA was the active component..
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