scholarly journals Effect of dietary proportion of grass silage on milk fat with emphasis on odd- and branched-chain fatty acids in dairy cows

2013 ◽  
Vol 96 (1) ◽  
pp. 390-397 ◽  
Author(s):  
M. Patel ◽  
E. Wredle ◽  
J. Bertilsson
Keyword(s):  
Fatty Acids ◽  
Dairy Cows ◽  
Milk Fat ◽  
Grass Silage ◽  
Branched Chain Fatty Acids ◽  
Branched Chain ◽  
Chain Fatty Acids

scholarly journals Relations of Ruminal Fermentation Parameters and Microbial Matters to Odd- and Branched-Chain Fatty Acids in Rumen Fluid of Dairy Cows at Different Milk Stages

Animals ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 1019 ◽  
Author(s):  
Keyuan Liu ◽  
Yang Li ◽  
Guobin Luo ◽  
Hangshu Xin ◽  
Yonggen Zhang ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Dairy Cows ◽  
Nitrogen Flow ◽  
Ruminal Fermentation ◽  
Bacterial Populations ◽  
Microbial Nitrogen ◽  
Branched Chain Fatty Acids ◽  
Branched Chain ◽  
Fermentation Parameters ◽  
Chain Fatty Acids

The purpose of this research was to evaluate whether relationships exist between odd- and branched-chain fatty acids (OBCFAs) originating from milk fat and the corresponding data of ruminal fermentation parameters, microbial populations, and base contents that were used to mark microbial protein in rumen. Nine lactating Holstein dairy cows with similar body weights and parity were selected in this study, and the samples of rumen and milk were collected at the early, middle, and late stages, respectively. The rumen and milk samples were collected over three consecutive days from each cow, and the ruminal and milk OBCFA profiles, ruminal fermentation parameters, bacterial populations, and base contents were measured. The results showed that the concentrations of OBCFAs, with the exception of C11:0 and C15:0, were significantly different between milk and rumen (p < 0.05). The concentrations of anteiso-fatty acids in milk were higher than those in rumen, and the contents of linear odd-chain fatty acids were higher than those of branched-chain fatty acids in both milk and rumen. Significant relationships that existed between the concentrations of C11:0, iso-C15:0, anteiso-C15:0, C15:0, and anteiso-C17:0 in rumen and milk (p < 0.05). The total OBCFA content in milk was positively related to the acetate molar proportion but negatively correlated with isoacid contents (p < 0.05). The populations of Ruminococcus albus, R. flavefacients, and Eubacterium ruminantium were significantly related to milk C13:0 contents (p < 0.05). The adenine/N ratio was negatively related to milk OBCFA content (p < 0.05) but positively associated with the iso-C15:0/iso-C17:0 ratio (p < 0.05). Milk OBCFAs were significantly correlated with ruminal fermentation parameters, ruminal bacterial populations, and base contents. Milk OBCFAs had the potential to predict microbial nitrogen flow, and the prediction equations for ruminal microbial nitrogen flow were established for OBCFAs in dairy milk.

The effect of branched chain fatty acids and fishmeal on voluntary intake by young cattle offered grass silage

1986 ◽  
Vol 1986 ◽  
pp. 134-134
Author(s):  
M. Gill ◽  
P.J. Buttery ◽  
P. England ◽  
J.M. Dawson ◽  
D.E. Beever
Keyword(s):  
Fatty Acids ◽  
Positive Response ◽  
Grass Silage ◽  
Branched Chain Fatty Acids ◽  
Young Cattle ◽  
Voluntary Intake ◽  
Branched Chain ◽  
Chain Fatty Acids

Fishmeal addition to grass silage generally improves growth in young cattle, but the response in terms of silage intake is more variable. Where there is a positive response in intake, this would appear to be partially attributabl to a ruminal effect whereby fishmeal increases rumen digestion. Degradation of fishmeal in the rumen may lead to the production of branched chain volatile acids (BCVA) which have been shown to increase fibre digestion (Gorosito et al. 1985). The experiment reported here was undertaken to compare the effect of BCVA and fishmeal supplementation on silage intake.

scholarly journals Effect of lipid supplementation on milk odd- and branched-chain fatty acids in dairy cows

2016 ◽  
Vol 99 (8) ◽  
pp. 6311-6323 ◽  
Author(s):  
E. Baumann ◽  
P.Y. Chouinard ◽  
Y. Lebeuf ◽  
D.E. Rico ◽  
R. Gervais
Keyword(s):  
Fatty Acids ◽  
Dairy Cows ◽  
Branched Chain Fatty Acids ◽  
Lipid Supplementation ◽  
Branched Chain ◽  
Chain Fatty Acids

scholarly journals Milk Odd and Branched Chain Fatty Acids in Dairy Cows: A Review on Dietary Factors and its Consequences on Human Health

Animals ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 3210
Author(s):  
Sidi Ka Amar Abdoul-Aziz ◽  
Yangdong Zhang ◽  
Jiaqi Wang
Keyword(s):  
Fatty Acids ◽  
Dairy Cows ◽  
Primary Source ◽  
Dietary Factors ◽  
The Body ◽  
Cow Milk ◽  
Milk Fatty Acids ◽  
Branched Chain Fatty Acids ◽  
Branched Chain ◽  
Chain Fatty Acids

This review highlights the importance of odd and branched chain fatty acids (OBCFAs) and dietary factors that may affect the content of milk OBCFAs in dairy cows. Historically, OBCFAs in cow milk had little significance due to their low concentrations compared to other milk fatty acids (FAs). The primary source of OBCFAs is ruminal bacteria. In general, FAs and OBCFAs profile in milk is mainly affected by dietary FAs and FAs metabolism in the rumen. Additionally, lipid mobilization in the body and FAs metabolism in mammary glands affect the milk OBCFAs profile. In cows, supplementation with fat rich in linoleic acid and α-linolenic acid decrease milk OBCFAs content, whereas supplementation with marine algae or fish oil increase milk OBCFAs content. Feeding more forage rather than concentrate increases the yield of some OBCFAs in milk. A high grass silage rate in the diet may increase milk total OBCFAs. In contrast to saturated FAs, OBCFAs have beneficial effects on cardiovascular diseases and type II diabetes. Furthermore, OBCFAs may have anti-cancer properties and prevent Alzheimer’s disease and metabolic syndrome.

scholarly journals Apparent Recovery of Duodenal Odd- and Branched-Chain Fatty Acids in Milk of Dairy Cows

2007 ◽  
Vol 90 (4) ◽  
pp. 1775-1780 ◽  
Author(s):  
R.J. Dewhurst ◽  
J.M. Moorby ◽  
B. Vlaeminck ◽  
V. Fievez
Keyword(s):  
Fatty Acids ◽  
Dairy Cows ◽  
Branched Chain Fatty Acids ◽  
Branched Chain ◽  
Chain Fatty Acids

scholarly journals Short communication: Effects of diets containing supplemental fats on ruminal fermentation and milk odd- and branched-chain fatty acids in dairy cows

2018 ◽  
Vol 101 (7) ◽  
pp. 6133-6141 ◽  
Author(s):  
M. Vazirigohar ◽  
M. Dehghan-Banadaky ◽  
K. Rezayazdi ◽  
A. Nejati-Javaremi ◽  
H. Mirzaei-Alamouti ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Dairy Cows ◽  
Short Communication ◽  
Ruminal Fermentation ◽  
Communication Effects ◽  
Branched Chain Fatty Acids ◽  
Branched Chain ◽  
Chain Fatty Acids
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