scholarly journals Feeding Polyunsaturated Supplements to Grazing Dairy Cows Improve the Healthy Value of Milk Fatty Acids

2017 ◽  
Vol 08 (08) ◽  
pp. 759-782 ◽  
Author(s):  
Gerardo Antonio Gagliostro ◽  
Daniel Alberto Garciarena ◽  
María Alejandra Rodriguez ◽  
Liliana Elisabet Antonacci
Keyword(s):  
Fatty Acids ◽  
Dairy Cows ◽  
Milk Fatty Acids ◽  
Grazing Dairy Cows

Milk production and composition, and methane emissions from dairy cows fed lucerne hay with forage brassica or chicory

2016 ◽  
Vol 56 (3) ◽  
pp. 304 ◽  
Author(s):  
S. R. O. Williams ◽  
P. J. Moate ◽  
M. H. Deighton ◽  
M. C. Hannah ◽  
W. J. Wales ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Dairy Cows ◽  
Milk Production ◽  
Perennial Grass ◽  
Milk Fatty Acids ◽  
Ch4 Emissions ◽  
Holstein Friesian ◽  
Grazing Dairy Cows ◽  
Diet Type ◽  
Friesian Cows

Forage brassica and chicory crops provide an alternative to perennial grass pastures as a forage supply for grazing dairy cows during summer, but there is little information about their effects on milk production and methane (CH4) emissions. Thirty-two Holstein–Friesian cows were fed for 10 days on a diet of lucerne cubes (750 g/kg DM) and grain (250 g/kg DM) (CON) or diets in which forage brassica (410 g/kg DM, FBR) or reproductive-stage chicory (410 g/kg DM, RCH) were offered with lucerne cubes (340 g/kg DM) and grain (250 g/kg DM). Cows offered the FBR diet produced more energy-corrected milk (25.4 kg/day) than did cows offered the CON diet (22.7 kg/day, P = 0.001), even though DM intake was not different for cows between the two groups (20.6 kg/day on average). In contrast, cows offered the RCH diet produced less energy-corrected milk (19.3 kg/day) than did cows in the other two groups (P = 0.001), reflecting the lower DM intake by cows offered the RCH diet (17.7 kg/day, P < 0.01). Methane yield (g CH4/kg DMI) was lower (P < 0.01) on the CON (21.0) and FBR (20.5) diets than on the RCH diet (26.1). Methane intensity (g/kg energy-corrected milk) was different (P < 0.01) for all diets, with CON (19.4) being intermediate, FBR (17.3) lowest and RCH (23.8) the greatest. Diet type was associated with differences in the proportions of only a small number of specific milk fatty acids, and differences in proportions of specific fatty acids were not related to CH4 emissions.

Effects of a potato pulp silage supplement on the composition of milk fatty acids when fed to grazing dairy cows

2009 ◽  
Vol 152 (1-2) ◽  
pp. 81-91 ◽  
Author(s):  
Maimaijiang Zunong ◽  
Tuerxun Tuerhong ◽  
M. Okamoto ◽  
A. Hongo ◽  
M. Hanada
Keyword(s):  
Fatty Acids ◽  
Dairy Cows ◽  
Milk Fatty Acids ◽  
Potato Pulp ◽  
Grazing Dairy Cows

Investigating mutual relationship among milk fatty acids by multivariate factor analysis in dairy cows

2016 ◽  
Vol 188 ◽  
pp. 124-132 ◽  
Author(s):  
G. Conte ◽  
A. Serra ◽  
P. Cremonesi ◽  
S. Chessa ◽  
B. Castiglioni ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Factor Analysis ◽  
Dairy Cows ◽  
Mutual Relationship ◽  
Milk Fatty Acids ◽  
Multivariate Factor Analysis

scholarly journals Individual milk fatty acids are potential predictors of enteric methane emissions from dairy cows fed a wide range of diets: Approach by meta-analysis

2019 ◽  
Vol 102 (11) ◽  
pp. 10616-10631 ◽  
Author(s):  
A. Bougouin ◽  
J. A. D. Ranga Niroshan Appuhamy ◽  
A. Ferlay ◽  
E. Kebreab ◽  
C. Martin ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Dairy Cows ◽  
Meta Analysis ◽  
Methane Emissions ◽  
Milk Fatty Acids ◽  
Wide Range ◽  
Enteric Methane ◽  
Enteric Methane Emissions

Colostrum and milk fatty acids of dairy cows as influenced by extruded linseed supplementation during the transition period

2009 ◽  
Vol 89 (3) ◽  
pp. 383-392 ◽  
Author(s):  
D E Santschi ◽  
H -R Wettstein ◽  
F Leiber ◽  
A.-K. M Witschi ◽  
M Kreuzer
Keyword(s):  
Fatty Acids ◽  
Dairy Cows ◽  
Transition Period ◽  
Fast Response ◽  
Metabolic Parameters ◽  
Feeding Strategies ◽  
Early Lactation ◽  
Omega 3 ◽  
Milk Fatty Acids ◽  
Carry Over

The effects of precalving fat sources on fatty acid (FA) profile of colostrum and milk and on metabolic parameters in early lactation were determined. Two fat supplements (target: 21% fat, DM basis) fed at 1.8 kg DM d-1 were compared: Control (C; containing fractionated palm oil rich in 16:0) and Linseed (L; containing extruded linseed, rich in 18:3n-3). Sixteen dry Holstein (n = 7) and Brown Swiss (n = 9) cows were assigned to four groups receiving the supplements from 5 wk pre- to 4 wk post-calving in different sequences: CC, CL, LC and LL. Treatments did not affect metabolic parameters, milk yield or composition. Linseed supplementation increased proportions of 18:0, 18:1, 18:2 and 18:3 in colostrum and milk (except 18:1 for colostrum). The highest n-3 FA proportion was observed in milk of LL cows. For most 16 and 18 FA, a fast response occurred within the first week of lactation for cows that switched treatments over calving. Carry-over to milk of 18:3 and its biohydrogenation products from linseed fed precalving was low. Pre-calving feeding strategies to favour incorporation of these FA into early lactation milk were not successful, but the reasons for this failure remain unclear.Key words: Linseed, omega-3 fatty acids, transition period, milk, colostrum, dairy cows

scholarly journals Milk fatty acids profiles and milk production from dairy cows fed different forage quality diets

2016 ◽  
Vol 2 (4) ◽  
pp. 329-333 ◽  
Author(s):  
Shuaiwang Liu ◽  
Runhou Zhang ◽  
Rong Kang ◽  
Jinzhu Meng ◽  
Changjin Ao
Keyword(s):  
Fatty Acids ◽  
Dairy Cows ◽  
Milk Production ◽  
Forage Quality ◽  
Milk Fatty Acids
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