scholarly journals Correction: Boland, T.M.; et al. Feed Intake, Methane Emissions, Milk Production and Rumen Methanogen Populations of Grazing Dairy Cows Supplemented with Various C 18 Fatty Acid Sources. Animals 2020, 10, 2380

Animals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 280
Author(s):  
Tommy M. Boland ◽  
Karina M. Pierce ◽  
Alan K. Kelly ◽  
David A. Kenny ◽  
Mary B. Lynch ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Dairy Cows ◽  
Milk Production ◽  
Feed Intake ◽  
Methane Emissions ◽  
Grazing Dairy Cows ◽  
Published Paper ◽  
Rumen Methanogen

The authors wish to make a change to the published paper [...]

scholarly journals Feed Intake, Methane Emissions, Milk Production and Rumen Methanogen Populations of Grazing Dairy Cows Supplemented with Various C 18 Fatty Acid Sources

Animals ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 2380
Author(s):  
Tommy M. Boland ◽  
Karina M. Pierce ◽  
Alan K. Kelly ◽  
David A. Kenny ◽  
Mary B. Lynch ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Dairy Cows ◽  
Milk Production ◽  
Production Systems ◽  
Linseed Oil ◽  
Ch4 Emissions ◽  
Grazed Pasture ◽  
Grazing Dairy Cows ◽  
Milk Solids ◽  
Rumen Methanogen

Emissions of methane (CH4) from dairy production systems are environmentally detrimental and represent an energy cost to the cow. This study evaluated the effect of varying C18 fatty acid sources on CH4 emissions, milk production and rumen methanogen populations in grazing lactating dairy cows. Forty-five Holstein Friesian cows were randomly allocated to one of three treatments (n = 15). Cows were offered 15 kg dry matter (DM)/d of grazed pasture plus supplementary concentrates (4 kg DM/d) containing either stearic acid (SA), linseed oil (LO), or soy oil (SO). Cows offered LO and SO had lower pasture DM intake (DMI) than those offered SA (11.3, 11.5 vs. 12.6 kg/d). Cows offered LO and SO had higher milk yield (21.0, 21.3 vs. 19.7 kg/d) and milk protein yield (0.74, 0.73 vs. 0.67 kg/d) than those offered SA. Emissions of CH4 (245 vs. 293, 289 g/d, 12.4 vs. 15.7, 14.8 g/kg of milk and 165 vs. 207, 195 g/kg of milk solids) were lower for cows offered LO than those offered SA or SO. Methanobrevibacter ruminantium abundance was reduced in cows offered LO compared to SA. Offering supplementary concentrates containing LO can reduce enteric CH4 emissions from pasture fed dairy cows.

608 Replacing corn grain by crude glycerol in diets of grazing dairy cows: Feed intake, pasture degradability, and milk production

2017 ◽  
Vol 95 (suppl_4) ◽  
pp. 297-298
Author(s):  
M. D. L. A. Bruni ◽  
M. Carriquiry ◽  
A. Delgado ◽  
P. Chilibroste
Keyword(s):  
Dairy Cows ◽  
Milk Production ◽  
Feed Intake ◽  
Crude Glycerol ◽  
Grazing Dairy Cows ◽  
Corn Grain

scholarly journals Effects of feeding algal meal high in docosahexaenoic acid on feed intake, milk production, and methane emissions in dairy cows

2013 ◽  
Vol 96 (5) ◽  
pp. 3177-3188 ◽  
Author(s):  
P.J. Moate ◽  
S.R.O. Williams ◽  
M.C. Hannah ◽  
R.J. Eckard ◽  
M.J. Auldist ◽  
...  
Keyword(s):  
Docosahexaenoic Acid ◽  
Dairy Cows ◽  
Milk Production ◽  
Feed Intake ◽  
Methane Emissions

Effects of concentrate supplementation on enteric methane emissions and milk production of grazing dairy cows

2015 ◽  
Vol 175 ◽  
pp. 37-46 ◽  
Author(s):  
Camila Muñoz ◽  
Sara Hube ◽  
Jorge M. Morales ◽  
Tianhai Yan ◽  
Emilio M. Ungerfeld
Keyword(s):  
Dairy Cows ◽  
Milk Production ◽  
Methane Emissions ◽  
Concentrate Supplementation ◽  
Enteric Methane ◽  
Grazing Dairy Cows ◽  
Enteric Methane Emissions

scholarly journals Effects of Grass Silage and Soybean Meal Supplementation on Milk Production and Milk Fatty Acid Profiles of Grazing Dairy Cows

2008 ◽  
Vol 91 (7) ◽  
pp. 2736-2743 ◽  
Author(s):  
O.A. Rego ◽  
S.M.M. Regalo ◽  
H.J.D. Rosa ◽  
S.P. Alves ◽  
A.E.S. Borba ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Dairy Cows ◽  
Milk Production ◽  
Soybean Meal ◽  
Milk Fatty Acid ◽  
Fatty Acid Profiles ◽  
Grass Silage ◽  
Grazing Dairy Cows

scholarly journals An inhibitor persistently decreased enteric methane emission from dairy cows with no negative effect on milk production

2015 ◽  
Vol 112 (34) ◽  
pp. 10663-10668 ◽  
Author(s):  
Alexander N. Hristov ◽  
Joonpyo Oh ◽  
Fabio Giallongo ◽  
Tyler W. Frederick ◽  
Michael T. Harper ◽  
...  
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Dairy Cows ◽  
Milk Production ◽  
Methane Emission ◽  
Feed Intake ◽  
Dry Matter ◽  
Body Weight Gain ◽  
Methane Emissions ◽  
Enteric Methane

A quarter of all anthropogenic methane emissions in the United States are from enteric fermentation, primarily from ruminant livestock. This study was undertaken to test the effect of a methane inhibitor, 3-nitrooxypropanol (3NOP), on enteric methane emission in lactating Holstein cows. An experiment was conducted using 48 cows in a randomized block design with a 2-wk covariate period and a 12-wk data collection period. Feed intake, milk production, and fiber digestibility were not affected by the inhibitor. Milk protein and lactose yields were increased by 3NOP. Rumen methane emission was linearly decreased by 3NOP, averaging about 30% lower than the control. Methane emission per unit of feed dry matter intake or per unit of energy-corrected milk were also about 30% less for the 3NOP-treated cows. On average, the body weight gain of 3NOP-treated cows was 80% greater than control cows during the 12-wk experiment. The experiment demonstrated that the methane inhibitor 3NOP, applied at 40 to 80 mg/kg feed dry matter, decreased methane emissions from high-producing dairy cows by 30% and increased body weight gain without negatively affecting feed intake or milk production and composition. The inhibitory effect persisted over 12 wk of treatment, thus offering an effective methane mitigation practice for the livestock industries.

Effects of supplementary corn silage on the feed intake and milk production of time-restricted grazing dairy cows

2005 ◽  
Vol 76 (4) ◽  
pp. 331-337 ◽  
Author(s):  
Tomohiro MITANI ◽  
Makoto TAKAHASHI ◽  
Koichiro UEDA ◽  
Hiroki NAKATSUJI ◽  
Seiji KONDO ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Milk Production ◽  
Feed Intake ◽  
Corn Silage ◽  
Grazing Dairy Cows

scholarly journals The effects of supplementing grazing dairy cows with partial mixed ration on enteric methane emissions and milk production during mid to late lactation

2012 ◽  
Vol 95 (11) ◽  
pp. 6582-6590 ◽  
Author(s):  
B.F. O’Neill ◽  
M.H. Deighton ◽  
B.M. O’Loughlin ◽  
N. Galvin ◽  
M. O’Donovan ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Milk Production ◽  
Methane Emissions ◽  
Enteric Methane ◽  
Grazing Dairy Cows ◽  
Enteric Methane Emissions

scholarly journals Milk Fatty-Acid Profile after Feeding Increasing Doses of a Mixture of Soybean and Linseed Oils to Pasture Dairy Cows

2020 ◽  
Vol 1 (3) ◽  
Author(s):  
Liliana Elisabet Antonacci ◽  
Gerardo Antonio Gagliostro
Keyword(s):  
Fatty Acid ◽  
Dairy Cows ◽  
Milk Production ◽  
Milk Fat ◽  
Vaccenic Acid ◽  
Atherogenic Index ◽  
Milk Fatty Acid ◽  
Randomized Design ◽  
Oil Blend ◽  
Grazing Dairy Cows

The objective was to determine the effect of increasing intake of a mixture (75:25) of soybean (SO) and linseed  (LO) oils on milk production and composition and milk fatty acid (FA) profile in grazing dairy cows. Twenty-four Holstein cows were assigned to 4 treatments in a completely randomized design with three weeks of adaptation to oil doses and one week of experimental measurements. On a dry matter (DM) basis, cows were fed pasture (63%), energy concentrate (37%) and the SO-LO oil mixture at zero (T0), 2% (T2%), 4% (T4%) and 6% (T6%) of total DM intake equivalent to 0, 0.36, 0.72 and 1.08 kg cow-1 day-1 of the oil mixture. The oil blend was manually mixed to the concentrate (7.04 kg DM cow-1 day-1) and supplied by halves during each milking time without refusals. Pasture (P = 0.49) and total DM intakes (P = 0.31) were similar between treatments averaging 11.27 and 18.85 kg DM cow-1 day-1 respectively. Milk production (22.71 kg cow-1 day-1) was not affected (P = 0.46). Milk fat content decreased linearly (P < 0.05) from 3.20 (T0) to 2.67 g 100 g-1 (T6%) without effects (P = 0.73) on fat or fat corrected milk (4%FCM) yields. Milk protein concentration (P < 0.56) or yields (P < 0.11 were not affected. Lactose content tended (P < 0.08) to be higher in oil supplemented cows and milk urea nitrogen was not affected (P = 0.14). The basal (T0%) concentration (g 100 g-1 FA) of total hypercholesterolemic FA (C12:0, C14:0 and C16:0) of milk averaged 38.93 and decreased linearly (P < 0.0001) with oil intake to 37.81 (T2%), 31.59 (T4%) and 29.18 (T6%). Levels of elaidic (trans-9 C18:1) and trans-10 C18:1 FA resulted low in the basal (T0%) milk (0.21 and 0.20 g 100 g-1 FA respectively) but increased linearly (P < 0.0001) after oil intake reaching the maximum values at T6% (0.73 and 2.23 g 100 g-1 FA respectively). Milk concentration (g 100 g-1 FA) of vaccenic acid (trans-11 C18:1, VA) averaged 3.63 in T0% and increased linearly (P < 0.0001) with oil intake reaching 4.97, 7.05 and 8.38 in T2%, T4% and T6%, respectively. Basal concentration of rumenic acid (cis-9. trans-11 C18:2, RA) was 2.28 g 100 g-1 FA and increased linearly (P < 0.0001) with increased oil dose resulting in maximal plateau in T4% (3.88) and T6% (3.89). The basal  atherogenic index (AI) of milk was 1.87 and linearly decreased (P < 0.01) to 1.64 (T2%), 1.18 (T4%) and 0.95 (T6%) after oil intake. The basal n-6/n-3 ratio (3.57) did not differ (P > 0.05) from T2% (3.37) but was higher (P < 0.05) in T4% (4.41) and T6% (4.63) remaining under the recommended value of 5:1. Taken together the results suggest that feeding a blend (75:25; SO:LO) of SO an LO oils at 4% of total DM intake to grazing dairy cows maximize the milk RA content with a concomitant decrease in the hypercholesterolemic FA of milk maintaining a healthy n− 6/n−3 ratio with low levels of the detrimental trans-9 C18:1 and trans-10 C18:1.

Effects of pre-feeding of a corn silage-based supplement on the feed intake, milk production and nitrogen utilization of grazing dairy cows

2005 ◽  
Vol 76 (5) ◽  
pp. 453-460 ◽  
Author(s):  
Tomohiro MITANI ◽  
Makoto TAKAHASHI ◽  
Koichiro UEDA ◽  
Hiroki NAKATSUJI ◽  
Seiji KONDO
Keyword(s):  
Dairy Cows ◽  
Milk Production ◽  
Feed Intake ◽  
Nitrogen Utilization ◽  
Corn Silage ◽  
Grazing Dairy Cows
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