Buffalo heifers selected for lower residual feed intake have lower feed intake, better dietary nitrogen utilisation and reduced enteric methane production

2017 ◽  
Vol 102 (2) ◽  
pp. e607-e614 ◽  
Author(s):  
V. K. Sharma ◽  
S. S. Kundu ◽  
C. Datt ◽  
S. Prusty ◽  
M. Kumar ◽  
...  
Keyword(s):  
Feed Intake ◽  
Methane Production ◽  
Residual Feed Intake ◽  
Dietary Nitrogen ◽  
Enteric Methane ◽  
Nitrogen Utilisation

The impact of breeding to reduce residual feed intake on enteric methane emissions from the Australian beef industry

2006 ◽  
Vol 46 (7) ◽  
pp. 813 ◽  
Author(s):  
A. R. Alford ◽  
R. S. Hegarty ◽  
P. F. Parnell ◽  
O. J. Cacho ◽  
R. M. Herd ◽  
...  
Keyword(s):  
Gene Flow ◽  
Feed Intake ◽  
Residual Feed Intake ◽  
Methane Emissions ◽  
Beef Industry ◽  
Enteric Methane ◽  
Beef Herd ◽  
The Individual ◽  
The Impact ◽  
Enteric Methane Emissions

The expected reduction in methane emissions from the Australian beef herd resulting from using bulls identified as being more feed efficient as a result of having a lower residual feed intake (RFI) was modelled, both in a single herd in southern Australia and in the national herd. A gene flow model was developed to simulate the spread of improved RFI genes through a breeding herd over 25 years, from 2002 to 2026. Based on the estimated gene flow, the voluntary feed intakes were revised annually for all beef classes using livestock populations taken from the Australian National Greenhouse Gas Inventory (NGGI). Changes in emissions (kg methane/animal.year) associated with the reduction in feed intake were then calculated using NGGI procedures. Annual enteric methane emissions from both the individual and national herd were calculated by multiplying the livestock numbers in each beef class by the revised estimates of emissions per animal. For an individual adopting herd, the annual methane abatement in year 25 of selection was 15.9% lower than in year 1. For the national herd, differential lags and limits to adoption were assumed for northern and southern Australia. The cumulative reduction in national emissions was 568 100 t of methane over 25 years, with annual emissions in year 25 being 3.1% lower than in year 1. It is concluded that selection for reduced RFI will lead to substantial and lasting methane abatement, largely as a consequence of its implementation as a breeding objective for the grazing beef herd.

scholarly journals Phenotypic modeling of residual feed intake using physical activity and methane production as energy sinks

2020 ◽  
Vol 103 (8) ◽  
pp. 6967-6981 ◽  
Author(s):  
D.W. Olijhoek ◽  
G.F. Difford ◽  
P. Lund ◽  
P. Løvendahl
Keyword(s):  
Physical Activity ◽  
Feed Intake ◽  
Methane Production ◽  
Residual Feed Intake

490 Estimating enteric methane emission from beef heifers with different residual feed intake using greenfeed and respiration chambers

2017 ◽  
Vol 95 (suppl_4) ◽  
pp. 239-240
Author(s):  
A. W. Alemu ◽  
D. Vyas ◽  
G. Manafiazar ◽  
J. A. Basarab ◽  
K. A. Beauchemin
Keyword(s):  
Methane Emission ◽  
Feed Intake ◽  
Residual Feed Intake ◽  
Beef Heifers ◽  
Enteric Methane

Effects of grass silage quality and level of feed intake on enteric methane production in lactating dairy cows1

2017 ◽  
Vol 95 (8) ◽  
pp. 3687-3699 ◽  
Author(s):  
D. Warner ◽  
A. Bannink ◽  
B. Hatew ◽  
H. van Laar ◽  
J. Dijkstra
Keyword(s):  
Feed Intake ◽  
Methane Production ◽  
Grass Silage ◽  
Enteric Methane ◽  
Silage Quality

Effects of grass silage quality and level of feed intake on enteric methane production in lactating dairy cows

2017 ◽  
Vol 95 (8) ◽  
pp. 3687 ◽  
Author(s):  
D. Warner ◽  
A. Bannink ◽  
B. Hatew ◽  
H. van Laar ◽  
J. Dijkstra
Keyword(s):  
Dairy Cows ◽  
Feed Intake ◽  
Methane Production ◽  
Grass Silage ◽  
Lactating Dairy Cows ◽  
Enteric Methane ◽  
Silage Quality

scholarly journals Relationship between residual feed intake and enteric methane emission in Nellore cattle

2015 ◽  
Vol 44 (7) ◽  
pp. 255-262 ◽  
Author(s):  
Maria Eugênia Zerlotti Mercadante ◽  
Ana Paula de Melo Caliman ◽  
Roberta Carrilho Canesin ◽  
Sarah Figueiredo Martins Bonilha ◽  
Alexandre Berndt ◽  
...  
Keyword(s):  
Methane Emission ◽  
Feed Intake ◽  
Residual Feed Intake ◽  
Enteric Methane ◽  
Nellore Cattle

scholarly journals Association between fecal methanogen species with methane production and grazed forage intake of beef heifers classified for residual feed intake under drylot conditions

animal ◽  
2021 ◽  
Vol 15 (8) ◽  
pp. 100304
Author(s):  
G. Manafiazar ◽  
C. Fitzsimmons ◽  
M. Zhou ◽  
J.A. Basarab ◽  
V.S. Baron ◽  
...  
Keyword(s):  
Feed Intake ◽  
Methane Production ◽  
Residual Feed Intake ◽  
Beef Heifers ◽  
Forage Intake
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