Methane emissions from Angus and Brahman heifers fed forage-based diets

Gamaliel Simanungkalit; Jamie Barwick; Fran Cowley; Roger Hegarty

Abstract

Enteric methane (CH₄) production from ruminants, especially cattle, is considered the biggest contributor to global greenhouse (GHG) emissions from the agricultural sector. In Australia, grazing cattle and sheep are responsible for 71% of the total Agricultural GHG emissions (Badgery et al. 2023). Grazing beef cattle in Australia are mainly represented by Bos taurus (Angus) in the southern region and Bos indicus (Brahman) in the northern region. Thus, differentiating CH₄ production between the two breeds is essential to calculate the contribution of each breed, not only by the population, but by taking the breed factor into account as a variable. However, measuring CH₄ from grazing livestock, particularly in extensive rangeland environments, is technically prohibitive. This study aimed to investigate the difference in CH₄ emissions from Angus and Brahman heifers kept in a controlled outdoor environment. It was hypothesised that there was a significant difference between CH₄ emissions from Angus and Brahman heifers.

Original language	English
Pages	144-144
Publication status	Published - 31 Jul 2024
Event	AAAS/AAAP 2024: the 35th Biennial Conference of the Australian Association of Animal Sciences and the 20th Asian-Australasian Association of Animal Production Societies - Melbourne Convention and Exhibition Centre South Wharf Melbourne, Victoria, 3006, Melbourne, Australia Duration: 9 Jul 2024 → 12 Jul 2024

Other

Other	AAAS/AAAP 2024: the 35th Biennial Conference of the Australian Association of Animal Sciences and the 20th Asian-Australasian Association of Animal Production Societies
City	Melbourne, Australia
Period	9/07/24 → 12/07/24

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Simanungkalit, G., Barwick, J., Cowley, F., & Hegarty, R. (2024). Methane emissions from Angus and Brahman heifers fed forage-based diets. 144-144. Abstract from AAAS/AAAP 2024: the 35th Biennial Conference of the Australian Association of Animal Sciences and the 20th Asian-Australasian Association of Animal Production Societies, Melbourne, Australia. https://hdl.handle.net/1959.11/61704

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title = "Methane emissions from Angus and Brahman heifers fed forage-based diets",

abstract = "Enteric methane (CH4) production from ruminants, especially cattle, is considered the biggest contributor to global greenhouse (GHG) emissions from the agricultural sector. In Australia, grazing cattle and sheep are responsible for 71\% of the total Agricultural GHG emissions (Badgery et al. 2023). Grazing beef cattle in Australia are mainly represented by Bos taurus (Angus) in the southern region and Bos indicus (Brahman) in the northern region. Thus, differentiating CH4 production between the two breeds is essential to calculate the contribution of each breed, not only by the population, but by taking the breed factor into account as a variable. However, measuring CH4 from grazing livestock, particularly in extensive rangeland environments, is technically prohibitive. This study aimed to investigate the difference in CH4 emissions from Angus and Brahman heifers kept in a controlled outdoor environment. It was hypothesised that there was a significant difference between CH4 emissions from Angus and Brahman heifers.",

author = "Gamaliel Simanungkalit and Jamie Barwick and Fran Cowley and Roger Hegarty",

year = "2024",

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day = "31",

language = "English",

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Simanungkalit, G , Barwick, J , Cowley, F & Hegarty, R 2024, 'Methane emissions from Angus and Brahman heifers fed forage-based diets', AAAS/AAAP 2024: the 35th Biennial Conference of the Australian Association of Animal Sciences and the 20th Asian-Australasian Association of Animal Production Societies, Melbourne, Australia, 9/07/24 - 12/07/24 pp. 144-144. <https://hdl.handle.net/1959.11/61704>

Methane emissions from Angus and Brahman heifers fed forage-based diets. / Simanungkalit, Gamaliel ; Barwick, Jamie ; Cowley, Fran et al.
2024. 144-144 Abstract from AAAS/AAAP 2024: the 35th Biennial Conference of the Australian Association of Animal Sciences and the 20th Asian-Australasian Association of Animal Production Societies, Melbourne, Australia.

Research output: Contribution to conference › Abstract › peer-review

TY - CONF

T1 - Methane emissions from Angus and Brahman heifers fed forage-based diets

AU - Simanungkalit, Gamaliel

AU - Barwick, Jamie

AU - Cowley, Fran

AU - Hegarty, Roger

PY - 2024/7/31

Y1 - 2024/7/31

N2 - Enteric methane (CH4) production from ruminants, especially cattle, is considered the biggest contributor to global greenhouse (GHG) emissions from the agricultural sector. In Australia, grazing cattle and sheep are responsible for 71% of the total Agricultural GHG emissions (Badgery et al. 2023). Grazing beef cattle in Australia are mainly represented by Bos taurus (Angus) in the southern region and Bos indicus (Brahman) in the northern region. Thus, differentiating CH4 production between the two breeds is essential to calculate the contribution of each breed, not only by the population, but by taking the breed factor into account as a variable. However, measuring CH4 from grazing livestock, particularly in extensive rangeland environments, is technically prohibitive. This study aimed to investigate the difference in CH4 emissions from Angus and Brahman heifers kept in a controlled outdoor environment. It was hypothesised that there was a significant difference between CH4 emissions from Angus and Brahman heifers.

AB - Enteric methane (CH4) production from ruminants, especially cattle, is considered the biggest contributor to global greenhouse (GHG) emissions from the agricultural sector. In Australia, grazing cattle and sheep are responsible for 71% of the total Agricultural GHG emissions (Badgery et al. 2023). Grazing beef cattle in Australia are mainly represented by Bos taurus (Angus) in the southern region and Bos indicus (Brahman) in the northern region. Thus, differentiating CH4 production between the two breeds is essential to calculate the contribution of each breed, not only by the population, but by taking the breed factor into account as a variable. However, measuring CH4 from grazing livestock, particularly in extensive rangeland environments, is technically prohibitive. This study aimed to investigate the difference in CH4 emissions from Angus and Brahman heifers kept in a controlled outdoor environment. It was hypothesised that there was a significant difference between CH4 emissions from Angus and Brahman heifers.

M3 - Abstract

SP - 144

EP - 144

T2 - AAAS/AAAP 2024: the 35th Biennial Conference of the Australian Association of Animal Sciences and the 20th Asian-Australasian Association of Animal Production Societies

Y2 - 9 July 2024 through 12 July 2024