Cattle, manufacturing beef, live weight, Mitchell {AU-QLD}| AusLCI, U

Unit process v00.00.000

This dataset represents the production of cattle for beef. The reference flow is 1000 Documentation for this dataset can be found in the 'LCAgMetrics Methodology for developing Life Cycle Inventory' report, available at https://agrifutures.com.au/. (Hume, I., Renouf, M.A., Eady, S.J., Grant, T., 2025). It was developed as part of the LCAgMetrics project, a partnership between Agrifutures Australia and Lifecycles, funded by the Australian Government's Sustainability Reporting Uplift Grant as part of the National Agriculture Traceability Grants Program. Production Volume: 211276.381 kg Activities included: The inventory begins with the breeding, growing and maintenance of cattle in the State, Region, and Production System detailed. Activities included are: Pasture, feed inputs, supplements and energy use on farm. Direct field emissions are included. The system boundary ends at the farm gate with the production of cattle for sale in three classes - culled cattle (Cast For Age cows and bulls), prime cattle (heifers, feeder steers and finished steers) and weaner cattle (female and male). Energy values: 13.0 MJ/kg. Nutritional values: Protein: 14.1%. Carbohydrate: 0.8%. Fat: 14.6%. Geography: Mitchell, Queensland, Australia. Technology level: Represents current practices as per gross margins reports (NSW DPI 2023 Rural Solutions SA 2022). Time period: 2017-2021. Version: 1.2 Record: Data entry by: Sandra Eady Tel: ; email: office@lifecycles.com.au; company:Lifecycles; Country: AU Generator: Generator/publicator: Sandra Eady Tel: ; email: office@lifecycles.com.au; company:Lifecycles; Country: AU

Sector
Material
Contributor
—
Last updated
29 Apr 2024
Reference ID
9a56b770-7032-30c5-ab6d-14485d6e9c24

Download this dataset Ask a question about this dataset

Downloads require a free account. You'll be asked to register or sign in.

Documentation

Quantitative reference
Cattle, manufacturing beef, live weight, Mitchell {AU-QLD}| AusLCI, U
Sampling procedure
Herd structure and product turn-off from Breedcow Beef CRC templates (Holmes et al. 2011), Gross Margin publications (New South Wales Department of Primary Industries 2023; Ag Excellence Alliance 2024).
Creation date
29 Apr 2024
Is copyright protected
No
Is infrastructure process
No
Tags
material
Sources
National Inventory Report (NIR) 2023/2025/DCCEEW
Ash alkalinity/1991/Slattery et al.
Building a foundation for soil condition assessment/2009/Baldock et al.
Environmental performance of large ruminant supply chains/2016/FAO
A Greenhouse Accounting Framework for Beef and Sheep/2020/Ekonomou A.
Agricultural Commodities, Australia, 2018-2022/2023/ABS
Assessing beef carcass tissue weights\2010\Navajas et al.
Beef Cattle Gross Margin Budget/2023/NSW DPI /2023
Efficiency of absorbed protein/2018/Mariz, L.D.S. et al
Farm Gross Margin 2015/2015/Rural Solutions SA PIRSA
Land use of Australia 2010-11 to 2020-21/2024/ABARES
Protein content of liveweight/2022/Honig, A.C. et al
Representative Herds Templates for Northern Australia V1.00/2011/Holmes et al.
The heat of combustion values of the protein and fat in pigs\1972\Sharma et al.

Product outputs

Flow AmountUnitComment
Cattle, manufacturing beef, live weight, Mitchell {AU-QLD}| AusLCI, U 76394.973 kg (2,1,1,1,1,na) Uncertainty 1.07. Quantity of cattle sold (kg live weight). Carbon content, fossil: 0.0 kg C/kg dry mass. Carbon content, non-fossil: 0.51 kg C/kg dry mass. Dry mass: 0.32 kg/kg wet mass. Wet mass: 1 kg/kg wet mass.

Technical inputs

Flow AmountUnitComment
Carbon correction factor {AU}| | AusLCI, U 1060.2518403915383 kg —
Cattle, manufacturing beef, live weight, Mitchell , biogenic C not balanced {AU-QLD}| AusLCI, U 76394.973 kg —

Parameters

NameValueFormulaDescription
KM_fert 200.0 — (3,1,1,1,1,na) Estimate of transport distance for fertiliser to farm (km)
Fuel 0.647 — (1,1,1,1,1,na) Fuel (L diesel/Cow mated) calculated from economic data reported in farm survey data from ABARES for 2018-2022 (https://www.agriculture.gov.au/abares/data/farm-data-portal).
DM_Livecattle 0.319 — Dry matter fraction of cattle
DM_Wet_mix 0.9 — Dry matter fraction of wet season mix
CC_livecattle 0.541 — (2,3,1,1,1,na) Carbon content 0.541 of animal as DM. (Average carbon content of 0.175 C/kg liveweight assuming dressing of 63%, carcase composition of 70% meat, 20% fat and 10% bone; dry matter content of 15% by-product (blood, rumen, heads and hooves), 25% meat, 85% fat and 74% bone; and carbon content of 53% by-product, 53% meat, 76% fat and 7.5% bone.)
Allocation 1.0 — Allocation switch, 1 = Economic alocation (default for AusLCI), 2 = Energy allocation, 3 = Mass allocation, 4 = Protein Allocation.
All_Pro_CulledBreeders 25.376836606638044 Pro_CulledBreeders/Pro_Total*100 (2,1,1,1,1,na) 1.07 Uncertainty. Allocation to Culled Breeders based on protein requirement (%)
All_Weaners_Eco 6.739337665301324 (KG_Weaners*P_Weaners)/(P_PrimeCattle*KG_PrimeCattle+P_CulledBreeders*KG_CulledBreeders+KG_Weaners*P_weaners)*100 (2,1,1,1,1,na) 1.07 Uncertainty. Economic allocation fraction for Weaned cattle - default for AusLCI (%)
CC_Hay 0.4 — (2,3,1,1,1,na) Carbon content of 0.4 as DM, NIR 2023 (DCCEEW 2025)
EFN_Leach 0.011 — (2,1,1,1,1,na) Emissions factor for proportion of N leached released as N2O.
Wet_mix — — (2,1,1,1,1,na) Total wet season lick (kg)
BioC_Actual_Primecattle 36461.866556599 kg_Primecattle*DM_Livecattle*CC_Livecattle The actual amount of biogenic carbon which should be allocated Prime cattle in kg C.
CC_Dry_mix — — (2,3,1,1,1,na) Carbon content 0.0 of dry season mix
Cows 999.909 — (2,1,1,1,1,na) Number of cows and heifers mated using herd structure from from Breedcow Beef CRC templates (Holmes et al. 2011) and farm gross margins (New South Wales Department of Primary Industries 2023; Ag Excellence Alliance 2024).
AF_Cottonseed — — Acid factor for cottonseed (kMol/kg) based on (Baldock et al. 2009).
PUR_Bulls_NO 11.468 — (2,1,1,1,1,na) Number of replacement bulls purchased per year. Breedcow Beef CRC templates (Holmes et al. 2011) and Gross Margin publications (New South Wales Department of Primary Industries 2023; Ag Excellence Alliance 2024).
All_Pro_PrimeCattle 70.18166233894482 Pro_PrimeCattle/Pro_Total*100 (2,1,1,1,1,na) 1.07 Uncertainty. Allocation to Prime Cattle based on protein requirement (%)
DM_Protein_Pellets 0.9 — Dry matter fraction of protein pellets
All_Weaners_Mass 4.441501054417152 kg_Weaners/ProductTotal*100 (2,1,1,1,1,na) 1.07 Uncertainty. Mass allocation fraction for Weaner cattle (%)
Protein_Pellets — — (2,1,1,1,1,na) Total protein pellets 20% CP fed (kg)
IntParasites_cows 2.0 — Number of internal parasite treatments for cows (New South Wales Department of Primary Industries 2023; Ag Excellence Alliance 2024).
Evap_water_loss_T 2969.87381 Evap_water_loss*HA_GRAZING (1,1,1,1,1,na) 1.05 Uncertainty. Total evaporative water loss from farm dams (ML/year)
EN_lwt 3.1 — Calorific value (kcal/g) of live cattle at 54% dressing %. Sharma et al. 1972 and Navaja et al. 2010.
All_Weaners 6.739337665301324 iff(Allocation=1;All_Weaners_Eco;iff(Allocation=2; All_Weaners_EN; iff(Allocation =3; All_Weaners_Mass; All_Pro_Weaners))) (2,1,1,1,1,na) 1.07 Uncertainty. Allocation to weaners. (%)
P_PrimeCattle 2.84 — (1,1,1,1,1,na) Average price for Young Cattle Indicator (Eastern and Western) and National Feeder Steer ($/kg live weight sold) from MLA https://www.mla.com/prices-markets/statistics/ for 5 year period 2019 - 2024.
HA_GRAZING 27755.83 — (2,1,1,1,1,na) Hectares grazing land by Livestock Region based on based on SA2 Level data from Agricultural Commodities data for five years from 2017/18-2021/22 (Australian Bureau of Statistics 2023) and Land Use of Australia (ABARES 2025).
LEACH_N2O 38.831 — (2,1,1,1,1,na) kg N2O from leached N. Calculated using GAFF Beef and Sheep based on National Inventory Report 2021. Volume 1. Frac_WET estimated independently for each livestock region.
Cottonseed — — (2,1,1,1,1,na) Total cottonseed fed (kg)
BioC_all_Corr_Primecattle -174.38834315817803 BioC_CurrentAll_PrimeCattle-BioC_Actual_Primecattle This is the correction to the biogenic carbon required to balance the biogenic carbon for prime cattle in kg C.
KG_CulledBreeders 76394.973 — (2,1,1,1,1,na) Quantity of Culled cattle sold (kg live weight) e.g. mature bulls, cows and spay cows >3 years old, calculated using herd structure from Breedcow Beef CRC templates (Holmes et al. 2011), Gross Margin publications ( New South Wales Department of Primary Industries 2023; Ag Excellence Alliance 2024).
DM_Copra 0.9 — Dry matter fraction of copra
All_Weaners_En 4.441501054417152 En_Weaners/Tot_En*100 (2,1,1,1,1,na) 1.07 Uncertainty. Allocation to Weaners based on energy content (%)
TRANS_cattle 794.7324000000001 PUR_Bulls/1000*KM_Cattle (2,1,1,1,1,na) 2 Uncertainty. Livestock transport for purchased cattle (t.km).
Tot_En 933230646.4 En_CulledBreeders+En_PrimeCattle+En_Weaners (2,1,1,1,1,na) 1.07 Uncertainty. Total calorific value (kcal) of co-products.
Oats_graz — — (2,1,1,1,1,na) Total area of forage oats grazed (ha)
All_CulledBreeders 23.414662016686812 iff(Allocation=1;All_CulledBreeders_Eco;iff(Allocation=2; All_Culledbreeders_EN; iff(Allocation =3; All_Culledbreeders_Mass; All_Pro_Culledbreeders))) (2,1,1,1,1,na) 1.07 Uncertainty. Allocation to culled breeders. (%)
ENT_CH4 135460.123 — (2,1,1,1,1,na) kg Methane from enteric fermentation. Calculated using GAFF Beef and Sheep based on National Inventory Report 2021. Volume 1.
EN_CulledBreeders 236824416.29999998 En_lwt*1000*KG_CulledBreeders (2,1,1,1,1,na) 1.07 Uncertainty. Total calorific value (kcal) of VulledBreeders.
BioC_CurrentAll_PrimeCattle 36287.47821344082 BioC_Products*All_PrimeCattle/100 Due to the allocation approach this is how much biogenic CO2 is being directed to the prime cattle product. in kg C. This is likely not the correct amount.
TotN_LeachGW 2246.423 — (2,1,1,1,1,na) total N leached to ground water (kg). Calculated using GAFF Beef and Sheep based on National Inventory Report 2021. Volume 1.
All_CulledBreeders_En 25.376836606638037 En_CulledBreeders/Tot_En*100 (2,1,1,1,1,na) 1.07 Uncertainty. Allocation to CulledBreeders based on energy content (%)
Pro_PrimeCattle 16902.11048 KG_PrimeCattle*PC_Lwt*EFF_P_Lwt (2,1,1,1,1,na) 1.07 Uncertainty. Total protein requirement to produce PrimeCattle (kg)
Cattle 2417.83 — (2,1,1,1,1,na) Total number of cattle (Adult Equivalents) carried for the year using herd structure from from Breedcow Beef CRC templates (Holmes et al. 2011) and farm gross margins (New South Wales Department of Primary Industries 2023; Ag Excellence Alliance 2024).
DAM_CH4_HA 0.066 — (2,1,1,1,1,na) Methane emissions form farm dams (kg CH4 ha/yr), calcuted using the temperature based approach descibed by National Inventory Report Vol 1 (Australian Government 2024). Dam density described by National Inventory Report Vol 1 (Australian Government 2024).
KM_Lick 400.0 — (3,1,1,1,1,na) Estimate of transport distance for dry and wet season lick (km)
BioC_as_CH4_emissions 109708.48258499999 (Ent_CH4+Man_CH4+Dam_Ch4)*12/16 kg biogenic carbon emitted as methane from various sources.
CC_Wet_mix — — (2,3,1,1,1,na) Carbon content 0.0 of wet season mix
Water 30469920.8 — (2,1,1,1,1,na) Total drinking water intake (L/year)
Tot_P_fert — P_fert*HA_Grazing*PR_fert (2,1,1,1,1,na) 1.07 Uncertainty. Total fertiliser applied as single superphosphate (kg)
Dry_mix 52078.489 — (2,1,1,1,1,na) Total dry season lick (kg)
DeterminingProd 13370.79 KG_Weaners (2,1,1,1,1,na) 1.07 Uncertainty. Determining product will change with production system: = KG_Weaners when KG_Weaners > KG_PrimeCattle, otherwise KG_PrimeCattle.
Anthelmintics 3613.818 (Cows*IntParasites_cows)+(Calves_weaned*IntParasites_weaners) (2,1,1,1,1,na) 1.07 Uncertainty. Number of doses of anthelmintic adimistered for internal parasites
All_Pro_Weaners 4.441501054417153 Pro_Weaners/Pro_Total*100 (2,1,1,1,1,na) 1.07 Uncertainty. Allocation to Weaners based on protein requirement (%)
MAN_CH4 8985.969 — (2,1,1,1,1,na) kg Methane from manure. Calculated using GAFF Beef and Sheep based on National Inventory Report 2021. Volume 1.
BioC_all__corr_Weaners -1182.0551231083755 BioC_Actual_Weaners-BioC_CurrentAll_Weaners This is the correction to the biogenic carbon required to balance the biogenic carbon for weaners in kg C.
BioC_CurrentAll_CulledBreeders 12123.916204975461 (BioC_Products+BioC_all_Corr_Primecattle)*All_Culledbreeders/100 Due to the allocation approach this is how much biogenic CO2 is being directed to the culled breeders product. in kg C. This is likely not the correct amount.
Copra — — (2,1,1,1,1,na) Total copra meal fed (kg)
TotalTkmRoad 23254.024762996003 (Dry_mix*KM_Lick+Wet_mix*KM_LICK+Hay*KM_Hay+Copra*KM_Copra+Molasses*KM_Molasses+Cottonseed*KM_Cottonseed+Protein_Pellets*KM_Protein_Pellets+Tot_P_fert*KM_fert+Fuel_use*0.84*KM_fuel)/1000 (3,1,1,1,1,na) 2.1 Uncertainty. Total transport for inputs to the system in tkm. All assumed to be transported by articulated trucks.
BioC_Products 51953.552169376 Producttotal*DM_Livecattle*CC_Livecattle kg biogenic carbon in outputs of all products in the inventory before applying allocation
AF_Dry_mix 0.012 — Acid factor for urea (kMol/kg) assuming 30% urea in dry season mix, based on (Baldock et al. 2009).
Vaccine 3613.818 (Cows+Calves_weaned)*Vaccine_vol (2,1,1,1,1,na) 1.07 Uncertainty. Vaccine administered for clostridial and reproductive diseases (ml).
NAAR_Cattle 102.35432896 producttotal*af_cattle/1000 (2,1,1,1,1,na) 1.07 Uncertainty. Change in soil acidity (H ion eq/t) from export of cattle product
AF_Protein_Pellets — — Acid factor for protein pellets (kMol/kg) based on (Baldock et al. 2009).
DM_Cottonseed 0.9 — Dry matter fraction of cottonseed
AF_Copra — — Acid factor for copra (kMol/kg) based on web search unspecifed sources.
CC_Cottonseed 0.45 — (2,3,1,1,1,na) Carbon content of 0.4 as DM, NIR 2023 (DCCEEW 2025)
Calves_weaned 807.0 — (2,1,1,1,1,na) Number of calves weaned using herd structure from from Breedcow Beef CRC templates (Holmes et al. 2011) and farm gross margins (New South Wales Department of Primary Industries 2023; Ag Excellence Alliance 2024).
BioC_CurrentAll_Weaners 3489.572690518376 (BioC_Products+BioC_all_Corr_Primecattle)*All_Weaners/100 Due to the allocation approach this is how much biogenic CO2 is being directed to the weaner product. in kg C. This is likely not the correct amount.
P_fert — — (2,1,1,1,1,na) Fertiliser applied as single superphosphate 8.8% P (kg/ha/year). Breedcow Beef CRC templates (Holmes et al. 2011), Gross Margin publications ( New South Wales Department of Primary Industries 2023; Ag Excellence Alliance 2024).
DU_N2O 487.119 — (2,1,1,1,1,na) kg N2O from dung and urine. Calculated using GAFF Beef and Sheep based on National Inventory Report 2021. Volume 1.
All_CulledBreeders_Mass 25.376836606638044 kg_CulledBreeders/ProductTotal*100 (2,1,1,1,1,na) 1.07 Uncertainty. Mass allocation fraction for Culled cattle (%)
BioC_Pasture_nett 152461.387092016 BioC_Products+BioC_as_CH4_emissions-BioC_inputs kg biogenic carbon added to cattle by pasture after accounting incoming feed, respiration, losses as methane and other losses from system.
KG_PrimeCattle 211276.381 — (2,1,1,1,1,na) Quantity of Prime cattle sold (kg live weight) e.g. steers/bullocks, heifers (2 and 3 year old), calculated using herd structure from Breedcow Beef CRC templates (Holmes et al. 2011), Gross Margin publications ( New South Wales Department of Primary Industries 2023; Ag Excellence Alliance 2024).
All_PrimeCattle_Eco 69.84600031801186 (P_PrimeCattle*KG_PrimeCattle)/(P_PrimeCattle*KG_PrimeCattle+P_CulledBreeders*KG_CulledBreeders+KG_Weaners*P_weaners)*100 (2,1,1,1,1,na) 1.07 Uncertainty. Economic allocation fraction for Prime cattle - default for AusLCI (%)
Molasses — — (2,1,1,1,1,na) Total molasses fed (kg)
EN_PrimeCattle 654956781.1 EN_lwt*1000*KG_PrimeCattle (2,1,1,1,1,na) 1.07 Uncertainty. Total calorific value (kcal) of PrimeCattle.
BioC_Actual_CulledBreeders 13184.168045367 kg_Culledbreeders*DM_Livecattle*CC_Livecattle The actual amount of biogenic carbon which should be allocated culled breeders in kg C.
Hay 22596.0 — (2,1,1,1,1,na) Total hay fed (kg)
AF_Cattle 0.34 — Acid factor for red meat (kMol/kg) based on (Slattery et al.).
IntParasites_weaners 2.0 — Number of internal parasite treatments for weaners (New South Wales Department of Primary Industries 2023; Ag Excellence Alliance 2024).
KM_fuel 300.0 — (3,1,1,1,1,na) Estimate of transport distance for fuel to farm (km)
All_PrimeCattle 69.84600031801186 iff(Allocation=1;All_PrimeCattle_Eco;iff(Allocation=2; All_PrimeCattle_EN; iff(Allocation =3; All_PrimeCattle_Mass; All_Pro_PrimeCattle))) (2,1,1,1,1,na) 1.07 Uncertainty. Allocation to prime cattle. (%)
KG_Weaners 13370.79 — (2,1,1,1,1,na) Quantity of Weaners sold (kg live weight) - both sexes < 1 year old, calculated using herd structure from Breedcow Beef CRC templates (Holmes et al. 2011), Gross Margin publications ( New South Wales Department of Primary Industries 2023; Ag Excellence Alliance 2024).
CC_Protein_Pellets 0.405 — (2,3,1,1,1,na) Carbon content of 0.5 as DM
KM_Cottonseed 400.0 — (3,1,1,1,1,na) Estimate of transport distance for cottonseed (km)
All_PrimeCattle_En 70.18166233894482 En_PrimeCattle/Tot_En*100 (2,1,1,1,1,na) 1.07 Uncertainty. Allocation to PrimeCattle based on energy content (%)
Pro_CulledBreeders 6111.59784 KG_CulledBreeders*PC_Lwt*EFF_P_Lwt (2,1,1,1,1,na) 1.07 Uncertainty. Total protein requirement to produce Culled Breeders (kg)
DM_Hay 0.88 — Dry matter fraction of hay
Sorghum_graz — — (2,1,1,1,1,na) Total area of forage sorghum grazed (ha)
NAAR_Inputs -15.192258132 (Dry_mix*AF_Dry_mix+Wet_mix*AF_Wet_mix+Hay*AF_Hay+Copra*AF_Copra+Molasses*AF_Molasses+Cottonseed*AF_Cottonseed+Protein_Pellets*AF_Protein_Pellets)/1000 (2,1,1,1,1,na) 1.07 Uncertainty. Net change in soil acidity (H ion eq) from imported products (feeds, fertilizer)
CC_Molasses 0.347 — (2,3,1,1,1,na) Carbon content of 0.42 as DM
Evap_water_loss 0.107 — (1,1,1,1,1,na) Evaporative water loss from farm dams (ML/ha/year). Dam density described by National Inventory Report Vol 1 (Australian Government 2024) with evaporation rate from Bureau of Metorology 1990-2020.
EFF_P_Lwt 0.4 — Efficiency of use of absorbed protein partitioned to liveweight. Mariz, L.D.S. 2018 J. Anim Sci 96: 670-683 doi: 10.1093/jas/sky018
KM_Hay 100.0 — (3,1,1,1,1,na) Estimate of transport distance for hay (km)
Soil_C_loss — — (2,1,1,1,1,na) Loss of Soil Orgnic Carbon t C/ha/year in 0-30cm layer
Vaccine_vol 2.0 — (2,1,1,1,1,na) Volume of individual vaccine (ml)
PUR_Bulls_WT 630.0 — (2,1,1,1,1,na) Liveweight (kg) of replacement bulls purchased each year. Breedcow Beef CRC templates (Holmes et al. 2011) and Gross Margin publications ( New South Wales Department of Primary Industries 2023; Ag Excellence Alliance 2024).
BioC_inputs 9200.647662360001 Hay*DM_hay*CC_Hay+Copra*DM_Copra*CC_Copra+Molasses*DM_Molasses*CC_Molasses+Cottonseed*DM_Cottonseed*CC_Cottonseed+Protein_Pellets*DM_Protein_Pellets*CC_Protein_Pellets+PUR_Bulls*DM_Livecattle*CC_Livecattle kg biogenic carbon inputs from feeds
PC_Lwt 0.2 — Protein content of liveweight. Honig, A.C. et al. 2022 Meat Science 184 doi: 10.1016/j.meatsci.2021.108685
EN_Weaners 41449449.0 EN_lwt*1000*KG_Weaners (2,1,1,1,1,na) 1.07 Uncertainty. Total calorific value (kcal) of Weaners.
Elec_use 2112.807717 Elec*Cows (1,1,1,1,1,na) 1.05 Uncertainty. Whole farm electricity use (kWh)
BioC_all__corr_CulledBreeders 1060.2518403915383 BioC_Actual_CulledBreeders-BioC_CurrentAll_CulledBreeders This is the correction to the biogenic carbon required to balance the biogenic carbon for culled breeders in kg C.
ID_tags 20175.0 Calves_weaned*ID_tag (2,1,1,1,1,na) 1.07 Uncertainty. Weight of ID tags total (g)
KM_Cattle 110.0 — (1,1,1,1,1,na) Estimate of transport distance for purchased bulls (km). See Durr et al. 2010 at https://www.researchgate.net/publication/287990558_GIS_mapping_of_cattle_market_service_areas_using_the_National_Livestock_Identification_System_NLIS_-_Final_report
All_CulledBreeders_Eco 23.414662016686812 (KG_CulledBreeders*P_CulledBreeders)/(P_PrimeCattle*KG_PrimeCattle+P_CulledBreeders*KG_CulledBreeders+KG_Weaners*P_weaners)*100 (2,1,1,1,1,na) 1.07 Uncertainty. Economic allocation fraction for Culled cattle (%) - default for AusLCI
PUR_Bulls 7224.84 PUR_Bulls_WT*PUR_Bulls_NO (2,1,1,1,1,na) 1.07 Uncertainty. Total liveweight of replacement bulls purchased each year (kg)
AF_Hay -0.7 — Acid factor for hay (kMol/kg) based on (Slatery et al.).
KM_Protein_pellets 600.0 — (3,1,1,1,1,na) Estimate of transport distance for protein_pellets (km)
BioC_Actual_Weaners 2307.5175674100005 kg_Weaners*DM_Livecattle*CC_Livecattle The actual amount of biogenic carbon which should be allocated weaners in kg C.
N_LeachGW 2221.7123469999997 TotN_LeachGW-(TotN_LeachGW*EFN_Leach) (2,1,1,1,1,na) 1.4 Uncertainty. N leached to ground water adjusted for N loss from N2O (kg).
CC_Copra 0.45 — (2,3,1,1,1,na) Carbon content of 0.5 as DM
Pro_Weaners 1069.6632000000002 KG_Weaners*PC_Lwt*EFF_P_Lwt (2,1,1,1,1,na) 1.07 Uncertainty. Total protein requirement to produce Weaners (kg)
DM_Molasses 0.825 — Dry matter fraction of molasses
Pro_Total 24083.371519999997 Pro_CulledBreeders+Pro_PrimeCattle+Pro_Weaners (2,1,1,1,1,na) 1.07 Uncertainty. Total protein requirment for all coproducts leaving the farm (kg)
Elec 2.113 — (1,1,1,1,1,na) Electricity (kWh/Cow mated) calculated from economic data reported in farm survey data from ABARES for 2018-2022 (https://www.agriculture.gov.au/abares/data/farm-data-portal).
P_CulledBreeders 2.633 — (1,1,1,1,1,na) Average price for National Processor Cow Indicator ($/kg live weight sold) from MLA https://www.mla.com/prices-markets/statistics/ for 5 year period 2019 - 2024.
ID_tag 25.0 — (2,1,1,1,1,na) Weight of plastic ID tag individual (g)
DMI 6543967.272 — (2,1,1,1,1,na) kg Dry matter intake. Calculated using GAFF Beef and Sheep based on National Inventory Report 2021. Volume 1.
KM_Molasses 400.0 — (3,1,1,1,1,na) Estimate of transport distance for molasses (km)
ProductTotal 301042.144 KG_PrimeCattle+KG_CulledBreeders+kg_Weaners (2,1,1,1,1,na) 1.07 Uncertainty. Total production of cattle from this process (kg live weight)
AF_Molasses — — Acid factor for molasses (kMol/kg) based on (Baldock et al. 2009).
AF_Wet_mix — — Acid factor for urea (kMol/kg) assuming 30% urea in wet season mix, based on (Baldock et al. 2009).
DAM_CH4 1831.88478 DAM_CH4_ha*HA_GRAZING (2,1,1,1,1,na) 1.07 Uncertainty. Total methane emissions form darm dams (kg) (excluding manure fraction which is counted elsewhere)
All_PrimeCattle_Mass 70.18166233894482 kg_PrimeCattle/ProductTotal*100 (2,1,1,1,1,na) 1.07 Uncertainty. Mass allocation fraction for Prime cattle (%)
P_Weaners 4.33 — (1,1,1,1,1,na) Average price for Restocker Yearlings (Heifers and Steers) ($/kg live weight sold) from MLA https://www.mla.com/prices-markets/statistics/ for 5 year period 2019 - 2024.
PR_fert 1.0 — Proportion of grazed area fertilsed with single superphosphate
BiogenicCO2 — Soil_C_loss*3.667*HA_GRAZING*0 (2,1,1,1,1,na) 1.5 Uncertainty. Total SOC change in units of CO2-eq
KM_Copra 600.0 — (3,1,1,1,1,na) Estimate of transport distance for copra (km)
Fuel_use 646.9411230000001 Fuel*Cows (1,1,1,1,1,na) 1.05 Uncertainty. Whole farm fuel use (L)
DM_Dry_mix 0.9 — Dry matter fraction of dry season mix
ATMOS_N2O 51.148 — (2,1,1,1,1,na) kg N2O from N deposited from atmosphere. Calculated using GAFF Beef and Sheep based on National Inventory Report 2021. Volume 1.