two more major changes introduction of cattle tracing system data and review of tiff methodology

16
Two more major changes Introduction of Cattle Tracing System data and Review of TIFF methodology

Upload: virgil-griffin

Post on 16-Dec-2015

213 views

Category:

Documents


0 download

TRANSCRIPT

Page 1: Two more major changes Introduction of Cattle Tracing System data and Review of TIFF methodology

Two more major changes

Introduction of Cattle Tracing System dataand

Review of TIFF methodology

Page 2: Two more major changes Introduction of Cattle Tracing System data and Review of TIFF methodology

Agricultural Census

• Main survey at start of June, smaller survey at start of December

• Database of all agricultural holdings in Scotland

• Data covers• land use• crops grown• livestock numbers• ownership/tenancy of land• employment• machinery

• Cattle• split into 22 categories by age, sex and

dairy/beef• also 8 categories on numbers bought/sold in

last year

Page 3: Two more major changes Introduction of Cattle Tracing System data and Review of TIFF methodology
Page 4: Two more major changes Introduction of Cattle Tracing System data and Review of TIFF methodology

History of the Cattle Tracing System

• UK and EU efforts to improve confidence in beef following the BSE outbreak.

• computerised system launched in GB in Sept 1998 (already one in NI).• EU requirement by the end of 1999.• run by the British Cattle Movement Service (BCMS), based in Workington -

part of DEFRA.

How it works• cattle registered to farm at birth.• ear-tagged with unique ID number, electronic and “paper passport”.• recorded each time moved.• recorded at death.• able to trace exact whereabouts of each animal at any point (in theory)• …so able to trace where it’s been in event of disease outbreak.• DEFRA fill in any gaps in life histories.

Page 5: Two more major changes Introduction of Cattle Tracing System data and Review of TIFF methodology

How do the data compare?

• 50,000 cattle in 1.8 million (about 3%)• consistently more in CTS than in the census

2008 2009 2010 2011 20120

200,000

400,000

600,000

800,000

1,000,000

1,200,000

1,400,000

1,600,000

1,800,000

2,000,000

cens

us

cens

us

cens

us

cens

us

cens

usC.T.

S.

C.T.

S.

C.T.

S.

C.T.

S.

C.T.

S.

head

of c

attle

Page 6: Two more major changes Introduction of Cattle Tracing System data and Review of TIFF methodology

1 cow represents 10,000 cattle

Page 7: Two more major changes Introduction of Cattle Tracing System data and Review of TIFF methodology

Are we OK about these differences?

• CTS notionally 100% coverage (particularly after cleaning), compared to 70% response and rest imputed (dairy farms particularly bad).

• comparison at individual farm level showed bigger differences amongst those with imputed data.

• administrative, legal requirement rather than trusting farm records.• landless cattle owners not included in the census, but are in CTS.• differences not related to any particular category.• does anyone care about the actual number, or is it just the changes?

Any other issues?

• categories not always the same.• no split between dairy and beef – use breed info, then others on farm.• need to change time series.

Any other benefits?

• full data compared to non-response and partial coverage in December.• other data on births, fallen stock, exports and imports, needed for

economic modelling of industry, and on breeds.• reduction in burden on census admin team.• reduction in burden on farmer – on all farms, not just the CAP ones.

Page 8: Two more major changes Introduction of Cattle Tracing System data and Review of TIFF methodology
Page 9: Two more major changes Introduction of Cattle Tracing System data and Review of TIFF methodology
Page 10: Two more major changes Introduction of Cattle Tracing System data and Review of TIFF methodology
Page 11: Two more major changes Introduction of Cattle Tracing System data and Review of TIFF methodology

Review of TIFF methodology

National estimate of total net income across the farming sector, based on outputs, costs and subsidies.

Used in the compilation of Scottish GDP and UK National Accounts.Methodology regulated by EC.

Page 12: Two more major changes Introduction of Cattle Tracing System data and Review of TIFF methodology

income costs0

500

1,000

1,500

2,000

2,500

3,000

3,500

cereals

potatoesother cropshorticulture

finished livestock

store livestock

livestock products

capital formationincome; other agric activities

non-agric activities

subsidies

feedstuffs

seeds

fertilisers and lime

farm maintenance

miscellaneous expenses

FISIMnon-agric activities

consumption of fixed capital

hired labour

net interestnet rent

Page 13: Two more major changes Introduction of Cattle Tracing System data and Review of TIFF methodology

Cereals Use individual yields for different cropsOther crops New seed potato price survey : changes to assumptionHorticulture Price data from SRuC survey : use % change in cereal yield for latest yearFinished livestock Improved prices and assumptions and correct some anomaliesStore livestock Improve calculation of net export income and costsLivestock products Milk quota data for volume, detailed BFREPA data on eggsCapital formation Technical correction to scalingOther activities (see “Expenses” below)

Feed Census data used for scaling up FAS, all pigs included not just finisherSeed & fertiliser Small corrections to modellingExpenses Methodology for estimated costs in horticulture (not in FAS) changed.

Previous use of SGM not viable given improved info on covered crop. DEFRA hort cost and FAS non-hort activities per hectare applied to horticulture, plus SGM-related methodology for non-hort area.

Labour RPI inflator applied to insurance, redundancies, trainingInterest Correction to methodologyRent -

Plus normal updates of first and second estimates

Jan 2013 changes

Page 14: Two more major changes Introduction of Cattle Tracing System data and Review of TIFF methodology

Comparison of 2011 and 2012 published estimates

Largest changesMilk & eggs Use of quota and BFREPA data + £78mCosts Revision to FAS modelling - £77m

2003 2004 2005 2006 2007 2008 2009 2010 2011 20120

100

200

300

400

500

600

700

800

previous

new

£ m

illio

ns

Page 15: Two more major changes Introduction of Cattle Tracing System data and Review of TIFF methodology

Cereals Grass seed & turf prices?Other crops Better estimates for mushroom?Horticulture Better estimates for flows, shrubs, etc.?Finished livestock Full review going on. Also inclusion of CTS dataStore livestock Full review going on. Also inclusion of CTS dataLivestock products Need to work on replacement for milk quotaCapital formation Full review going on. Also inclusion of CTS dataOther activities -

Feed Improve calculation of pig and poultry feedSeed & fertiliser Some assumptions need to be validatedExpenses EC requirement to use standard outputs and revised farm-types will

change weightingsLabour Some improvements in modelling?Interest -Rent Improved tenancy survey data and improved modelling of rental housing

estimatesReworked spreadsheets to make less prone to human errorPlus normal updates of first and second estimatesPublish full documentation

Jan 2014 changes

Page 16: Two more major changes Introduction of Cattle Tracing System data and Review of TIFF methodology

Can you help?

Area of expertise?Check out how we model that areaBetter data sources?