Eggs for hatching and chicks

National Reference Metadata in Single Integrated Metadata Structure (SIMS)

Compiling agency: Ministry of agriculture


Eurostat metadata
Reference metadata
1. Contact
2. Metadata update
3. Statistical presentation
4. Unit of measure
5. Reference Period
6. Institutional Mandate
7. Confidentiality
8. Release policy
9. Frequency of dissemination
10. Accessibility and clarity
11. Quality management
12. Relevance
13. Accuracy
14. Timeliness and punctuality
15. Coherence and comparability
16. Cost and Burden
17. Data revision
18. Statistical processing
19. Comment
Related Metadata
Annexes (including footnotes)



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1. Contact Top
1.1. Contact organisation

Ministry of agriculture

1.2. Contact organisation unit

Agrostatistics Department, DG Agricilture and regional policy

1.5. Contact mail address

Bulgaria,Sofia - 1040,bul."Hristo Botev"No55


2. Metadata update Top
2.1. Metadata last certified 31/01/2022
2.2. Metadata last posted 19/06/2023
2.3. Metadata last update 19/06/2023


3. Statistical presentation Top
3.1. Data description

Statistics on eggs for hatching and farmyard poultry chicks are collected under (market) Regulation (EC) No 617/2008. They are the earliest available information to foresee production of poultry meat and eggs, as the numbers of chicks of various utilities placed in the farms of each Member State, i.e. the number of chicks placed by the hatcheries of this Member State increased by the net import of chicks.

The survey of poultry in Bulgaria was introduced in 2004 by the Ministry of Agriculture and Food and covers the following species: chickens, turkeys, ducks, geese, quail, ostrich and guinea fowl as well as the production of their products - eggs and poultry for slaughter.
The intention of the survey is to provide information on the poultry number, the species and categories on December 31, the production of eggs and poultry for slaughter in the observed calendar year. The survey is based on a representative sample of poultry farms, which grow one or more poultry species.
Definition and sources of information
The statistical survey covers units defined as farms under the Law on Agricultural Census in Bulgaria in 2010 and grow one or more types of poultry. The survey is implemented locally by experts on agricultural statistics in Regional Directorate "Agriculture". They conduct interviews with farmers and complete statistical questionnaires on poultry for each farm.
Main statistical indicators
1. Stocking: Laying hens (utility and parents), chickens for meat, turkeys, ducks, geese, quail, ostrich and guinea fowl on December 31.
2. Produced eggs by species and type of use – for consumption, for breeding (laying hens, meat and dual-purpose) during the previous calendar year.
3. Number of realized poultry (hens, pullets and birds fattened) - submitted to the slaughterhouses, slaughtered on the farm, live poultry sold in the previous calendar year.
Scope, model and sample size
The sample of farms with poultry is stratified and provides the necessary coverage in the studied species.
The sample was compiled from a list of poultry farms surveyed during the agricultural census in 2010. Farms were divided into six groups according to specialization (type of poultry):
- Specialized farms with laying hens;
- Specialized farms with chickens for meat (broilers);
- Specialized farms with other birds;
- No specialized farms (growing more than one kind of poultry);
- Small poultry farms, growing to 10 birds;
- Large holdings surveyed exhaustively;
- New farm (created after 2010).
Each group was divided into subgroups - 13 subgroups (strata) based on the number of poultry in them x 28 districts (NUTS3) = 364 strata total.
In a survey in 2017, the sample include 3027 farms, covering 2.7% of all farms with birds (109.6 thousand poultry farms total) and 93% of all birds. The data are representative on the NUTS2 level 6 statistical regions.
Hatcheries statistics
Activity of hatcheries - eggs for hatching placed in incubation and realized chicks.
Bulgaria collects monthly data from all hatcheries (exhaustively) in the country. The collected data concerns the number of eggs placed for hatching by type – chicks, turkeys, geese, ducks, etc., and by destination - laying hens, meat type chicken, regarding the number of realized chicks from hatcheries (whether placed for growing in farms, which belongs to the hatchery, or sold for breeding to other farms within the country, or exported for breeding outside the country).

Eurostat uses the data for foreign trade of chicks for Bulgaria directly from the Comext database. Comext is filled and loaded by the responsible institution for foreign trade statistics in Bulgaria - NSI.

3.1.1. Model description

Monthly exhaustive survey 

All hatcheries that placed more than 1000 eggs per year are interviewed.

 Customs declarations from all customs offices are entered in the Bulgarian Integrated Customs Information System. Monthly, based on a bilateral agreement with Customs Agency, NSI receives primary data necessary for the compilation of foreign trade statistics.

Intrastat declarations are entered in the information system "Intrastat" of NRA. Monthly, according to the Instruction for information exchange between NSI and the NRA developed in implementation of the Law on Statistics of Intra-Community Trade in goods, NSI receives primary file with records of all Intrastat declarations

3.2. Classification system

Regulation (EC) No 617/2008

Combined Nomenclature

The detailed statistical information is collected on commodity level of the aplicable for the reference year Combined Nomenclature (CN8) and data are prepared and disseminated also on higher levels of aggregation sub-headings (6-digits), headings (4-digits)

3.3. Coverage - sector

Information not collected in 2021.

3.4. Statistical concepts and definitions

See details by data set under 3.4.1.1, 3.4.1.2, 3.4.1.3 and 3.4.1.4.

3.4.1. Definition of chicks categories (TC)
At least some differences
3.4.2. Definition of chicks categories (AH)
At least some differences
3.4.3. Scope of intra-EU and extra-EU trade (TC)
At least some differences
3.4.4. Other concept or definition (TC/AH/SH)
At least some differences
3.5. Statistical unit

See details by data set under 3.5.1, 3.5.2 and 3.5.3.

3.5.1. Statistical units identified

Not applicable

3.5.1.1. Statistical units for hatchery statistics

Hatcheries that placed 1000 eggs per year

3.5.1.2. Statistical units for imported chicks

Imports/arrivals include all goods entering the statistical territory of the Republic of Bulgaria from other countries and are for consumption in the country, for processing in the country with the purpose to be exported/dispatched to another country after processing, and also imports/arrivals of goods after processing outside the country.

3.5.1.3. Statistical units for exported chicks

Exports/dispatches include all goods leaving the statistical territory of the Republic of Bulgaria and are for normal export to another country. It covers also goods returned to the trade partner after processing in Bulgaria or exported/dispatched goods sent for processing in another country in order to be returned back to the Republic of Bulgaria.

3.5.2. Hatcheries with seasonal activity

Not applicable

3.5.2.1. Hatcheries with seasonal activity (AH)
Included
3.5.2.2. Hatcheries with seasonal activity (TC)
Included
3.5.2.3. Hatcheries with seasonal activity (SH)
Included
3.5.2.4. Further explanations (TC/AH/SH)

No further explanation

3.5.3. Thresholds

Not applicable

3.5.3.1. Thresholds for hatchery statistics

Exhaustively

3.5.3.2. Thresholds for imported chicks
470000 BGN -  trade operators are exempted from obligation to provide Intrastat declarations for arrivals if ther trade is bellow the threshold.
Small individual transactions bellow 390 BGN are coded under the CN code 9950 00 00.
3.5.3.3. Thresholds for exported chicks (if different)

290000 BGN - trade operators are exempted from obligation to provide Intrastat declarations for dispatches if ther trade is bellow the threshold.
Small individual transactions bellow 390 BGN are coded under the CN code 9950 00 00.

3.6. Statistical population

See details by data set under 3.6.1, 3.6.2 and 3.6.3.

3.6.1. Source of the list of statistical units (AH)

Statistical survey - Poultry breeding in Bulgaria

Registry of Bulgarian food safety agensy

The list of hatcheries has been compiled on the basis of a statistical survey of poultry in Bulgaria and is periodically updated with information from the register of the hatcheries maintained by the Bulgarian food safety agency (BFSA)

3.6.2. Source of the list of statistical units (TC)

Any natural and legal person lodging a customs declaration is reporting to the extra-EU trade statistics on the condition that the customs procedure is of statistical relevance.
Within intra-EU trade statistics any taxable person carrying out an intra-EU trade transaction is responsible for providing the information. However small and medium trade operators are exempted from obligation to provide Intrastat declarations. Each year thresholds are defined which allows intra-EU traders not to report on their transaction or provide less detailed information on condition that their total trade value does not exceed a certain amount during the previous or current calendar year. However, quality standards are assured when determining the thresholds.

3.6.3. Source of the list of statistical units (SH)

The list of statistical units is based on a statistical survey - Poultry breeding in Bulgaria, conducted every year by the Agrostatistics department. This survey covers all the hatcheries with activity during the year. The ones placing up to/over 1000 eggs are observed monthly.

We also use the Register of the Bulgarian food safety agency to update the list of statistical units.

3.7. Reference area

Information not collected in 2021

3.8. Coverage - Time

Information not collected in 2021

3.9. Base period

Not applicable.


4. Unit of measure Top

See details by data set under 4.1, 4.2, 4.3, 4.4 and 4.5.

4.1. Number of eggs placed (AH)

112 867289 total number of eggs (accurate number) 

4.2. Number of chicks hatched (AH)

79 299 101 total chicks (accurate number) 

4.3. Number of chicks (TC)

23 580 752 ( accurate number) - the data includes intra and extra export and import

4.4. Capacity (SH)

The number of incubator places for eggs of the major egg species that the hatchery handles is 13 484848 (accurate number)

4.5. Number of hatcheries (SH)

22 Hatcheries (accurate number)


5. Reference Period Top

See details by data set under 5.1, 5.2 and 5.3.

5.1. Reference period (AH)

Calendar month

5.2. Reference period (TC)

Theoretically, the reference period for the information on international trade in goods transactions should be the calendar month of export or import of the goods. However, in practice the reference period for extra-EU trade is generally the calendar month during which the customs declaration is accepted by customs authorities. The reference period for intra-EU trade may be adapted in case of sales or purchases to the calendar month during which the VAT on the intra-EU supplies or acquisitions becomes chargeable. The chargeable event relates to the issue date of the invoice.

5.3. Reference period (SH)

Calendar year


6. Institutional Mandate Top
6.1. Institutional Mandate - legal acts and other agreements

Information not collected in 2021.

6.1.1. National legal acts and other agreements
Yes
6.1.2. Legal reporting obligation
Yes
6.1.3. Legal text/ additional explanations

Regulation (EC) 617/2008

National statistical programme 

6.2. Institutional Mandate - data sharing

A Memorandum of Understanding  between the NSI and the MAFF defining the responsibilities for the production of statistical information on agriculture, as well as an Agreement on information exchange and strategic partnership.


7. Confidentiality Top
7.1. Confidentiality - policy

See details by data set under 7.1 and 7.2.

7.1.1. Part of the national statistical system
Yes
7.1.2. Further explanations

Statistics Act

7.2. Confidentiality - data treatment

Statistical data, which summarizes the information on less than three statistical units or for a statistical unit in which the relative share of the value of the observed characteristic of the unit is over 85 per cent of the total value of this characteristic for all the units in the population is not published.


8. Release policy Top
8.1. Release calendar

Information not collected in 2021

8.2. Release calendar access

Information not collected in 2021

8.3. Release policy - user access

Information not collected in 2021


9. Frequency of dissemination Top

The data of the statistical survey - Activity of hatcheries is published monthly


10. Accessibility and clarity Top
10.1. Dissemination format - News release

Information not collected in 2021

10.2. Dissemination format - Publications

Monthly Data table

10.3. Dissemination format - online database

 

 



Annexes:
Monthly data
10.3.1. Data tables - consultations

Information not collected in 2021

10.4. Dissemination format - microdata access

Information not collected in 2021

10.5. Dissemination format - other

Information not collected in 2021

10.5.1. Metadata - consultations

Information not collected in 2021

10.6. Documentation on methodology

The methodological notes are disseminated with the data results of statistical survey "Poultry breeding in Bulgaria". 



Annexes:
BG-Metadata_Poultry_Hatcheries_2020
BG-PublicationPoultry_2020
10.6.1. Metadata completeness - rate

Information not collected in 2021

10.6.2. Attached methodology can be disseminated
Yes
10.7. Quality management - documentation

Information not collected in 2021


11. Quality management Top
11.1. Quality assurance

Information not collected in 2021

11.2. Quality management - assessment

Information not collected in 2021


12. Relevance Top
12.1. Relevance - User Needs

On the pointed link below  could be seen the questionnaire which ensures users's needs and requirements, if they directly express their opinion or participate in the further improvement of our statistical information and the services to provide.



Annexes:
BG-User Need
12.1.1. EU data sets -Activity of hatcheries
All
12.1.2. EU data sets -Trade of chicks
All
12.1.3. EU data sets -Structure of hatcheries
All
12.1.4. Other indicators -Number of chicks placed
Disseminate
12.1.5. Other indicators -Egg production forecast
No
12.1.6. Other indicators -Poultry meat production forecast
No
12.2. Relevance - User Satisfaction

Information not collected in 2021

12.3. Completeness

Information not collected in 2021

12.3.1. Data completeness - rate

Information not collected in 2021


13. Accuracy Top
13.1. Accuracy - overall

Information not collected in 2021.

13.2. Sampling error

Information not collected in 2021

13.2.1. Sampling error - indicators

Information not collected in 2021

13.3. Non-sampling error

See details by data set under 13.3.1, 13.3.2, 13.3.3, 13.3.4 and 13.3.5.

13.3.1. Coverage error

Information not collected in 2021

13.3.1.1. Over-coverage - rate

Information not collected in 2021.

13.3.1.2. Common units - proportion

Information not collected in 2021.

13.3.2. Measurement error

Information not collected in 2021.

13.3.3. Non response error

Information not collected in 2021.

13.3.3.1. Unit non-response - rate

      

 

13.3.3.1.1. Type of data collection (AH)
Census
13.3.3.1.2. Type of data collection (TC)
Census
13.3.3.1.3. Type of data collection (SH)
Census
13.3.3.1.4. Response rate (%) (AH)

100%

13.3.3.1.5. Response rate (%) (TC)

Shares of the collected 2020 data for the trade with the EU are 94.3% for arrivals and 98.0% for dispatches.

13.3.3.1.6. Response rate (%) (SH)

100%

13.3.3.1.7. Treatment of unit non-response

not applicable

13.3.3.1.8. Further explanations on non-response error

No further explanation

13.3.3.2. Item non-response - rate

Information not collected in 2021.

13.3.4. Processing error

See details by data set under 13.3.4.1, 13.3.4.2, 13.3.4.3, 13.3.4.4, 13.3.4.5, 13.3.4.6, 13.3.4.7, 13.3.4.8, 13.3.4.9, 13.3.4.10, 13.3.4.11, 13.3.4.12, 13.3.4.13, 13.3.4.14, 13.3.4.15 and 13.3.4.16.

13.3.4.1. Unit conversion (AH)
Yes: Manual
13.3.4.2. Unit conversion (TC)
No
13.3.4.3. Unit conversion (SH)
Yes: Manual
13.3.4.4. Time accumulation (AH)
Yes: Manual
13.3.4.5. Time accumulation (TC)
Yes: Automated
13.3.4.6. Time accumulation (SH)
Yes: Automated
13.3.4.7. Adjustment / Application of technical coefficient (AH)
No
13.3.4.8. Adjustment / Application of technical coefficient (TC)
No
13.3.4.9. Adjustment / Application of technical coefficient (SH)
No
13.3.4.10. Other treatment / Further explanations (AH)

There are controls and functions developed in information system for agrostatistics (ISAS) for prechecking the logical data entry.

13.3.4.11. Other treatment / Further explanations (TC)

not applicable

13.3.4.12. Other treatment / Further explanations (SH)

The structure of Hatcheries is conducted by monthly data available in the information system for agrostatistics (ISAS).

13.3.4.13. Hatched chicks include exported chicks
Yes
13.3.4.14. ‘Almost hatched’ chick eggs: presence
Yes
13.3.4.15. ‘Almost hatched’ chick eggs: treatment

No specific treatment

13.3.4.16. Other treatment / Further explanations (SH)

We exclude statistical units if it placed less than 1000 eggs per year.

13.3.5. Model assumption error

See details by data set under 13.3.5.1, 13.3.5.2, 13.3.5.3, 13.3.5.4 and 13.3.5.5.

13.3.5.1. Model-based statistics AH
No
13.3.5.2. Over-coverage by model
Other
13.3.5.3. Parameter update frequency

Not applicable

13.3.5.4. Ground comparison frequency

Not applicable

13.3.5.5. Model-based statistics (TC, SH)

Not applicable


14. Timeliness and punctuality Top
14.1. Timeliness

Information not collected in 2021

14.1.1. Time lag - first result

Information not collected in 2021

14.1.2. Time lag - final result

Information not collected in 2021

14.1.3. Deadline for respondents (AH)

25th of the current month for the data from the previous month

14.1.4. Deadline for respondents (TC)

The deadline for submission of Intrastat declarations is 14 calendar days after the reference month. For the PSI submitting Intrastat declaration for the first time the deadline is 20 calendar days.

14.1.5. Deadline for respondents (SH)

25th of the current month for the data from the previous month

14.2. Punctuality

Information not collected in 2021

14.2.1. Punctuality - delivery and publication

Information not collected in 2021


15. Coherence and comparability Top
15.1. Comparability - geographical

Information not collected in 2021

15.1.1. Asymmetry for mirror flow statistics - coefficient

Information not collected in 2021

15.2. Comparability - over time

Information not collected in 2021

15.2.1. Length of comparable time series

Information not collected in 2021

15.3. Coherence - cross domain

Information not collected in 2021

15.3.1. Coherence - sub annual and annual statistics

Information not collected in 2021

15.3.2. Coherence - National Accounts

Information not collected in 2021

15.4. Coherence - internal

Information not collected in 2021


16. Cost and Burden Top

Information not collected in 2021


17. Data revision Top
17.1. Data revision - policy

Information not collected in 2021

17.2. Data revision - practice

Information not collected in 2021

17.2.1. Data revision - average size

Information not collected in 2021


18. Statistical processing Top
18.1. Source data

Statistical units - hatcheries 

18.2. Frequency of data collection

Information not collected in 2021 (see S.5.1 reference period)

18.3. Data collection

See details by data set under 18.3.1, 13.3.2 and 18.3.3.

18.3.1. Main way (AH)

The main sources of information is the statistical questionnaire which is applicabled in the information system for agrostatistics (ISAS) for data entry. The respondents could fill in the information online by themselves or they could be interviewed by a regional expert.

18.3.2. Main way (TC)

The main sources of information are:
· Customs declarations completed by all entities engaged in import or export of goods from/to third countries;
· Intrastat declarations for arrivals and dispatches of goods from/to countries of the European Union;
Customs Agency is the institution responsible for the collection of customs declarations and the National Revenue Agency - for Intrastat declarations.

18.3.3. Main way (SH)

The structure of hatcheries survey is filled in by monthly data.

18.4. Data validation

Information not collected in 2021

18.5. Data compilation

The hatcheries are surveyed exhaustively. There are non-response. 

18.5.1. Imputation - rate

Information not collected in 2021

18.6. Adjustment

Information not collected in 2021

18.6.1. Seasonal adjustment

Information not collected in 2021


19. Comment Top

None


Related metadata Top


Annexes Top
BG_ActivityofHatcheries-Questionnaire-2020
BG-PublicationPoultry_2020
BG-Metadata_Poultry_Hatcheries_2020