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Denmark
Livestock surveys
Surveys on the number of pigs
In Denmark five surveys on the number of pigs are carried out per year, namely in January, April, May, July and October. The surveys carried out in January, April, July and October are separate pig censuses, while the surveys carried out in May are integrated agricultural surveys.
All the surveys are sample surveys. The last full survey on the number of pigs was carried out in 1999. The average sampling error is 1.0 %. All the pig population is included into the sample surveys.
5.000 farms are drawn from the Register of Agricultural Statistics. When the farms are selected, they are divided into 14 strata according to the total number of pig at the farm. Random sample is then drawn for each stratum. The selection method is optimum, i.e. the strata of the total sample are divided so that the variance of the estimated total number of pigs is minimised.
By the sample survey 5.000 farms are recorded which is 7 % of all farms breeding pigs. All the pig population is included into the sample frame. The 5.000 farms in the sample breed 50 % of the total pig population.
Denmark does not carry out the surveys in selected regions.
The data are obtained by written inquiries. The average response rate achieved is 90 %. Analyses have shown that the non response rate has no significant affect on the survey results. Statistics Denmark is responsible for carrying out the surveys.
Denmark does not plan to use administrative data instead of statistical surveys within the next 5 years.
Surveys on the number of cattle
In Denmark two surveys on the number of cattle are carried out per year, namely in May and December. The surveys carried out in May are integrated agricultural surveys while surveys carried out in December are separate cattle censuses.
All the surveys are sample surveys. The last full survey on the number of cattle was carried out in 1999.The average sampling error in the recent years is 1.2 %. All the cattle population is included into the sample survey.
3.000 farms are drawn from the Register of Agricultural Statistics. When the farms are selected, they are divided into 14 strata according to the total number of cattle at the farm. Random sample is then drawn for each stratum. The selection method is optimum, i.e. the strata of the total sample are divided so that the variance of the estimated total number of cattle is minimised.
By the sample survey 3.000 farms are recorded which is 4 % of all farms breeding cattle. All the cattle population is included into the sample frame. 3.000 farms in the sample breed 17 % of the total cattle population.
Denmark does not carry out the surveys in selected regions.
The data are obtained by written inquiries. The average response rate achieved is 90 %. Analyses have shown that the non-response rate has no significant affect on the survey results. Statistics Denmark is responsible for carrying out the surveys.
For the first time the stock of cattle was estimated on the basis of data from the Central Register of Livestock instead of the traditional sample surveys on 31 December 2000. The primary data used in compiling the statistics on the stock of cattle are extracted from Register of Agricultural Statistics, which is updated annually on the basis of the agricultural and horticultural survey, the municipal property registers, the General Register of Agricultural Statistics, and the Central Register of Livestock.
The Central Register of Livestock is maintained by the Ministry of Food, Agriculture and Fishery and the Cattle Database is maintained by the Agricultural Advisory Centre and the Danish Association of Cattle Breeders.
The Central Register of Livestock can be used for several purposes, but the actual purpose of the register was to assist in preparing health programmes. The Cattle Database is a major system, which primarily serves cattle breeders with a view to achieving a sound operation of their farms. Data from the Cattle Database are used in updating the Central Register of Livestock.
The register consists of information on number, birthday and sex of each individual animal for several types of farm, e.g. dairy cows and cows for meat production, and to this is added a range of identification numbers.
The register is updated on the basis of weekly reports of data by cattle breeders with respect to increase and decrease of cattle, and information by suppliers and purchasers. Furthermore, the decrease of livestock for slaughter is verified by the slaughterhouses and livestock dead from disease or accident by the destruction plants.
Statistics Denmark extracts data from the Cattle Database with respect to age of heifers and gestation of each individual animal.
However, as none of the registers has been established for the purpose of replacing the surveys of cattle, it has been necessary to carry out comprehensive analytical work to create a link between the cattle registers and Statistics Denmark register system for agricultural statistics.
Surveys on the number of sheep and goats
In Denmark one survey on the number of sheep is carried out per year, while there are no surveys on the number of goats. The survey on sheep is carried out in May. All the surveys on the number of sheep are integrated agricultural surveys.
All the surveys on the number of sheep are sample surveys. The average sampling error is 14 %. The last full survey on the number of sheep was carried out in 1999.
The number of sheep is obtained within the integrated agricultural survey. Stratification is based on economic size, farm size and geographical location. The selection method is optimum; i.e. the strata of the total sample are divided so that the variance of the estimated totals is minimised.
All the sheep population is included into the sample frame. By the sample survey 4.000 farms are recorded which represents 6 % of all farms breeding sheep.
The survey on the number of sheep in May is carried out in selected regions, namely in all counties.
The data are obtained by written inquiries. The average response rate achieved is 100 %. Statistics Denmark is responsible for carrying out the surveys.
Denmark does not plan to use administrative data instead of statistical surveys within the next 5 years.
Statistics on slaughterings
Monthly slaughtering data are available in Denmark on the number and slaughterweight for pigs overall, calves, heifers, cows, bulls, bullocks, sheep overall and lambs.
Availability of monthly data on slaughterings
Weight
Statistics Denmark receives figures (in number and weight) from the Veterinarian control for the totals. The slaughterhouses send in the statistics broken down on 7 groups for cattle, 6 groups for pigs, 5 groups for poultry, 3 groups for sheep and lambs and 3 groups for horses. The figures are normally received 3 week of the month provisional and 6 weeks for the final figures.
Data on external trade in live animals
Statistics Denmark receives monthly figures from companies which yearly imports from EU countries exceeds 1.5 Mio DKK (about 201 300 €) and exports which exceeds 2.5 Mio DKK (about 335 500 €).
The figures are available 6 weeks after the reference month. The categories are more detailed than wished in the Directives.
Production forecasts (gross indigenous production)
The methods used are pipe-line models which reach 10 - 12 months for pigs and 1,5 - 2 years for cattle and one year for sheep and lambs. The number consists of:
Poultry statistics
Statistics Denmark receives quarterly figures on slaughtering of (Number and dressed carcassweight):
The figures received are the totals in slaughterhouses. Furthermore a quantity for direct sale and own consumption is added. Forecasts have up to now been of a poor quality. An econometric model will probably be of a higher quality than the normal based on incubation.