Horses that reside permanently in Denmark must be registered in the Danish national database. In the registration process, a horse must be identified before 12 months of age. Transponders are used in the process, and after that, SEGES issues them a passport.
The breed associations organize activities such as annual evaluation of breeding individuals and animal exhibitions. They are also responsible for keeping the studbooks for their own breed. The purpose of studbooks is to maintain data of horses used for breeding and to determine goals and instructions. The main goal is to use stud books to improve horse populations with breeding selection. In general, the selection goals aim at producing animals that are healthy, easily handled and with good performance.
Population statistics
Currently there are approximately 190 000 horses in Denmark (Hestekongres 2023). Detailed statistics are available on Denmark's database for statistics, which covers horses permanently residing in Denmark. As the demand for work horses has decreased, the sport and leisure breeds have spread throughout the country in recent decades. The dominating breeds in Denmark are competition or leisure horse breeds such as the Danish warmblood and the Icelandic horse. For example, the Danish Icelandic Horse Association has about 3000 members, and a total of about 38 000 Icelandic horses.
Denmark reported 15 horse breeds in DAD-IS; of which three are considered native to Denmark (Table 1). The information in the database dates back to 1983 and the most recent update is from 2023. The third source of numeric data is obtained from the breed associations (personal communication). Figure 1 illustrates the population trends of the native breeds between the 1980’s and 2023. Earlier reported numbers (up until the early 2000’s) are significantly lower than what is reported in the later years (Figure 1). The earlier reported numbers appear to correspond to the number of breeding mares for all the breeds, which could suggest that the population size used to be defined as the number of breeding mares in the population (Figure 1). The numbers reported after the early 2000’s appear to follow the curve of the breeding mares, but is higher, which could reflect a shift in the criteria used for defining population size. Importantly, registration of the three endangered breeds has improved since 2015.