There are about 400 commercial goat herds in the Netherlands, with 100 to 800 does per herd. In total there are in the Netherlands about 70,000 does which are producing about 40 million kg of milk (De Groot et al., 1999). About 200 herds are participating in a three to six weekly milk-recording scheme. About half of the records are projected or realised 305-day yields, the other records are realised lactation yields with different lactation lengths. The different goat breeds that are used for milk production are mainly the White Milk goat, but also the Toggenburger goat, Alpine goat, Spotted goat and the Nubian goat. The dairy goat industry did not have enough tools to improve milk production of does by selection until 2000. A genetic evaluation for dairy goats provides farmers the possibility to optimise the breeding programme for goats and to select the best bucks and does of the population. Since July 2000 genetic evaluation for dairy goats is routinely carried out twice a year in the Netherlands. The objective of this paper is to show the state of the art for the genetic evaluation of dairy goats in the Netherlands and to present a way to deal in the genetic evaluation with standardised and realised lactation yields with different lactation lengths.
Proceedings of the World Congress on Genetics Applied to Livestock Production, Volume 2002. Session 1, , 1.84, 2002
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