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Søren Østergaard

Effect of including genetic progress in milk yield on evaluating the use of sexed semen and other reproduction strategies in a dairy herd

Publikation: Bidrag til bog/antologi/rapport/proceedingKonferencebidrag i proceedingsForskning

Dokumenter

  • HBS, Produktions- og Sundhedsstyring i Besætninger
  • Institut for Husdyrbiologi og -sundhed

Herd simulation modelling has been recognized as a relevant method to study reproduction management strategies in a dairy herd (Dijkhuizen et al., 1997; Marsh et al., 1987; Østergaard et al., 2005a). These models estimate the technical and economic effects of certain replacement and breeding strategies based on the phenotypical states of the individual animals over a number of years. Typically, the genetic levels of replacement heifers in these models

are not different from those of the culling candidates in the herd; continuous genetic improvement in the population is ignored. The importance of including genetic progress when evaluating reproductive strategies with simulation models has not been explored. Improved reproductive efficiency does allow a higher selection intensity of which cows to stay in the herd and give birth to own young stock.

OriginalsprogEngelsk
TitelFarm Animal Health Economics
Udgivelsesår2010
Sider80-88
StatusUdgivet - 2010
BegivenhedInternational workshop held at Nantes-Atlantic NationalCollege of Veterinary Medicine, Food Science andEngineering (ONIRIS)14-15 January 2010 - Nantes, Frankrig
Varighed: 14 jan. 201015 jan. 2010

Konference

KonferenceInternational workshop held at Nantes-Atlantic NationalCollege of Veterinary Medicine, Food Science andEngineering (ONIRIS)14-15 January 2010
LandFrankrig
ByNantes
Periode14/01/201015/01/2010

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