Essays about: "exteriöregenskaper"

Found 3 essays containing the word exteriöregenskaper.

1. 1. Vilken effekt har selektionen på exteriöregenskaper haft på mjölkproduktionen? : Holstein- och jerseykor

   University essay from SLU/Dept. of Animal Breeding and Genetics

   Author : Sofie Persson; [2020]
   Keywords : exteriöregenskaper; mjölkkor; mjölkproduktion; juverexteriör; juverhälsa;

   Abstract : Selektion av mjölkkor har pågått sedan den industriella revolutionen, främst på mjölkproduktionsegenskaper men även på exteriöregenskaper. Tidigare forskning har visat att det finns genetiska samband mellan de olika exteriöregenskaperna, och mellan exteriöregenskaper och mjölkproduktionsegenskaper. READ MORE

3. 2. Genetic correlations among longevity, claw and leg health evaluated in the nordic countries and type traits evaluated in USA, in Holstein Dairy Cattle

   University essay from SLU/Dept. of Animal Breeding and Genetics

   Author : Isabelle Hultdin; [2018]
   Keywords : genetic correlation; type traits; claw and leg health; longevity; Holstein; dairy cattle;

   Abstract : The Holstein breed is known for its high milk yield and this has been achieved partially by genetic selection for yield. As a consequence, functional traits have deteriorated. Claw and leg disorders are common reasons for involuntary culling: 8.4% to 8. READ MORE

4. 3. Genetic correlation between feet and leg type traits and claw health in Swedish dairy cattle

   University essay from SLU/Dept. of Animal Breeding and Genetics

   Author : Emelie Uggla; [2008]
   Keywords : genetic variation; claw diseases; dairy cattle;

   Abstract : With the rapid increase in herd size over the last decade, it is imperative in modern dairy cattle farming to work for good claw health, both from an economic and animal welfare point of view. Claw health is maintained by managemental and genetical pre-cautions. Poor claw health may result in lameness (Murray et al,. 1996). READ MORE