Relationship between clinical mastitis, foot and claw disorders and exterior in Holstein cattle
|Cathegory||Publication in specialized journals|
The paper deals with the genetic relationships between clinical mastitis and foot and claw disorders in Holstein cattle to exterior traits. A dataset included 9 612 cows of Holstein cattle from 7 farms, 1999 and 2015. Three groups of claw disorders were defined: skin diseases; claw disorders and all the recorded disorders, 0/1 occurrence per lactation. Body condition score, stature, angularity, fore udder attachment, rear udder height, udder depth, rear udder width, central ligament, teat length, front teat placement and rear teat position; rear legs rear view, rear leg set (side view), foot angle and locomotion analyzed by linear animal models. Heritability of disease traits were 0.10. Genetic correlations between clinical mastitis (CM0/1; CMP) and fore udder attachment (-0.25, -0.22), udder width (0.21, 0.33) and udder depth (-0, 33; -0.34); body condition score (-0.26; -0.15) and angularity (-0.18; -0.20). The genetic correlations between claw diseases were within the range of 0.03 to 0.46. For skin diseases, the rear legs rear view (-0.35) and to locomotion (-0.46). On the contrary, claw disorders to the rear legs (side view) (0.41) and to the foot angle (-0.25).
Fleischer Petr, MVDr. Ph.D.
Krupa Emil, Ing., Ph.D.
Štípková Miloslava, Ing.
Kašná Eva, Ing., Ph.D.
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