Evaluation of arterial digital blood flow in dairy cows with claw horn disruption lesions using Doppler ultrasonography.

Müller, H; Heinrich, M; Mielenz, N; Reese, S; Steiner, Adrian; Starke, A (2019). Evaluation of arterial digital blood flow in dairy cows with claw horn disruption lesions using Doppler ultrasonography. Journal of dairy science, 102(10), pp. 9213-9223. American Dairy Science Association 10.3168/jds.2018-15882

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Vascular changes play an important role in the pathogenesis of claw horn disruption lesions in cattle. The aim of the study was to measure arterial blood flow in the hind limbs of German Holstein cows with claw horn disruption lesions. A 10-MHz linear transducer was used to assess blood flow in the interdigital artery in the dorsal pastern region in the hind limbs of 11 non-lame and 33 lame German Holstein cows in which lameness was scored clinically. Qualitative and quantitative blood flow parameters were compared in affected limbs and unaffected contralateral hind limbs in lame cows and in the hind limbs of lame cows and non-lame cows. A pulsed-wave Doppler signal suitable for analysis was obtained in 78 of 88 limbs (33 affected and contralateral limbs, 22 limbs of control cows). Blood flow curve types 1 and 2 were predominant in the hind limbs of lame cows. Vessel diameter, end-diastolic velocity, and blood flow rate were significantly greater in lame cows than in non-lame cows and were numerically greater in moderately lame cows than in mildly lame cows. The differences in the qualitative and quantitative parameters between lame and non-lame cows were most likely caused by inflammation of the pododerm. The role of weight distribution between the paired hind limbs and the existence of claw horn disruption appeared to have an effect on the differences in local circulation in the affected and unaffected contralateral hind limbs in lame cows.

Item Type:

Journal Article (Original Article)

Division/Institute:

05 Veterinary Medicine > Department of Clinical Veterinary Medicine (DKV)
05 Veterinary Medicine > Department of Clinical Veterinary Medicine (DKV) > Clinic for Ruminants

UniBE Contributor:

Steiner, Adrian

Subjects:

600 Technology > 610 Medicine & health
600 Technology > 630 Agriculture

ISSN:

0022-0302

Publisher:

American Dairy Science Association

Language:

English

Submitter:

Nathalie Viviane Zollinger

Date Deposited:

27 Aug 2019 11:41

Last Modified:

22 Oct 2019 19:33

Publisher DOI:

10.3168/jds.2018-15882

PubMed ID:

31351728

Uncontrolled Keywords:

claw horn disruption digital perfusion lameness pulsed-wave Doppler

BORIS DOI:

10.7892/boris.132766

URI:

https://boris.unibe.ch/id/eprint/132766

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