Presentation is loading. Please wait.

Presentation is loading. Please wait.

 Calf born on Friday evening, posterior presentation, pulled with chains (2 men pulling)  Dam: retained fetal membranes, mild fever.  Calf: unable.

Similar presentations


Presentation on theme: " Calf born on Friday evening, posterior presentation, pulled with chains (2 men pulling)  Dam: retained fetal membranes, mild fever.  Calf: unable."— Presentation transcript:

1

2  Calf born on Friday evening, posterior presentation, pulled with chains (2 men pulling)  Dam: retained fetal membranes, mild fever.  Calf: unable to rise, no suckle reflex. Hind legs had mild abrasions from chains. Owner tube fed colostrum and milk from dam

3  Unable to rise, appeared dull but responsive  Temp: 38.4, HR, mm and RR WNL, no murmur auscultated  Neuro exam: weak menace response, PLR difficult to assess due to eyes rolling ventrally. Retraction of neck resulted in loss of motor control of head.  Syndactyly on both front feet, hind right partially fused, hind left appeared normal.  Tendons severely contracted, unable to place feet on ground.

4

5

6 Left frontRight front

7 Right hind Left hind

8 Coning of cerebellum Spinal cord bleed

9  Common genetic abnormality found in many breeds, most commonly Holstein calves  More common in dairy, more severe in beef  Autosomal recessive trait with incomplete penetrance  Mutation of the low density lipoprotein receptor-related protein 4 (Lrp4 gene)  Can be one foot, or multiple feet affected – right front most commonly affected, hind left least likely

10  Problems:  Difficulty walking  Usually “unthrifty” and die in first few days  Unable to cope with stress and heat, get hypothermia very easily  If affected, both dam and sire may be carriers

11  Barr, M. (1981). Syndactyly. Angus Journal,  Leipold, H. W., Schmidt, G. L., Steffen, D. J., Vestweber, G. E., & Huston, K. (1998). Hereditary Syndactyly in Angus Cattle. J Vet Diag Invest, 10,


Download ppt " Calf born on Friday evening, posterior presentation, pulled with chains (2 men pulling)  Dam: retained fetal membranes, mild fever.  Calf: unable."

Similar presentations


Ads by Google