Search Results

You are looking at 1 - 1 of 1 items for

  • Author or Editor: Juan Carlos Arango-Sabogal x
  • Refine by Access: All Content x
Clear All Modify Search

Abstract

OBJECTIVE

To evaluate the association between serum phosphorus concentration and the outcome of postpartum downer cows.

ANIMALS

Postpartum downer dairy cows presented over a 22-year period.

PROCEDURES

In this cross-sectional study (1994 to 2016), medical records of all postpartum downer cows presented to a referral large animal hospital were reviewed. The association between serum inorganic phosphorus concentration and survival was assessed using a multivariable logistic regression.

RESULTS

907 postpartum downer dairy cows were included and classified as hypophosphatemic (mild: > 2.25 to < 3.25 mg/dL, moderate: > 1.50 to ≤ 2.25 mg/dL, and severe: ≤ 1.50 mg/dL), normophosphatemic (≥ 3.25 and ≤ 8.76 mg/dL) or hyperphosphatemic (> 8.76 mg/dL). Hypophosphatemia was observed in 19.4% of the cows (n = 176). Of those, 54.5% (n = 96) were also hypocalcemic. Overall, 58.4% cows (n = 530) survived after hospitalization. Hypophosphatemia was not significantly associated with the outcome of postpartum downer cows (mild: OR = 1.0, 95% CI: 0.6 to 1.8; moderate: OR = 0.5, 95% CI: 0.2 to 1.1; severe: OR = 1.0, 95% CI: 0.4 to 2.4).

CLINICAL RELEVANCE

Low serum phosphorus concentration was frequently observed with hypocalcemia and was not associated with the outcome of postpartum downer cows.

Open access
in Journal of the American Veterinary Medical Association