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Table 1 Vitamin A concentration in different samples from clinically affected calves compared to reference values

From: Hypovitaminosis A coupled to secondary bacterial infection in beef cattle

Samples Concentrations Normal value (16)
Feeda 1360 IU/kg 400000 IU/kg
Milkb 36.1 IU/L 698 IU/L
Serum Ac 1055 IU/L 43605 IU/L
Serum Bd 130 IU/L 43605 IU/L
  1. a Five feed samples were chose randomly and vitamin A concentration was shown in average (pā€‰<ā€‰0.01).
  2. b Three milk samples from the affected cows were chose randomly and vitamin A concentration was shown in average(pā€‰<ā€‰0.05).
  3. c Serum A was prepared from the affected calves at the early stage of disease.
  4. d Serum B was prepared from the affected calves at the late stage.