Figure 1.
Figure 1.

Serum cortisol concentration (±SEM) of intact bull calves treated with sham castration (CON; n = 10), bulls surgically castrated without meloxicam administration (CAS; n = 10), and bulls surgically castrated with oral meloxicam (1 mg/kg BW) administration (MEL; n = 10). A treatment × time interaction was detected (P < 0.001). Within hour, letters indicate the following mean comparisons (P ≤ 0.05): a = CON vs. CAS, b = CON vs. MEL, and c = CAS vs. MEL.

 


Figure 2.
Figure 2.

Change in serum haptoglobin concentration (±SEM) of intact bull calves treated with sham castration (CON; n = 10), bulls surgically castrated without meloxicam administration (CAS; n = 10), and bulls surgically castrated with oral meloxicam (1 mg/kg BW) administration (MEL; n = 10). Values collected before castration (h –2 to –0.5) were used as the covariate (P = 0.137). A tendency for a treatment × time interaction was detected (P = 0.074). Within hour, letters indicate the following mean comparisons (P ≤ 0.05): a = CON vs. CAS, b = CON vs. MEL, and c = CAS vs. MEL.

 


Figure 3.
Figure 3.

Change in rectal temperature of intact bull calves treated with sham castration (CON; n = 10), bulls surgically castrated without meloxicam administration (CAS; n = 10), and bulls surgically castrated with oral meloxicam (1 mg/kg BW) administration (MEL; n = 10). Values recorded before castration (h –2 to –0.5) were used as the covariate (P < 0.001). No treatment × time interaction was detected (P = 0.84); however, there was a significant treatment (P < 0.001) and time (P < 0.001) effect.

 


Figure 4.
Figure 4.

Postcastration (h 0.5 to 72) white blood cell, eosinophil, neutrophil, and monocyte concentrations (±SEM) of intact bull calves treated with sham castration (CON; n = 10), bulls surgically castrated without meloxicam administration (CAS; n = 10), and bulls surgically castrated with oral meloxicam (1 mg/kg BW) administration (MEL; n = 10). Treatment effect (P ≤ 0.001); a–cmeans with different letters differ (P ≤ 0.002).

 


Figure 5.
Figure 5.

Blood lymphocyte concentration (±SEM) of intact bull calves treated with sham castration (CON; n = 10), bulls surgically castrated without meloxicam administration (CAS; n = 10), and bulls surgically castrated with oral meloxicam (1 mg/kg BW) administration (MEL; n = 10). A treatment × time interaction was detected (P = 0.016). Within hour, letters indicate the following comparison (P ≤ 0.02): a = CON vs. CAS, b = CON vs. MEL, and c = CAS vs. MEL.

 


Figure 6.
Figure 6.

Postcastration (h 0.5 to 72) red blood cell, platelets and hematocrit concentrations ( ± SEM) of intact bull calves treated with sham castration (CON; n = 10), bulls surgically castrated without meloxicam administration (CAS; n = 10), and bulls surgically castrated with oral meloxicam (1 mg/kg BW) administration (MEL; n = 10). Treatment effect (P ≤ 0.008); a–cmeans with different letters differ (P ≤ 0.002).