Objective measures for the assessment of post-operative pain in bos indicus bull calves following castration
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Objective measures for the assessment of post-operative pain in bos indicus bull calves following castration. / Musk, Gabrielle C.; Jacobsen, Stine; Hyndman, Timothy H.; Lehmann, Heidi S.; Tuke, S. Jonathon; Collins, Teresa; Gleerup, Karina B.; Johnson, Craig B.; Laurence, Michael.
In: Animals, Vol. 7, No. 10, 76, 10.2017.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Objective measures for the assessment of post-operative pain in bos indicus bull calves following castration
AU - Musk, Gabrielle C.
AU - Jacobsen, Stine
AU - Hyndman, Timothy H.
AU - Lehmann, Heidi S.
AU - Tuke, S. Jonathon
AU - Collins, Teresa
AU - Gleerup, Karina B.
AU - Johnson, Craig B.
AU - Laurence, Michael
PY - 2017/10
Y1 - 2017/10
N2 - The aim of the study was to assess pain in Bos indicus bull calves following surgical castration. Forty-two animals were randomised to four groups: no castration (NC, n = 6); castration with pre-operative lidocaine (CL, n = 12); castration with pre-operative meloxicam (CM, n = 12); and, castration alone (C, n = 12). Bodyweight was measured regularly and pedometers provided data on activity and rest from day −7 (7 days prior to surgery) to 13. Blood was collected for the measurement of serum amyloid A (SAA), haptoglobin, fibrinogen, and iron on days 0, 3 and 6. Bodyweight and pedometry data were analysed with a mixed effect model. The blood results were analysed with repeated measure one-way analysis of variance (ANOVA). There was no treatment effect on bodyweight or activity. The duration of rest was greatest in the CM group and lowest in the C group. There was a significant increase in the concentrations of SAA, haptoglobin, and fibrinogen in all of the groups from day 0 to 3. Iron concentrations were not different at the time points it was measured. The results of this study suggest that animals rest for longer periods after the pre-operative administration of meloxicam. The other objective assessments measured in this study were not able to consistently differentiate between treatment groups.
AB - The aim of the study was to assess pain in Bos indicus bull calves following surgical castration. Forty-two animals were randomised to four groups: no castration (NC, n = 6); castration with pre-operative lidocaine (CL, n = 12); castration with pre-operative meloxicam (CM, n = 12); and, castration alone (C, n = 12). Bodyweight was measured regularly and pedometers provided data on activity and rest from day −7 (7 days prior to surgery) to 13. Blood was collected for the measurement of serum amyloid A (SAA), haptoglobin, fibrinogen, and iron on days 0, 3 and 6. Bodyweight and pedometry data were analysed with a mixed effect model. The blood results were analysed with repeated measure one-way analysis of variance (ANOVA). There was no treatment effect on bodyweight or activity. The duration of rest was greatest in the CM group and lowest in the C group. There was a significant increase in the concentrations of SAA, haptoglobin, and fibrinogen in all of the groups from day 0 to 3. Iron concentrations were not different at the time points it was measured. The results of this study suggest that animals rest for longer periods after the pre-operative administration of meloxicam. The other objective assessments measured in this study were not able to consistently differentiate between treatment groups.
KW - Analgesia
KW - Australia
KW - Brahman
KW - Husbandry
KW - Welfare
U2 - 10.3390/ani7100076
DO - 10.3390/ani7100076
M3 - Journal article
C2 - 28956843
AN - SCOPUS:85031027564
VL - 7
JO - Animals
JF - Animals
SN - 2076-2615
IS - 10
M1 - 76
ER -
ID: 186877822