AI Article Synopsis
- - This study explored how surgical castration affects the behavior and health indicators of Korean cattle bull calves, looking specifically at changes in stress hormones and inflammatory cytokine levels.
- - Nineteen bull calves were split into two groups: one underwent castration while the other did not, and various biological samples were taken before and after the procedure.
- - Results showed castration led to reduced growth rates, altered eating habits, and temporary increases in stress and inflammation markers, indicating castration causes stress and an inflammatory response in these animals.
Article Abstract
Objective: This study investigated the effects of surgical castration on behavior, physiological and inflammatory indicators, and leukocyte cytokine mRNA levels in Korean cattle bull calves.
Methods: Nineteen Korean cattle bull calves (average body weight, 254.5 kg; average age, 8.2 months) were divided into two treatment groups: control (n = 9) and castration (n = 10). Surgical castration was performed using Newberry knives and a Henderson castrating tool. Blood was obtained just before castration (0 h) and at 0.5 h, 6 h, 1 d, 3 d, 7 d, and 14 d after castration. Plasma cortisol (PC), saliva cortisol (SC), plasma substance P, and plasma haptoglobin concentrations, and the leucocyte mRNA levels of the interleukin-1-alpha (IL1A), interleukin-1-beta (IL1B), interleukin-1 receptor antagonist (IL1RN), and interleukin-6 (IL6) genes were analyzed.
Results: Castration decreased (p<0.01) the average daily gain and gain/feed ratio. Castration reduced the time spent eating (p<0.001) and the eating frequency (p<0.01) and increased (p<0.001) the lying frequency. Castration temporarily increased (p<0.05) circulating PC and SC concentrations at 0.5 h after castration. Castration temporarily increased (p<0.05) plasma substance P concentrations at 1 d after castration. Castration increased (p<0.05) plasma haptoglobin concentrations at 1 and 3 d after castration. Castration increased (p< 0.05) leukocyte mRNA levels of the IL1A, IL1B, IL1RN, and IL6 genes at 6 h after castration.
Conclusion: Castration temporarily induced stress and expression of leucocyte inflammatory cytokine genes in Korean cattle bull calves.
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Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9996263 | PMC |
| http://dx.doi.org/10.5713/ab.22.0368 | DOI Listing |
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