Question

Electric dehorner maintains the temperature at about

• A. 137 Ā°C
• B. 237 Ā°C
• C. 537 Ā°C
• D. 37 Ā°C

Hint:

Disbudding Operating Temperatures: Electric Dehorner Tip = $1000^\circ\text{F} = 537^\circ\text{C}$ (Cherry red heat). Applied for 5--10 seconds per horn bud.

Answer 1

The Correct Option is C

Step 1: Understanding the Concept:
Thermal disbudding in young calves: electric cautery dehorners reach a red-hot operating temperature of approximately $1000^\circ ext{F} pprox 537^\circ ext{C}$ to rapidly destroy the germinal horn bud corium within 5--10 seconds.
Key Formula or Approach:
\[ T (^\circ\text{C}) = \frac{T (^\circ\text{F}) - 32}{1.8} \implies \frac{1000^\circ\text{F} - 32}{1.8} = 537.7^\circ\text{C} \approx 537^\circ\text{C} \]

Step 2: Detailed Explanation:
In calf management and surgical disbudding:
- Thermal electric disbudding (cautery) is the preferred method for disbudding young calves under 1 to 3 weeks of age.
- The Electric Dehorner (Budde dehorner) is heated until the copper ring tip glows cherry red, operating at a regulated temperature of 1000Ā°F (which converts exactly to 537 Ā°C).
- Application of the red-hot tip for 5 to 10 seconds with circular pressure completely cauterizes the cornual blood vessels and destroys the regenerative germinal horn epithelium without causing intracranial thermal damage.

Step 3: Final Answer:
Therefore, the electric dehorner maintains temperature at about 537 Ā°C, corresponding to option (C).