Step 1: Understanding the Concept:
Draught animal power (DAP) biomechanics: matching draught bullock body size and pulling capacity with properly designed matching agricultural implements and yokes.
Key Formula or Approach:
\[ \text{Draught Power Output (kW)} = \frac{\text{Draught Force (N)} \times \text{Walking Speed (m/s)}}{1000} \]
Step 2: Detailed Explanation:
In draught animal power (DAP) technology and farm mechanization:
- The draught efficiency, tractive effort, and working endurance of work bullocks are maximized when there is optimal biomechanical compatibility between the Animal and the Implement:
1. Animal Factor: Selection of appropriate draught breed (e.g., Hallikar, Amritmahal, Kangayam, Nagori), body weight (draught capacity $\approx 10-12\%$ of body weight sustained), training, and proper ergonomic yoking.
2. Implement Factor: Use of improved matching implements (three-pad collar harness, pneumatic-tired carts, roller-bearing axles, and balanced plows) that minimize friction and draft resistance.
Step 3: Final Answer:
Hence, working efficiency is enhanced by selecting Animal and Implement, matching option (B).