Question

The male having coiled horns and highest sperm concentration is

• A. Boar
• B. Ram
• C. Stallion
• D. Gelding

Hint:

Semen profiles:
Ram = Low volume, extremely high concentration.
Boar/Stallion = High volume, low concentration.

Answer 1

The Correct Option is B

Step 1: Understanding the Concept:
Male breeding animals exhibit unique physical characteristics and semen profiles.
Semen concentration varies widely among species and is inversely related to the total ejaculate volume.

Step 2: Detailed Explanation:
The ram (an intact male sheep) is well-known for having large, spirally coiled horns in many sheep breeds.
Physiologically, rams produce a low-volume ejaculate (typically 0.5 to 0 mL) that is highly concentrated.
The sperm concentration in ram semen ranges from $2,000 \times 10^{6}$ to $5,000 \times 10^{6}$ sperm cells per milliliter (or 2 to 5 billion cells/mL).
This is the highest sperm concentration among domestic farm animals.
In comparison:
- Boars produce a high-volume ejaculate (up to 250 mL) with a much lower sperm concentration (about 100 to $300 \times 10^{6}$ cells/mL).
- Stallions also produce high-volume, low-concentration semen and do not have horns.
- A gelding is a castrated male horse and is sterile.

Step 3: Final Answer:
The ram is the male domestic animal characterized by coiled horns and the highest sperm concentration in its semen.