Interspecific hybridization is the mating of
1) superior males and females of different breeds
2) more closely related individuals within same breed for 4- 6 generations
3) animals within same breed without having common ancestors

Answer

### Step-by-Step Solution:

1. **Understanding the Terms**:
- First, we need to clarify the terms related to breeding. Breeding involves mating male and female individuals to obtain desirable traits in the offspring.

2. **Identifying Inbreeding**:
- Inbreeding refers to the mating of closely related individuals within the same breed. These individuals share a common ancestor for about 4 to 6 generations.

3. **Identifying Outbreeding**:
- Outbreeding involves mating unrelated animals, which can occur within the same breed (outcrossing) or between different breeds (crossbreeding). In outcrossing, the animals do not share a common ancestor for 4 to 6 generations.

4. **Defining Interspecific Hybridization**:
- Interspecific hybridization specifically refers to the mating of male and female animals from different but related breeds. This can lead to offspring that may exhibit desirable traits from both parent breeds.

5. **Evaluating the Options**:
- Option 1: Superior males and females of different breeds – This aligns with the definition of interspecific hybridization.
- Option 2: More closely related individuals within the same breed for 4-6 generations – This describes inbreeding.
- Option 3: Animals within the same breed without having common ancestors – This describes outcrossing.

6. **Conclusion**:
- Based on the definitions and evaluations, the correct answer is **Option 1**: Interspecific hybridization is the mating of superior males and females of different breeds.