Artificial intravaginal insemination using fresh semen in cats

Area of Science:

• Veterinary Medicine
• Reproductive Biology
• Animal Science

Background:

• Artificial intravaginal insemination (AIVI) is a technique used in animal reproduction.
• Determining optimal sperm counts is crucial for maximizing fertilization success in AIVI procedures.
• Feline reproduction research often requires precise protocols for artificial insemination.

Purpose of the Study:

• To establish the minimum effective sperm count for successful fertilization in cats using artificial intravaginal insemination (AIVI).
• To evaluate the impact of different sperm concentrations on conception rates and litter sizes in AIVI procedures.
• To provide data-driven recommendations for optimizing AIVI protocols in domestic cats.

Main Methods:

• Twenty-nine female cats were subjected to AIVI with varying sperm counts (20x10^6, 40x10^6, and 80x10^6).
• Ovulation was induced using hCG, and insemination timing was standardized.
• Semen was collected via artificial vagina and infused using a specialized nylon probe under anesthesia.

Main Results:

• Ovulation induction was successful in 95.6% of cases.
• Conception rates increased significantly with higher sperm counts: 6.6% (20x10^6), 33.3% (40x10^6), and 77.8% (80x10^6).
• No significant difference in litter size was observed between successful groups (4.0±0.4 and 3.3±0.5 kits).

Conclusions:

• A sperm count of 80 x 10^6 is required for effective fertilization using artificial intravaginal insemination with fresh semen in cats.
• Lower sperm counts (20x10^6 and 40x10^6) result in significantly lower conception rates.
• This study provides critical insights for improving AIVI success rates in feline breeding programs.