The demand for information on enhancing the quality of small ruminant semen is rising, driven by the need for effective use of superior germplasm and increased milk and meat production. Artificial insemination is a key technique for genetic improvement in the livestock industry. Various factors, including oxidative stress, significantly impact semen quality and fertility rates in caprine and ovine species. Chemical additives, such as antioxidants, sugars, and proteins, can protect semen quality and improve fertility outcomes in these small ruminants. This book will be valuable to scientists in andrology and semen processing labs, animal breeders, dairy farmers, commercial frozen semen banks, and companies that manufacture extenders and preservatives.