Naslov
ARTIFICIAL INSEMINATION WITH CHILLED SEMEN IN DOGS

Autori
Zabret, Ajda

Vrsta, podvrsta i kategorija rada
Ocjenski radovi, diplomski rad, diplomski

Fakultet
Veterinarski fakultet

Mjesto
Zagreb

Datum
28.09

Godina
2022

Stranica
50

Mentor
Lojkić, Martina ; Špoljarić, Branimira

Ključne riječi
dogs, chilled semen, extenders, optimal breeding time, insemination technique

Sažetak
Artificial insemination is a useful method to improve genetic traits in different dog breeds. The use of fresh, chilled semen has become very popular among dog breeders. Chilled semen is especially suitable for short term storage and short distance transportation, i.e., 24-48 hours. This method allows for reducing travel-related stress and inbreeding, by using genetically superior dog semen all over the world. It is also a good way to prevent the spread of sexually transmitted disease. By mixing semen with extender and cooling to 4°C, fertility remains preserved for a long time. Semen extenders protect the spermatozoa from cold shock, provide energy substrates and maintain constant pH and osmolarity. Mostly used extender is Tris-fructose- citrate-egg yolk-based extender providing sperm longevity for 3-10 days. AI with fresh chilled semen can be performed using different techniques, such as deep vaginal insemination, or preferably by intrauterine insemination, which can be performed by using non-surgical transcervical catheterization or by surgical semen deposition by laparotomy or laparoscopy. Vaginal insemination provides adequate pregnancy rate, but intrauterine insemination gives higher pregnancy rate and litter size. To perform AI successfully, anatomy of female reproductive tract and physiology of estrus cycle of the bitch must be known so that procedure could be performed at appropriate time and by using the most appropriate insemination technique and place of semen deposition, according to the individual case.

Izvorni jezik
Engleski

Znanstvena područja
Veterinarska medicina

POVEZANOST RADA