Title
Laparoscopic intrauterine insemination with frozen-thawed semen in Black Belly ewes
Other title
InseminaciÓN intrauterina vÍa laparoscÓpica de ovejas black belly con semen congelado
Date Issued
01 January 2006
Access level
metadata only access
Resource Type
journal article
Publisher(s)
Universidad Nacional Mayor de San Marcos
Abstract
The present study was carried out to evaluate the pregnancyrate of Black Belly ewes reared under the conditions of the Peruvian coast, that were laparoscopic intrauterine inseminated with frozen-thawed pellet semen. Females were divided according to age and reproductive historyin nulliparous (n = 21) and ewes (n = 17). Estrous synchronization was done using vaginal sponges (60 mg medroxyprogesterone acetate) for 13 days and the injection of 300 IU equine chorionic gonadotrophin upon sponge removal. The intrauterine insemination was conducted at fixed time (62-65 h post withdrawal ofvaginal sponge) using a semen dose (0.4 ml, 40 x 106spermatozoa) into the lumen of each uterine horn. Sedatives or tranquilizers were not used. Ultrasound pregnancy diagnosis was performed at day35 after insemination. No significant differences were found in pregnancy rates between nulliparous (71.4%) and ewes (64.7%). The high pregnancy rates when using laparoscopic intrauterine insemination with frozen-thawed semen in Black Belly females supports the use of this technique for breeding elite animals.
Start page
131
End page
136
Volume
17
Issue
2
Language
Spanish
OCDE Knowledge area
Ciencia veterinaria
Scopus EID
2-s2.0-84999090287
Source
Revista de Investigaciones Veterinarias del Peru
ISSN of the container
16823419
Sources of information: Directorio de Producción Científica Scopus