SEMEN COLLECTION IN RAMS STANDING UP OR IN LATERAL RECUMBENCY USING DIFFERENT ELECTROEJACULATORS

• Autor(a) principal: de Lima, Ligia Freitas
• Data de Publicação: 2010
• Outros Autores: Tortorella, Rodrigo Dorneles, Leal, Diogo Ramos, Braga Passos, Pedro Ivo, Neves, Jairo Pereira, Sartori, Roberto, Nascimento Silva, Thiago Antônio de Souza, Hashimoto, Hetielle Harumi
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Ciência animal brasileira (Online)
• Texto Completo: https://revistas.ufg.br/vet/article/view/4009
• topic: Animal Reproduction; Reprodução animal

The objective of the experiment was to evaluate and compare two electroejaculators: an automatic one (A – Biocom Ltda., Uberaba, MG) and a manual one (M – Duboi, Campo Grande, MS), using two methods of physical restrain: standing (E) or lateral recumbency (D). Twelve rams were used: Santa Inês (n=9), Ile-de-France (n=2) and Texel (n=1). Semen were collected twice a week and each animal had the semen collected three times in each group (AD – automatic in recumbency, AE – automatic in station, MD – manual in recumbency, and ME – manual in station) resulting in 12 collections. Blood samples were obtained before and after the semen collections to measure changes in circulating cortisol in order to measure stress among groups and individuals. The collections were evaluated per the time in seconds to obtain seminal fraction, time of seminal fraction and percentage of rams that exposed the penis. The collected semen parameters evaluated were: volume, aspect, progressive motility, wave motion, sperm vigor, total number of spermatozoa and sperm morphology. In 7.1% of the collections, there was no ejaculation, moreover, group AD was responsible for most of the collections without ejaculation (20%) (P0.05) relating to cortisol level after collections. However, there was difference among individuals (P