Short term administration of cyproterone acetate for contraception: Effects on testosterone secretion and semen characteristics in rams (Ovis aries) and bucks (Capra hircus)

Autor: Viviana N. Flores-Gil, Rosario Velázquez, Adolfo Toledano-Díaz, Julián Santiago-Moreno, Antonio López-Sebastián
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Spanish Journal of Agricultural Research, Vol 18, Iss 4, Pp e0407-e0407 (2021)
Druh dokumentu: article
ISSN: 2171-9292
DOI: 10.5424/sjar/2020184-16871
Popis: Aim of study: To examine the influence of administering cyproterone acetate (CPA), at the beginning of the mating season, on the testosterone concentration and morphometric and functional characteristics of ram and buck semen. Area of study: Madrid, Spain Material and methods: Five rams and five bucks were intramuscularly administered 200 mg of CPA in 2 mL of olive oil twice per week - from July 1st to 31st in the rams, and from August 1st to 31st in the bucks. Five control animals of each species were administered 2 mL of olive oil. Blood samples and ejaculates analysed from the start of treatment until eight weeks after the last day of treatment. Main results: GLM-ANOVA showed the interaction species × CPA treatment to have effect (p
Databáze: Directory of Open Access Journals