Disappearance of signs of heat and induction of ovulation in oestrous queens with gonadorelin: a clinical study.
J Feline Med Surg
; 23(4): 344-350, 2021 04.
Article
em En
| MEDLINE
| ID: mdl-32840446
ABSTRACT
OBJECTIVES:
The objective of this study was to assess the efficacy of a single intramuscular administration of gonadorelin to induce ovulation in queens in oestrus.METHODS:
Twenty-seven queens presented in oestrus for elective ovariectomy were divided into a treatment (n = 19) and a placebo (n = 8) group. Treated queens received a 50 µg dose of gonadorelin, while placebo-treated queens were injected intramuscularly (IM) with an equal amount of saline solution. All treatments were performed between the second and fourth days of heat.RESULTS:
Two days later, signs of behavioural heat had disappeared in all gonadorelin-treated queens, while 5/8 placebo-treated queens were still in heat. Following ovariectomy, performed 4 days after drug administration, the ovaries of each queen were evaluated histologically and the number of corpora lutea were counted. Sixteen of 19 (84%) gonadorelin-treated queens had ovulated and developed five (range 2-9) corpora lutea, while 3/8 (37%) placebo-treated queens had ovulated and developed five (range 3-6) corpora lutea. CONCLUSIONS AND RELEVANCE This is the first study to document the efficacy of a 50 µg/cat gonadorelin dose to induce ovulation in oestrous queens when administered IM on days 2-4 following the onset of oestrus.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Ovulação
/
Temperatura Alta
Tipo de estudo:
Diagnostic_studies
Limite:
Animals
Idioma:
En
Ano de publicação:
2021
Tipo de documento:
Article