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Successful pregnancy following gonadotrophin‐releasing hormone analogue treatment in a previously infertile bitch
Author(s) -
Tsumagari S.,
Ishinazaka T.,
Watanabe G.,
Taya K.,
Ishii M.
Publication year - 2006
Publication title -
journal of small animal practice
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.7
H-Index - 67
eISSN - 1748-5827
pISSN - 0022-4510
DOI - 10.1111/j.1748-5827.2006.00044.x
Subject(s) - medicine , estrous cycle , hormone , radioimmunoassay , follicle stimulating hormone , endocrinology , pregnancy , luteinizing hormone , andrology , biology , genetics
A Labrador retriever bitch was presented with repeated unsuccessful breeding during both the third and fourth oestruses, even though accurate timing for natural mating was planned based on the results obtained using a semiquantitative luteinising hormone kit and a quantitative assay of progesterone. To identify the problem, serum luteinising hormone, follicle‐stimulating hormone, progesterone, and oestradiol‐17β concentrations around the fourth oestrus stage were assayed by radioimmunoassay. Abnormal luteinising hormone fluctuations were detected during pro‐oestrus and oestrus, and lower than normal progesterone concentrations were found during the mating period. In the fifth to seventh oestrus, the bitch was successfully treated with gonadotrophin‐releasing hormone analogue at times based on the findings of the hormonal assays.