Exfoliative vaginal cytology and plasma levels of estrone and estradiol-17β in young and adult goats

Pérez-Martínez, Mario; Mendoza, M.E; Romano, Marta

doi:10.1016/s0921-4488(99)00008-5

Cited by 23 publications

(11 citation statements)

References 11 publications

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“…Vaginal epithelium is characterized by its great sensitivity to estrogen and progesterone concentration changes during the different reproductive stages. It is well known that in domestic mammals vaginal epithelium cells have a variation in the pattern of exfoliated cells which is indicative of the reproductive stage of the female (Pérez-Martínez et al, 1999). When comparing adult female groups it was found that epithelial lamina thickness of the vagina in the caudal and cranial sections increases with the parturition ordinal number.…”

Section: Discussionmentioning

confidence: 96%

Histometric Parameters of Uterus and Vagina in Breeder Female Rabbits on the Day After Weaning According to the Ordinal Number of Parturitions

et al. 2014

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SUMMARY:The objective of this study was to establish in New Zealand female rabbits, the effect of ordinal number of parturitions on some histological parameters on the day after weaning. Tissue fragments of uterus and vagina were obtained from females of first, second and third parturitions and were processed imbedding them in paraffin in order to do histological cuts. In eight microscope fields captured by a camera connected to an optic microscope, the lumen and glandular endometrial epithelium height, as well as the thickness of vaginal and myometrium epithelium thickness were measured. From the results that were obtained it was concluded that there are significant differences (p<0.05) in histological parameters evaluated in uterus and vagina between does of different parturitions, which indicates that the number of parturitions has an effect on histometric characteristics of genital tract organs in breeder female rabbits.

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Section: Discussionmentioning

confidence: 96%

Histometric Parameters of Uterus and Vagina in Breeder Female Rabbits on the Day After Weaning According to the Ordinal Number of Parturitions

et al. 2014

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“…dioestrus which correspond to the luteal phase controlled by progesterone. These cyclical relationships between the exfoliated cells and the ovarian steroids have been severely established for small ruminants and other species [2,3,6]. The average cycle length for the does during trial 1 could not be determined because the smears were not collected on a daily basis.…”

Section: Discussionmentioning

confidence: 99%

“…Since large intermediate cells dominated the smear on this day, it could have just been the early hours of oestrus, because oestrus behaviour is usually associated with a preponderance of superficial (desquamated or cornified) cells [2,3,7,8,10]. The vaginal cytological pattern of the non-descript does in this study was typical of anoestrus and peri-pubertal does [2,3]. The smears from the adult (supposedly normocycling) does indeed showed some evidence of regular cycling.…”

Section: Discussionmentioning

confidence: 99%

“…In the absence of infections, the circulating levels of progesterone and oestradiol-17β are the major determinants of the cytology pattern of the vagina [1,2]. However Perez-Martinez et al [2] showed that oestrone is the main oestrogen produced during the peripuberal period of the goat and it remains detectable in adult goats even after progestagen treatment when serum oestradiol was not detected. Exfoliated cells in the vaginal lumen are the result of rising peripheral oestrogen which causes the vaginal wall to thicken.…”

Section: Introductionmentioning

confidence: 99%

“…cells, which has been utilised to determine the physiological and pathological status of the female animal as well as a tool for hormonal bioassay in several animal species [2][3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

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Exfoliative vaginal cytology during the oestrous cycle of West African dwarf goats

2006

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-The pattern of vaginal cell exfoliation during the oestrous cycle period was studied in cycling and non-descript West African dwarf (WAD) goats. The exfoliated epithelial cells were categorised into parabasal, intermediate and superficial and their relative occurrences were used to determine the reproductive status of the cycling and non-descript does. The mean cell counts of the epithelial and leucocyte cells were also compared between the days of cycle. Leucocyte and epithelial cells were present in the vaginal smears of the WAD does throughout the cycle. Cell counts increased sharply on days 1 and 2 after standing oestrus. From day 4 of the cycle, the counts fell back to the levels at oestrus and daily variations thereafter were not striking enough to distinguish between the different stages of the cycle. In the non-descript does, the intermediate cell dominated the majority of the smears, which is the typical pattern of cell exfoliation in anoestrus and peri-pubertal does. In the smears from cycling does, however, superficial cells were more frequently observed and they appeared to be associated with the proestrus, oestrus and early metoestrus phases of the cycle. These results indicate that the pattern of exfoliation of vaginal cells could be used to determine the reproductive condition and by extension the ovarian functioning of the WAD goats. WAD goat / vaginal cytology /oestrous cycle

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Sheep and Goats

Hooijberg¹,

Jenei²,

Sharkey³

2020

Veterinary Cytology

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Exfoliative vaginal cytology and plasma levels of estrone and estradiol-17β in young and adult goats

Cited by 23 publications

References 11 publications

Histometric Parameters of Uterus and Vagina in Breeder Female Rabbits on the Day After Weaning According to the Ordinal Number of Parturitions

Histometric Parameters of Uterus and Vagina in Breeder Female Rabbits on the Day After Weaning According to the Ordinal Number of Parturitions

Exfoliative vaginal cytology during the oestrous cycle of West African dwarf goats

Sheep and Goats

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