Animal Reproduction Publications Database
| S/N | Year | Title | Authors | Publication | Type | Publisher | DOI | Area | Abstract | Link/PDF | Action |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2012 | Buck effect on rabbit oestrous: vulva colour, vaginal lumen cells and ovarian follicle populations | Idowu Ola, Moses Oyegbade | World Rabbit Science | Journal | World Rabbit Science Association | https://doi.org/10.4995/wrs.2012.1081 | Reproductive Anatomy/Physiology | The aim of this study was to determine the response to combinations of male stimuli in the oestrous doe in terms of changes in vulva colour, exfoliated cells in the vaginal lumen and the ovarian histology. Twelve oestrous heterogeneous rabbits does (6 multiparous and 6 nulliparous) were allotted equally to 3 experimental treatments: VIC – Male exposure with visual contact; NVC – Male exposure without visual contact and; NOC – Females completely isolated and not allowed any contact with the male. The does were placed under these treatments for 30 consecutive days during which vulvar colour was checked and vaginal smears were taken daily for each animal. All animals were sacrificed on the thirtieth day and their ovaries processed for histological examination following H & E staining. Does with NVC and VIC exposure displayed either red or pink vulva in 95 and 90% of cases, respectively, the remaining cases being rose coloured but never a whitish vulva (P<0.05), whereas does with NOC exposure displayed rose vulva on 80% of the days checked and another 11.7% cases with white vulvae but never a reddish vulva (P<0.05). The proportions of superficial, intermediate and parabasal epithelial cells in the vagina smears showed that superficial cells usually contribute less than 16% of the total and are also less abundant (P<0.05) irrespective of the doe’s exposure type or vulva colour, except in male-isolated does with purple vulva. All categories of follicles were seen on ovarian sections from NVC and VIC does, but corpora lutea were also present on the sections from VIC does, whereas only follicles below 0.5 mm diameter were seen on the sections from NOC does. In conclusion, these results suggest that the rabbit does require some form of stimulus from the male to remain sexually attractive. Moreover, ovulation appeared to have been induced in the does with visual contact with the male, probably in conjunction with auditory and olfactory, but without tactile or mating contacts. | Link | |
| 2 | 2006 | Exfoliative vaginal cytology during the oestrous cycle of West African dwarf goats | Safiriyu Idowu Ola, Wasiu Ajani Sanni, Gabriel Egbunike | Reproduction Nutrition Development | Journal | INRA, EDP Sciences | 10.1051/rnd:2005067 | Reproductive Anatomy/Physiology | 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 | Link |
