ISSN:
0003-276X
Keywords:
Life and Medical Sciences
;
Cell & Developmental Biology
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Medicine
Notes:
The reproductive biology of Carollia was investigated histologically in 113 females sacrificed at timed intervals after mating in a laboratory colony. A high incidence (44%) of non-pregnant animals could be partially attributed to occasional mating activity at times other than close to ovulation. Breeding success also improved as the males and females were housed together for increasing periods of time. At least 25% of the bats had adrenal cortical-like tissue in the vicinity of the ovaries.Ovulation of the single ovum usually occurred within 48 hours of the onset of female receptivity to the male. Both ovaries were functional, but there was a tendency towards the alternation of successive ovulations. The blastocyst stage was reached and the zona pellucida was lost in the oviduct between days 10 and 12 post-coitum. Blastocysts entered the uterus between days 13 and 16. The slow tubal journey of the ovum is presumably related to the occurrence of mensturation close to the time of ovulation and to the fact that most uterine growth is deferred until after ovulation. Additional ovulations and a new conception were observed during the course of several preexisting pregnancies.Differential stimulation of the two oviducts was evident both prior to and after ovulation. The oviductal secretory cells became engorged during the tubal journey of the ovum with a substance that was Alcian blue 8GX- and Giemsa (pH 4.5)-negative. Occasionally this material could be stained by the PAS procedure.
Additional Material:
1 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/ar.1091790309
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