The Numbers of Normal and Atretic Ova in the Mature Rat

The number of oocytes and the rate of atresia in unilaterally ovariectomized mice up to 8 months after surgery

“…Studies of follicular development in the days following surgery indicate that the immediate compensatory ovulation is due to increased recruitment of preantral or early antral follicles (Hermreck & Greenwald, 1964;Peppier & Greenwald, 1970b;Chiras & Greenwald, 1978 Mandi & Zuckerman (1950, 1951 since these methods had been used in the earlier studies on mice and rats (Mandi & Zuckerman, 1951;Mandi et al, 1952;Jones & Krohn, 1960 (Mandi & Zuckerman, 1950, 1951 The present study was founded on the assumption that the increased output of eggs by the single ovary remaining after surgery could, in the long term, be controlled either by increasing the rate at which follicles leave the pool, or by reducing the number of oocytes lost by atresia. For the first of these assumptions the overall depletion of oocytes should be more rapid than in a control ovary, and this has been claimed to be the case in the rat (Mandi et al, 1952).…”

Proposal for a Classification of Oocytes and Follicles in the Mouse Ovary

“…(Received 27th May 1968) The need to develop a common terminology to describe the components of the ovary has been felt for some time (Gatz, 1955;Wischnitzer, 1966 (Engle, 1927;Mandl & Zuckerman, 1950;Adams & Hertig, 1964;Hadek, 1965). Others take the largest diameter or the volume of the follicles as the distinguishing criterion (Boling, Blandau, Soderwall & Young, 1941;Paesi, 1949), while still others use a combination of the number of cell layers and follicle diameter to describe the stage of follicle development (Bullough, 1942;Ingram, 1959;Knigge & Leathem, 1956).…”

Effect of lifetime intake of organically bound tritium and tritiated water on the oocytes of rats

“…The number of oocytes per ovary were calculated using formula of Abercrombie [1]. Because the number of oocytes in the right ovary is not statistically different from that in the left one [15], the values obtained for one ovary were multiplied by two to obtain data for both ovaries of females.…”