Gross characterization of ovarian follicular population in relation to developmental stage of corpus luteum in goat

Abstract

Studies were carried out to observe the effect of age and stage of cycle on ovarian follicular dynamics in
goat ovary. 264 genitalia from non-descript goats were collected from the local slaughterhouse throughout the
year and classified into immature, mature, old and pregnant on the basis of color, condition and tonicity of
muscles of uteri, oviducts and ovaries. Cyclicity of mature and old animals was further adjudged on the basis of
presence and stage of corpus luteum. Maximum numbers of genitalia were observed from the mature class and
minimum were that from pregnant. The total number offollic_les observed was more in immature ovary as compared
to mature and aged animals. Ovaries in late luteal phase of mature animals had more number of follicles per
ovary as compared to early luteal and follicular phase. In aged animals, the number of follicles/ovary did not
differ significantly during different stages of estrous cycle. Rate ofatresia increased in mature and old animals as
compared to immature animals. Generally left ovary had more number of follicles as compared to the right.