Normal Ovary with Multiple Follicles.
Normal ovary with multiple follicles during proestrus/estrus.
Shipley C (2014)
Multiple Follicles.
Many small follicles during early proestrus.
Roberts SJ (1973)
Cystic Follicles.
Oral progestins can successfully synchronize estrus in the sow. However, low doses of progestin can cause cystic follicles as shown here 3 to 4 days after estrus occurred.
Roberts SJ (1973)
Cystic Follicles - Close-up.
Oral progestins can successfully synchronize estrus in the sow. However, low doses of progestin can cause cystic follicles as shown here 3 to 4 days after estrus occurred. The fimbria partially envelop the ovaries.
Roberts SJ (1973)
Large Cystic Follicles.
Large cystic follicles in a sow (note striae on the uterine surface).
Evans LE (2009)
Large Cystic Follicles.
Large hemorrhagic cystic follicles in a gilt.
Shipley C (2006)
Large Hemorrhagic Cystic Follicles.
Large bilateral hemorrhagic cystic follicles in a gilt.
Shipley C (2014)
Large Clear Cystic Follicles.
Large bilateral clear cystic follicles in a gilt.
Shipley C (2006)
Cystic Follicles in a Gilt.
Cystic follicles in an older gilt with irregular cycles.
Evans LE (2009)
Cystic Follicles in a Sow.
Cystic follicles in an 8-year old sow with endometrial hyperplasia.
Smith MC (2011)
Hemorrhagic Follicles.
Underdeveloped uterus inflated with air. There are many hemorrhagic anovulatory follicles.
McEntee K (1973)
CLs and a Large Anovulatory Follice.
Normal corpora lutea and a large anovulatory follicle.
Shipley C (2006)
Normal Corpora Lutea.
Normal corpora lutea and several small normal anovulatory follicles.
Roberts SJ (1973)
Corpora Hemorrhagica.
Normal corpora hemorrhagica, 3 to 4 days after ovulation.
Evans LE (2009)
Various Ovarian Activity.
1. Large multi-cystic ovary of a non-cycling gilt; 2. [lower left] small ovary from a gilt that is now anestrous (small corpus albicans); 3. [lower right] ovary with mature, well vascularized, corpora lutea, at about day 15 of the estrous cycle.
Evans LE (2009)
Anestrous Ovary.
No ovarian activity in a sow. [note the striae on the uterus]
Shipley C (2006)
Ovarian Adhesions.
Ovarian adhesions and salpingitis. Note oviductal distension. The fimbriae are adhered to the ovaries. One of many infertile gilts that had received intraperitoneal injections, of sulfas or tetracycline, to treat baby pig diarrhea.
Evans LE (2009)
Ovarian Pathology.
The lesion on the left was a fibrotic ovary. In the center was a cystic oviduct and on the right a leiomyofibroma.
Evans LE (2009)
Delayed Puberty.
Anestrous 10-month old gilt with multiple small follicles and no corpora lutea on her ovaries. Delayed puberty.
Evans LE (2009)
Delayed Puberty.
Anestrous gilt with multiple small follicles and no corpora lutea on her ovaries. Delayed puberty.
Shipley C (2006)
Superovulation.
Multiple follicles on the ovaries of a gilt treated with PG600 to produce super ovulation. [PG 600: 20 IU hCG and 400 IU eCG per dose]
Evans LE (2009)