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Changes in testicular morphology in boars actively immunized against gonadotropin hormone-releasing hormone
testicular morphology boars actively gonadotropin hormone-releasing hormone
2009/2/23
Alterations in testicular morphology were studied in boars actively immunized against gonadotropin hormone releasing hormone (GnRH). Ten boars were divided equally into two experimental groups (five...
Impaired estrogen production by Leydig cells of the naturally retained testis in unilaterally cryptorchid boars and stallions
testis cryptorchid boar stallion estrogens
2009/2/23
Estrogen production in vitro was compared for Leydig cells from cryptorchid and scrotal testes in boars and stallions. Animals with natural and experimental cryptorchidism were used. Purified Leydig...
Testicular composition, number of A spermatogonia, germ cell ratios, and number of spermatids in three different breeds of boars
Breed boar testis composition
2009/2/16
Seminal quality, including the number of spermatozoa in the ejaculate, varies among breeds of boars. Variation in seminal quality may be explained by breed differences in testicular size and compo...
Objectively measured sperm motility and sperm head morphometry in boars（Sus scrofa）：relation to fertility and seminal plasma growth factors
sperm motility sperm head morphometry fertility seminal plasma growth factors
2008/12/26
This study was conducted to investigate the relationships between results of computer-assisted semen analysis (spermatozoal motility and sperm head morphometry) and fertility of boars. In addition, ...
Effects of Estradiol Infusion in GnRH Immunized Boars on Spermatogenesis
Estrogen receptor spermatogenic stage apoptosis mitosis
2008/12/24
Active immunization of boars against gonadotropin-releasing hormone (GnRH) inhibits luteinizing hormone (LH) and testicular steroids, so that mitosis of spermatogonia is reduced and apoptosis increa...
Reducing Estrogen Synthesis in Developing Boars Increases Testis Size and Total Sperm Production
Aromatase inhibition Sertoli cell Leydig cell
2008/12/24
The abundant production of testicular estrogens and the presence of both ESR1 and ESR2 within boar testes are consistent with a role for estrogen in testicular development and/or function in this sp...