Topic:Prepubertal
The study of prepubertal horses focuses on the developmental stage before the onset of puberty, during which young horses undergo significant growth and physiological changes. This period is characterized by rapid musculoskeletal development, hormonal fluctuations, and the maturation of various organ systems. Research in this area often explores growth patterns, nutritional requirements, and the impact of early-life management practices on long-term health and performance. Investigations may include assessments of bone density, muscle development, and the onset of reproductive maturity. This page aggregates peer-reviewed research studies and scholarly articles that investigate the biological processes and management considerations relevant to prepubertal horses.
The KIT is a putative marker for differentiating spermatogonia in stallions. Putative markers have been discovered and are used to identify and separate certain lineage of spermatogonia. The KIT is a marker for differentiating spermatogonial stem cells in several species including mice and goats. The objectives of this study were (1) to investigate reproductive stage-dependent KIT expression patterns in stallions and (2) to identify spermatogonia subpopulations expressing KIT in stallion testes. To achieve these objectives, testicular samples were obtained during routine field castration of stallions. The reproductive stage of the stallions was classified as pre-pubert...
Expression of anti-Müllerian hormone (AMH) in the equine testis. Anti-Müllerian hormone (AMH) induces regression of Müllerian ducts during male fetal development; in the human male, it is expressed in Sertoli cells during fetal development (and through puberty). The objective was to characterize expression of AMH in the fetal, neonatal, prepubertal, and adult equine testis, as well as in equine cryptorchid testes, in select testicular neoplasms, and in intersex gonads, based upon immunohistochemistry (IHC). Testes were removed from equine fetuses at 5.5, 10, and 11 months of gestation, at 12 months of age, and from adult stallions. In addition, cryptorchi...
Electron microscopy of the ventricular lining associated with the hypothalamus and median eminence of prepubertal female horses. Scanning electron microscopy showed that cells in the infundibular recess of prepubertal female horses were devoid of cilia and sparsely covered with stubby microvilli and small blebs, whereas superior ventricular areas were covered with cilia. Ciliated ependymal cells in supraoptic-suprachiasmatic areas were associated with extensive blebbing, and folded tissue adjacent to the inferior borders of the mamillary body displayed distinct bands of cilia regularly interrupted by areas of sparsely ciliated cells which appeared to be undergoing ciliogenesis. Arcuate ependymal areas had well developed...