Histological characteristics and steroid concentration of ovarian follicles at different stages of development in pregnant and non-pregnant dairy cows 

Effects of antioxidant vitamins on newborn and placental traits in gestations at high altitude: comparative study in high and low altitude native sheep 

Alpaca semen characteristics under free and directed mounts during a mating period 

Biological activity of the seminal plasma of alpacas, stimulus for the production of LH by pituitary cells 

Morphometric characterization and classification of alpaca sperm heads using the Sperm-Class Analyzer (R) computer-assisted system 

Distribution of keratins, vimentin, and actin in the testis of two South American camelids: Vicuna (Vicugna vicugna) and Llama (Lama glama). An immunohistochemical study 

hCG-Induced Ovulation in Thoroughbred Mares Does Not Affect Corpus luteum Development and Function During Early Pregnancy 

Fertility in a high-altitude environment is compromised by luteal dysfunction: the relative roles of hypoxia and oxidative stress 

Plasma progesterone in alpaca (Lama pacos) during pregnancy, parturition and early postpartum 

Alpaca semen characteristics previous to a mating period