A review on reproduction in South American camelids.

摘要: Abstract In this paper, aspects of reproductive physiology and endocrinology, as well sexual behaviour in South American camelids are reviewed. Because the many unique features reproduction these animals, application advanced breeding techniques that routinely used other domestic species has been slow and, some cases, not applicable. Relatively high embryonic loss capacity to carry only one offspring at a time limit production females. Furthermore, 20% females do conceive following mating. Research is needed elucidate causes loss, particularly relation preferential location embryos left uterine horn apparent differential luteolytic activity two horns. A fuller understanding endocrine changes mechanisms accompanying folliculogenesis, estrus, induction ovulation luteal regression may led treatments provide better control enhance quality viability eggs shed. male, hormonal interactions involved facilitating libido need be established underlying declining resulting from continued exposure estrous females, identified. More importantly, there develop routine method collect semen animals on farm, or studs. Deficiencies area have long hampered evaluation sires through proper assessment their artificial insemination. addition, establishment freeze obvious advantages for breeding, including crossbreeding between improve products such fibre assist preservation more endangered New World camelids.