摘要
Artificial insemination (AI) in domestic animals is an important tool to maximise the use of genetically superior males and thereby insure rapid genetic progress. However, the application of AI in camelids has been hindered by the difficulties involved in collecting, as well as handling the semen due to the viscous nature of the seminal plasma. This review describes the challenges of semen collection and discusses the role of seminal plasma as well as the reasons for the viscosity and how to liquefy it so that ejaculates can be more accurately evaluated. It also reports on the use of various extenders used for liquid storage of fresh and chilled semen and how pregnancy rates are affected by numbers of spermatozoa inseminated, site of insemination and timing of insemination in relation to GnRH injection given to induce ovulation. In addition, this paper reviews the latest research in cryopreservation of camel semen and addresses the various problems involved and possible improvements that can be made so that pregnancy rates can be increased with frozen semen.
摘要译文
家畜中的人工授精(AI)是最大限度地利用遗传优势雄性的重要工具,从而确保快速的遗传进展。然而,AI在骆驼科动物中的应用受到收集困难的困扰,以及由于精浆的粘性而处理精液。描述了精液收集的挑战,并讨论了精浆的作用以及粘度的原因以及如何将其液化以便可以更准确地评估精液。它还报告了用于液体储存新鲜和冷藏精液的各种增量剂的使用情况,以及怀孕率如何受到精子受精数量的影响,与GnRH注射相关的授精部位和授精时间用于诱导排卵。此外,关于骆驼精液冷冻保存的最新研究,解决了所涉及的各种问题以及可能的改进,以便在冷冻精液中提高怀孕率。
Julian A.Skidmore[a];Clara M.Malo[a];Elizabeth G.Crichton[a];Jane M.Morrell[b];Budhan S.Pukazhenthi[c];. An update on semen collection, preservation and artificial insemination in the dromedary camel (Camelus dromedarius)[J]. Animal Reproduction Science, 2018,194: 11-18