Van Saun R J
Department of Veterinary & Biomedical Sciences, Pennsylvania State University, University Park, PA 16802-3500, USA.
Theriogenology. 2008 Aug;70(3):508-14. doi: 10.1016/j.theriogenology.2008.04.025. Epub 2008 Jun 3.
The role of nutrition, especially the role of energy and protein status, on reproductive performance of production animals has been well documented. Comparatively, there is a true paucity of literature regarding nutritional mediation of reproductive performance in llamas and alpacas. Following seasonal patterns of feed availability in South America, adverse effects of nutritional deprivation on reproductive performance are well recognized, suggesting similar nutrition-reproduction interrelationships. Camelids, with their unique metabolism, may have some peculiar interrelationships between reproduction and protein and phosphorus nutrition. This presentation will review basic issues of energy and protein nutrition relative to reproductive performance in llamas and alpacas, based primarily on hypotheses and extrapolation from other species. Opportunities for research on this topic will be discussed, including preliminary data from current research.
营养，尤其是能量和蛋白质状况，对生产动物繁殖性能的作用已有充分记载。相比之下，关于美洲驼和羊驼繁殖性能的营养调节方面的文献确实匮乏。遵循南美洲饲料供应的季节性模式，营养缺乏对繁殖性能的不利影响已得到充分认识，这表明存在类似的营养与繁殖的相互关系。骆驼科动物具有独特的新陈代谢，其繁殖与蛋白质和磷营养之间可能存在一些特殊的相互关系。本报告将主要基于对其他物种的假设和推断，回顾与美洲驼和羊驼繁殖性能相关的能量和蛋白质营养的基本问题。将讨论该主题的研究机会，包括当前研究的初步数据。
