目的是进行系统评价,以阐明妊娠和哺乳期母猪补充L-精氨酸对血浆激素水平的影响。牛奶生产和成分,母猪的身体状况和仔猪的表现。2023年4月,在以下数据库中进行了在线搜索和系统搜索:Embase,Scopus,SciELO,WebofScience,PubMed和科学直接。使用的关键词组合是母猪和精氨酸与泌乳;母猪和精氨酸与泌乳;母猪和精氨酸与妊娠;母猪和精氨酸与妊娠;母猪和精氨酸与妊娠;母猪和精氨酸与繁殖;仔猪和精氨酸;以及母猪和精氨酸与乳腺。总的来说,根据预先确定的标准选择了21篇具有原始数据的科学文章。在21篇文章中,七个(33%)报告了一些血浆激素的测量值,其中,六个人报告至少一种激素水平增加,即,雌二醇,胰岛素样生长因子1(IGF-1),胰岛素,促卵泡激素,生长激素或催乳素,补充L-精氨酸。在11项研究(52%)中评估了牛奶的参数,一个人报告蛋白质含量增加,和一个报告增加的IGF-1含量的牛奶补充了这种氨基酸。在评估仔猪性能参数的14项研究中,只有四个报告了接受补充的母猪的仔猪某些参数的改善。在妊娠和/或哺乳期的最后三分之一,母猪的饮食补充精氨酸可能会改变某些激素的血浆水平,这可能反映在乳腺组织的更大发育中,因此,促进仔猪性能的好处。然而,需要更多的研究来评估这种氨基酸补充剂对母猪生理的真正影响,总的来说,和哺乳仔猪的表现。
The objective was to conduct a systematic review to clarify the effects of l-arginine supplementation in pregnant and lactating sows on plasma hormone levels, milk production and composition, the body condition of sows and piglet performance. In April 2023, an online search and a systematic search were performed in the following databases: Embase, Scopus, SciELO, Web of Science, PubMed and Science Direct. The combinations of keywords used were sow and arginine and lactation; sow and arginine and lactating; sow and arginine and gestation; sow and arginine and gestating; sow and arginine and pregnancy; sow and arginine and reproduction; piglet and arginine; and sow and arginine and mammary gland. In total, 21 scientific articles with original data were selected according to preestablished criteria. Among the 21 articles, seven (33%) reported measurements of some plasma hormones, and among these, six reported an increase in the levels of at least one hormone, namely, estradiol, insulin-like growth factor 1 (IGF-1), insulin, follicle stimulating hormone, growth hormone or prolactin, with l-arginine supplementation. The parameters of milk were evaluated in 11 studies (52%), one reported an increase in protein content, and one reported an increase in IGF-1 content in milk with supplementation of this amino acid. Of the 14 studies that evaluated the performance parameters of piglets, only four reported improvements in some parameters of piglets from sows that received supplementation. Dietary supplementation of arginine for sows in the final third of gestation and/or lactation may alter the plasma levels of some hormones, which may reflect in greater development of the mammary gland tissue and, consequently, promote benefits on the performance of piglets. However, more studies are needed to evaluate the real impact of this amino acid supplementation on the physiology of the sows, in general, and the performance of suckling piglets.