Wang Yaoyue, Shen Qingmiao, Zhong Shu, Chen Yulin, Yang Yuxin
College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China.
College of Animal Science and Technology, China Agricultural University, Beijing 100083, China.
Microorganisms. 2020 Jun 30;8(7):981. doi: 10.3390/microorganisms8070981.
Mulberry leaves, which have high nutritional value, have not been fully utilized. Few research systems have indicated whether mulberry leaves can replace traditional feed ingredients in goats. In this study, we investigated the effects of feeding white cashmere goats ensiled (Group E) or sun-dried mulberry leaves (Group S) on changes in ruminal microbial communities, rumen fermentation parameters and serum biochemical indices. The control group (Group C) received a typical total mixed ration (TMR). 16S rRNA gene sequencing revealed 209 genera belonging to 19 bacterial phyla dominated by and . Only the relative abundances of _UCG-009 were significantly different among the three groups ( < 0.05). Physiological and biochemical findings revealed that only the serum leptin concentrations were significantly decreased when mulberry leaves were added to the diets ( < 0.05). Correlation analysis revealed that _2 were significantly positively correlated with the butyrate concentration. These findings suggested that supplementation with mulberry leaves only induced minor changes in the abovementioned indicators, implying that the rumen fermentation status was still stable after adding mulberry leaves to the diets.
营养价值高的桑叶尚未得到充分利用。很少有研究体系表明桑叶是否能替代山羊的传统饲料成分。在本研究中，我们调查了给白绒山羊饲喂青贮桑叶（E组）或晒干桑叶（S组）对瘤胃微生物群落、瘤胃发酵参数和血清生化指标变化的影响。对照组（C组）采用典型的全混合日粮（TMR）。16S rRNA基因测序显示，19个细菌门中有209个属，以 和 为主。三组之间只有_UCG - 009的相对丰度存在显著差异（<0.05）。生理生化结果显示，日粮中添加桑叶时，只有血清瘦素浓度显著降低（<0.05）。相关性分析显示，_2与丁酸浓度显著正相关。这些发现表明，添加桑叶仅引起上述指标的微小变化，这意味着日粮中添加桑叶后瘤胃发酵状态仍保持稳定。
