六种有机饲料的化学成分、氨基酸含量及瘤胃降解特性分析
Analysis of Chemical Composition, Amino Acid Content, and Rumen Degradation Characteristics of Six Organic Feeds.
作者信息
Luo Chenglong, Wang Donghai, Lu Na, Li Haiqing, Liu Gaofei, Cao Zhijun, Yang Hongjian, Li Shengli, Yu Xiong, Shao Wei, Wang Wei
机构信息
College of Animal Science, Xinjiang Agricultural University, Urumqi 830052, China.
College of Animal Science and Technology, China Agricultural University, Beijing 100193, China.
出版信息
Animals (Basel). 2022 Mar 9;12(6):682. doi: 10.3390/ani12060682.
The current study was designed to investigate the chemical composition, amino acid content, and rumen degradation characteristics (nylon bag method) of six organic feeds to illustrate their feeding values. The feeds analyzed were: corn grain (CG), soybean cake (SC), wheat bran (WB), corn silage (CS), oat hay (OT), and alfalfa hay (AF). Our results showed that the contents of crude protein (CP) (47.46%) and ether extract (EE) (8.23%) in SC were highest. The contents of neutral detergent fiber (NDF) (65.00%) and acid detergent fiber (ADF) (39.16%) in OT were highest. The contents of total amino acid (TAA) (42.95%) and essential amino acid (EAA) (19.73%) in SC were highest. Among SC, WB, and CG, the effective degradation rate (ED) of dry matter (DM) is SC (87.89%) > WB (73.32%) > CG (64.25%); the ED value of CP is CG (82.37%) > WB (82.40%) > SC (60.47%). Among CS, OT, and AF, the effective degradation rate (ED) of DM is CS (72.68%) > OT (59.97%) > AF (58.89%); the ED value of CP is AF (76.46%) > CS (72.03%) > OT (71.99%). In conclusion, the chemical composition, amino acid content, and rumen degradation rate of SC and AF were better than those of the other four feeds.
本研究旨在调查六种有机饲料的化学成分、氨基酸含量和瘤胃降解特性（尼龙袋法），以阐明它们的饲喂价值。所分析的饲料有：玉米谷物（CG）、豆粕（SC）、麦麸（WB）、玉米青贮（CS）、燕麦干草（OT）和苜蓿干草（AF）。我们的结果表明，豆粕中粗蛋白（CP）含量（47.46%）和乙醚提取物（EE）含量（8.23%）最高。燕麦干草中中性洗涤纤维（NDF）含量（65.00%）和酸性洗涤纤维（ADF）含量（39.16%）最高。豆粕中总氨基酸（TAA）含量（42.95%）和必需氨基酸（EAA）含量（19.73%）最高。在豆粕、麦麸和玉米谷物中，干物质（DM）的有效降解率（ED）为豆粕（87.89%）＞麦麸（73.32%）＞玉米谷物（64.25%）；CP的ED值为玉米谷物（82.37%）＞麦麸（82.40%）＞豆粕（60.47%）。在玉米青贮、燕麦干草和苜蓿干草中，DM的有效降解率（ED）为玉米青贮（72.68%）＞燕麦干草（59.97%）＞苜蓿干草（58.89%）；CP的ED值为苜蓿干草（76.46%）＞玉米青贮（72.03%）＞燕麦干草（71.99%）。总之，豆粕和苜蓿干草的化学成分、氨基酸含量和瘤胃降解率优于其他四种饲料。
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