湿玉米纤维饲料的营养价值评定

发布时间：2018-06-06 15:08

本文选题：湿玉米纤维饲料 + 羊草　；参考：《饲料工业》2017年09期

【摘要】：试验通过对湿玉米纤维饲料(WCGF)与常用粗饲料(羊草、全株玉米青贮和苜蓿),以及与玉米营养成分进行比较,对WCGF营养价值进行系统的评定。通过开展WCGF与3种常用粗饲料(羊草、全株玉米青贮和苜蓿),以及与玉米的化学组分、氨基酸组成、瘤胃降解率进行比较研究。试验结果表明:与常用粗饲料相比,WCGF粗蛋白(CP)高于羊草和玉米青贮(P0.05)。中性洗涤纤维(NDF)、酸性洗涤纤维(ADF)和钙(Ca)处于最低水平(P0.05),而磷(P)含量处于最高水平,不可利用纤维(CC)(%CHO)含量低(P0.05),谷氨酸(Glu)、亮氨酸(Leu)和脯氨酸(Pro)则高于其他3种常用粗饲料(P0.05)。有效降解CP和有效降解NDF均高于其他3种常用粗饲料(P0.05);与玉米营养成分相比,WC-GF淀粉含量显著低于玉米(P0.05);CP、NDF、ADF、P和灰分含量显著高于玉米(P0.05);WCGF氨基酸含量、中度降解蛋白(PB2)(%CP)、可利用纤维(CB2)(%CHO)和有效降解CP显著高于玉米(P0.05)。结论:WCGF含有较高含量的可消化纤维、粗蛋白和氨基酸,是理想的非饲草的纤维性饲料。
[Abstract]:The nutritional value of WCGF was evaluated systematically by comparing WCGF with common forage (Leymus chinensis, whole plant corn silage and alfalfa) and with corn. The chemical composition, amino acid composition and rumen degradation rate of WCGF and three common forages (Leymus chinensis, whole corn silage and alfalfa) were studied. The results showed that the CPP of WCGF was higher than that of Leymus chinensis and corn silage (P0.05). The content of neutral detergent fiber (NDF), acid detergent fiber (ADF) and calcium (Ca) were at the lowest level (P 0.05), while the content of phosphorus (P) was the highest, and the content of CCO was low (P 0.05), glutamate Gluten, leucine (Leu) and proline (P) were higher than those of the other three kinds of crude feed (P 0.05). The effective degradation of CP and the effective degradation of NDF were both higher than those of the other three common forage fodder (P0.05N), and the starch content of WC-GF was significantly lower than that of P0.05CGF and the content of Amino acid (Amino acid) of P0.05WCGF was significantly higher than that of P0.05CGF. The medium degradable protein (PB2) and the effective degradation of CP were significantly higher than that of corn (P0. 05). ConclusionWCGF has a high content of digestible fiber, crude protein and amino acid, and it is an ideal non-forage fiber feed.
【作者单位】：黑龙江省兽药饲料监察所;东北农业大学动物科学技术学院;
【基金】：基金项目:国家奶牛产业技术体系[CARS-37]
【分类号】：S816.15

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