| 混合酸处理全株玉米青贮品质及其对绵羊生长性能的影响 |
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| 引用本文： | 卢晓楠,丁兰兰,朱文广,马勇,玉柱,罗海玲. 混合酸处理全株玉米青贮品质及其对绵羊生长性能的影响[J]. 中国畜牧兽医, 2015, 42(11): 2945-2953. DOI: 10.16431/j.cnki.1671-7236.2015.11.019 |
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| 作者姓名： | 卢晓楠 丁兰兰 朱文广 马勇 玉柱 罗海玲 |
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| 作者单位： | 1. 中国农业大学动物科技学院, 动物营养学国家重点实验室, 北京 100193;2. 国家肉羊产业技术体系东营试验站, 东营 257335 |
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| 基金项目： | 农业部行业科技(201303061);国家肉羊产业技术体系(CARS-39) |
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| 摘 要： | 试验旨在研究添加不同浓度混合酸对全株玉米青贮品质的影响,以及饲喂后对杜寒杂交(杜泊羊×小尾寒羊)F1代绵羊生长性能的影响。试验混合酸比例组成为甲酸45%、丙酸45%、丙酸钠10%,以蜡熟期全株玉米为青贮原料,分为4组,混合酸添加浓度分别为0(对照组)、0.3%、0.6%、1%。结果表明,与对照组相比,各试验组均显著降低了青贮中乙酸/丙酸的比值(P<0.05),且0.3%及0.6%组对全株玉米青贮品质改善效果较好。CNCPS结果显示,0.6%组显著提高了青贮中的慢速降解蛋白(PB3)组分(P<0.05),同时降低了不可利用纤维(CC)组分(P>0.05),改善了青贮品质。与对照组相比,各试验组均有效地抑制了霉菌酵母菌的繁殖,改善了青贮的有氧稳定性。饲养试验结果发现,试验组绵羊平均日增重及料重比均优于对照组,其中0.6%及1%组绵羊的料重比显著优于对照组(P<0.05)。综上所述,混合酸处理能改善全株玉米青贮品质;0.6%浓度混合酸处理青贮饲喂绵羊后可显著提高杜寒杂交F1代绵羊的生长性能。
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| 关 键 词： | 混合酸 全株玉米青贮 品质 绵羊 生长性能 |
| 收稿时间： | 2015-05-15 |
Whole-plant Corn Silage Quality Treated with Mixed Acids and its Effect on Sheep Growth Performance |
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| LU Xiao-nan,DING Lan-lan,ZHU Wen-guang,MA Yong,YU Zhu,LUO Hai-ling. Whole-plant Corn Silage Quality Treated with Mixed Acids and its Effect on Sheep Growth Performance[J]. China Animal Husbandry & Veterinary Medicine, 2015, 42(11): 2945-2953. DOI: 10.16431/j.cnki.1671-7236.2015.11.019 |
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| Authors: | LU Xiao-nan DING Lan-lan ZHU Wen-guang MA Yong YU Zhu LUO Hai-ling |
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| Affiliation: | 1. State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China;2. CARS Dongying Experimental Station, Dongying 257335, China |
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| Abstract: | In order to explore different concentrations of mixed acids in improving quality of whole-plant corn silage and their effects on growth performance of Dorper×Han F1 sheep.4 levels of 45% formic acid,45% propionic acid and 10% sodium propionate were mixed,and 0(control),0.3%,0.6% and 1% were added to 4 groups of ripening period whole-plant corn.The results showed that compared with control group,the experimental groups could significantly decrease the proportion of AA/PA in silage (P<0.05);0.3% and 0.6% groups had the better effects.Based on the result of CNCPS,0.6% group significantly improved the PB3 component (P<0.05),reduced the CC component (P>0.05),and improved the quality of silage.Compared with control group,the experimental groups effectively inhibited the mold and yeast reproduction,improved the aerobic stability of silage.The feeding trial results showed that ADG and F/G of sheep in experimental groups were better than control group,and F/G of both 0.6% and 1% groups were significantly better than that in control group (P<0.05).In conclusion,treatment of mixed acids could improve the quality of whole-plant corn silage,and silage treated with 0.6% levels of mixed acids could significantly improve the growth performance of Dorper×Han F1 sheep. |
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| Keywords: | mixed acids whole-plant corn silage quality sheep growth performance |
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