饲草组合优化及其发酵品质评价

发布时间：2018-05-13 10:17

  本文选题：饲草 + 组合效应　； 参考：《内蒙古农业大学》2016年博士论文

【摘要】：贯彻落实党中央国务院在2015年中央一号文件中提出的发展“草牧业”政策,除了优化种植结构,增加优质饲草原料种植比例,提高优质饲草资源供给能力之外,通过科学合理的饲草加工技术,提高现有饲草资源的饲用转化利用效率,也是一条必由之路。为此,论文以玉米秸秆、苜蓿干草和燕麦干草为研究材料,以单种原料营养特性为依据,饲草组合效应优化为方法,发酵型全混合日粮调制为手段,肉羊高效转化利用为目的,综合运用草学、饲料学和动物营养学等学科领域的相关理论和研究方法,研究探讨了提高三种饲草饲用转化利用效率的理论依据和技术方法。论文试验主要采用单因素和双因素区组对比试验设计,结合回归分析和聚类分析等统计分析方法,系统研究了苜蓿干草、燕麦干草和玉米秸秆的营养特性、组合效应、发酵品质以及畜产品生产能力,得出如下结论：1、在饲草品质评价指数方面,虽然RFV指数具有简单快捷评价饲草品质的优势,但是在区分不同种类饲草的品质差异时,GI指数更为精确,更适合多种饲草的优化组合设计；2、结合三种饲草的品质特性,将三种饲草按不同比例混合后,其混合饲草的GI值(X)与IVDOM(Y)存在正相关性,回归方程分别为,y=1.2732x+28.274(R2=0.9077,P0.0001,N=20)：混合饲草的GI值(X)和多项组合效应值(Y)存在正相关性,y=0.0717x-0.5513(R2=0.7833,P0.0001,N=20)；经综合评价和聚类分析,R组合为最优组合：即玉米秸(50%)+苜蓿干草(30%)+燕麦干草(20%)；3、全混合日粮经过发酵处理后,可明显提高TMR的营养价值；随着FTMR贮藏时间的延长,FTMR的IVDMD和有氧稳定性显著高于(P0.05)对照组,在裹包贮藏45d后FTMR营养成分和发酵品质趋于稳定；4、采用饲草型FTMR饲喂试验羊,其育肥性能和屠宰性能显著高于(P0.05)TMR组和CS(玉米秸秆)组,生产性能最高;FTMR组羔羊肉的鲜味氨基酸量、氨基酸总量(TAA)和脂肪酸显著高于(P0.05)TMR组和CS(玉米秸秆)组,羔羊肉的风味最好。
[Abstract]:To implement the policy of developing "grass and animal husbandry" put forward by the CPC Central Committee and the State Council in the first document of the CPC Central Committee in 2015, in addition to optimizing the planting structure, increasing the proportion of high-quality forage raw materials planted, and improving the supply capacity of high-quality forage resources, It is also a necessary way to improve the efficiency of forage conversion and utilization through scientific and reasonable forage processing technology. Therefore, in this paper, corn straw, alfalfa hay and oat hay were used as the research materials, based on the nutritional characteristics of single raw material, the optimization of forage combination effect was used as the method, the fermentation type of total mixed diet was used as the means, and the meat sheep was converted and utilized efficiently. Based on the relevant theories and research methods in the fields of herbology, feed science and animal nutrition, the theoretical basis and technical methods for improving the conversion and utilization efficiency of three forage were studied. In this paper, the nutritional characteristics and combined effects of alfalfa hay, oat hay and corn straw were studied systematically by single factor and double factor block contrast test design, combined with regression analysis and cluster analysis. The fermentation quality and the production capacity of livestock products are as follows: 1. In the aspect of forage quality evaluation index, although RFV index has the advantage of simple and quick evaluation of forage quality, However, the GI index is more accurate in distinguishing the quality differences of different forage species, and is more suitable for the optimum combination design of various forage grasses. In combination with the quality characteristics of the three forage grasses, the three forage grasses are mixed in different proportions. There was a positive correlation between GI value (X) of mixed forage grass and IVDOMY). The regression equations were 1.2732x 28.274r20.9077P0.0001P0.0001N ~ (20): the GI value of mixed forage grass (X) and the multiple combination effect value (YY). There was a positive correlation between 0.717x-0.5513r2n 0.78333P0.0001N2020; the best combination was evaluated and the cluster analysis showed that R combination was the best combination: that is, corn straw 50m), alfalfa hay (3030m). After fermenting the diet, With the prolongation of FTMR storage time, the IVDMD and aerobic stability of FTMR were significantly higher than that of P0.05) control group. The nutritional composition and fermentation quality of FTMR tended to be stable after 45 days of storage. The experimental sheep were fed with forage type FTMR. Its fattening performance and slaughter performance were significantly higher than those of P0.05 TMR group and CSC group, and the content of fresh amino acids, total amino acids and fatty acids of lambs in FTMR group were significantly higher than those in P0.05 TMR group and CS5 TMR group, and the contents of total amino acids and fatty acids in lamb meat in FTMR group were significantly higher than those in P0.05 TMR group and CS5 TMR group. Lamb meat has the best flavor.
【学位授予单位】：内蒙古农业大学
【学位级别】：博士
【学位授予年份】：2016
【分类号】：S816

【参考文献】

中国期刊全文数据库 前10条

1 方精云;;我国草原牧区呼唤新的草业发展模式[J];科学通报;2016年02期

2 冯健;同仲彬;金鑫;尹云厚;严昌国;;饲喂生物发酵饲料对延边黄牛屠宰性能及氨基酸、脂肪酸的影响[J];饲料工业;2015年17期

3 秦旭锋;贾金凤;李亚奎;;张家口地区肉羊常用粗饲料分级指数的测定[J];黑龙江畜牧兽医;2015年05期

4 王丹;;旗正号角响 风劲好扬帆——全区掀起学习贯彻习近平总书记考察内蒙古重要讲话精神的热潮[J];内蒙古宣传思想文化工作;2014年02期

5 方玉梅;;秸秆微贮饲料制作技术[J];农民科技培训;2014年01期

6 邱玉朗;罗斌;于维;魏炳栋;李林;陈群;;发酵全混合日粮对肉羊生长性能与血液生化指标的影响[J];饲料研究;2013年12期

7 于凤春;;秸秆资源评价与利用研究[J];农民致富之友;2013年17期

8 苏玲玲;申煜;张志军;;纤维袋法测定饼粕类饲料原料中性洗涤纤维和酸性洗涤纤维含量的研究[J];饲料博览;2013年08期

9 张宏博;刘树军;腾克;贾雪晖;靳烨;;巴美肉羊屠宰性能与胴体质量研究[J];食品科学;2013年13期

10 兰晓玲;郭玉明;贺俊林;;我国秸秆饲料化利用技术研究综述[J];安徽农学通报;2013年13期

中国重要会议论文全文数据库 前1条

1 王福金;西野直树;王靖宇;;关于普通TMR与发酵TMR的好气安定性的比较[A];畜牧业环境、生态、安全生产与管理——2010年家畜环境与生态学术研讨会论文集[C];2010年

中国博士学位论文全文数据库 前2条

1 冯骁骋;天然草地牧草青贮机理及品质调控研究[D];内蒙古农业大学;2014年

2 王晓光;饲草型全混日粮饲用价值评价研究[D];内蒙古农业大学;2011年

中国硕士学位论文全文数据库 前10条

1 王法明;基于GI与CBI理论的反刍动物饲料组合效应的研究[D];黑龙江八一农垦大学;2014年

2 王璐璐;秸秆饲粮化的初步研究[D];江南大学;2014年

3 王倩;内蒙古牛羊肉脂肪酸测定及其特征研究[D];内蒙古农业大学;2014年

4 刘延国;侧耳菌紫外诱变选育及发酵玉米秸秆营养价值的评定[D];东北农业大学;2013年

5 王莉梅;全混合发酵饲料对羊肉品质的影响[D];内蒙古农业大学;2013年

6 许宇薇;不同微生物制剂及其组合处理对微贮稻草营养价值的影响评定[D];江西农业大学;2012年

7 陈明凤;纤维素的去结晶[D];华南理工大学;2011年

8 尹强;天然防霉剂在草捆安全贮藏中的应用研究[D];内蒙古农业大学;2010年

9 李述刚;南疆主要地方品种绵羊肌肉营养成分测定研究[D];华中农业大学;2009年

10 王娟;提高紫花苜蓿青贮发酵品质的研究[D];南京农业大学;2009年

，

本文编号：1882736