发酵木薯酒精糟工艺优化及其对肉鸭生长性能和肉品质的影响

发布时间：2018-04-23 11:17

本文选题：发酵木薯酒精糟 + 发酵工艺　；参考：《武汉轻工大学》2015年硕士论文

【摘要】：本试验研究了木薯酒精糟的发酵工艺,通过养殖试验对肉鸭生长性能、屠宰性能及肉品质的影响来评定发酵木薯酒精糟的营养价值。为发酵木薯酒精糟在动物生产中的应用提供基础数据和试验依据。研究分三个试验:试验一:木薯酒精糟发酵工艺参数研究。本试验以木薯酒精糟作为研究对象,采用单因素试验设计,分别研究不同水平初始水份、温度和时间,以发酵后木薯酒精糟的营养价值及酵母菌数作为检测指标,最终筛选出最佳的发酵工艺参数。经优化后木薯酒精糟发酵的最佳条件为发酵水分40%、发酵温度为32℃和发酵时间为24h。试验二、发酵木薯酒精糟对肉鸭生长性能和养分利用的影响。选用80羽体况健康的15日龄樱桃谷肉鸭按照体重随机分成4个处理组,分别为空白对照组、5%发酵木薯酒精糟组、10%发酵木薯酒精糟组和15%发酵木薯酒精糟组。每组五个重复,每个重复4羽。试验期为29d,研究发酵木薯酒精糟饲料对肉鸭生长性能、养殖成本和养分代谢率的影响。结果表明,发酵木薯酒精糟替代部分全价料对肉鸭生产性能无显著影响(P0.05);以养殖成本分析,与对照相比,添加5%和10%的发酵木薯酒精糟,每只肉鸭的经济效益分别提高了0.24和0.22元,15%的发酵木薯酒精糟反而降低了0.2元;随着发酵木薯酒精糟添用量的增加可以不同程度地降低樱桃谷肉鸭的养分代谢率,15%用量的干物质和粗灰分代谢率显著低于(P0.05)对照组。本试验结果表明,发酵木薯酒精糟替代部分全价料的5%-10%,对肉鸭生长性能、养殖成本和养分代谢率没有显著影响,是可行的。试验三、发酵木薯酒精糟饲料对屠宰性能、肉品质的影响。选用80羽体况健康的15日龄樱桃谷肉鸭按照体重随机分成4个处理组,分别为空白对照组、5%发酵木薯酒精糟组、10%发酵木薯酒精糟组和15%发酵木薯酒精糟组。每组五个重复,每个重复4羽。试验期为29d,研究发酵木薯酒精糟饲料对肉鸭屠宰性能和肉品质的影响。试验结果表明,发酵木薯酒精糟饲料对肉鸭屠宰性能和肉品质没有显著性差异(P0.05)。
[Abstract]:In this experiment, the fermentation technology of cassava alcohol distiller's grains was studied. The nutritional value of the fermented cassava alcohol distiller's distiller's grains was evaluated by the effects of the cultivation test on the growth performance, slaughter performance and meat quality of the meat ducks. The basic data and experimental data were provided for the application of the fermented cassava alcohol grains in the animal production. Three experiments were studied: Test 1: cassava alcohol In this experiment, a single factor experiment was used to study the initial water, temperature and time of different levels. The nutritional value and the number of Saccharomyces cerevisiae were used as the testing index, and the optimum fermentation process parameters were selected. The optimized tapioca alcohol was optimized. The optimum conditions for fermentation were 40% of fermented water, 32 for fermentation temperature and two for 24h. test, and the effect of fermented cassava alcohol grains on the growth performance and nutrient utilization of meat ducks. 15 day old Cherry Valley ducks with healthy 80 plumes were randomly divided into 4 treatment groups according to weight, respectively, and 5% fermented cassava alcohol grains. Group, 10% fermented cassava alcohol residue group and 15% fermented cassava alcohol distiller's grains group. Each group had five repetitions, each repeated 4 plumes. The experiment period was 29d. The effect of fermented cassava alcohol distiller's grains on the growth performance, culture cost and nutrient metabolism rate of meat ducks was studied. The results showed that the production performance of the fermented cassava alcohol distiller's distiller's grains had no significant effect on the production performance of meat ducks. (P0.05); with the analysis of culture cost, compared with the control, adding 5% and 10% fermented cassava alcohol grains, the economic benefit of each meat duck increased by 0.24 and 0.22 yuan, 15% of the fermented cassava alcohol grains decreased by 0.2 yuan, and the nutrient metabolism rate of Cherry Valley Meat Ducks could be reduced to varying degrees with the increase of the dosage of fermented cassava alcohol distiller's grains. The dry matter and the crude ash metabolism rate of the 15% dosage were significantly lower than that of the control group (P0.05). The results of the experiment showed that the 5%-10% of the fermented cassava alcohol distiller's grains instead of part of the full price material had no significant influence on the growth performance, the breeding cost and the nutrient metabolism rate of meat ducks. The experiment three, the effect of fermented cassava alcohol distiller's grains on the slaughter performance and meat quality The 15 day old Cherry Valley ducks with 80 plumes were randomly divided into 4 treatment groups according to their weight. They were blank control group, 5% fermented cassava alcohol distiller's grains, 10% fermented cassava alcohol grains and 15% fermented cassava alcohol grains. Each group was repeated and repeated 4 plumes. The test period was 29d, and the fermented cassava alcohol grains feed was studied for meat ducks. The results showed that there was no significant difference in slaughter performance and meat quality between the fermented cassava alcohol dregs and the meat (P0.05).

【学位授予单位】：武汉轻工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：S834.5

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