益生素发酵小麦秸秆对羊生长性能、养分表观消化率及血清生化指标的影响
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摘要
研究旨在评价益生素发酵小麦秸秆对羊生长性能、养分表观消化率及血清生化指标的影响。选取体重相近的断奶小尾寒羊40只,随机分为对照组和试验Ⅰ、Ⅱ、Ⅲ组,对照组饲喂风干小麦秸秆,试验组分别用益生素发酵小麦秸秆替代30%、60%、90%的风干小麦秸秆,试验为期60 d。试验结果表明,试验Ⅰ、Ⅱ、Ⅲ组平均日增重较对照组分别增加12.8%、20.3%、13.6%(P<0.05),料肉比分别降低9.9%、15.2%、8.8%(P<0.05);相比于对照组,试验Ⅰ、Ⅱ组对干物质的表观消化率分别提高10.7%、12.0%(P<0.05),粗蛋白的表观消化率分别提高15.1%、16.7%(P<0.05),试验Ⅰ、Ⅱ、Ⅲ组对中性洗涤纤维的表观消化率分别提高12.4%、20.9%、11.0%(P<0.05),对酸性洗涤纤维的消化率分别提高11.8%、21.6%、13.2%(P<0.05);此外,试验Ⅰ、Ⅱ组血清中白蛋白浓度较对照组分别增加10.4%、15.1%(P<0.05),球蛋白浓度分别增加11.1%、13.6%(P<0.05),尿素氮浓度分别降低10.6%、14.2%(P<0.05)。试验结果表明,益生素发酵小麦秸秆能显著促进肉羊生长,提高养分利用率,添加量为60%时效果最好。
The purpose of this study was to evaluate the effects of probiotic fermented wheat straw(PFWS)on growth performance and apparent digestibility of nutrients in sheep. Selected 40 similar weight weaned small tail cold sheep,divided them into four groups, in which the control group was fed the air drying of wheat straw, groupⅠ, Ⅱ, Ⅲ fed the basal diet supplemented with probiotic fermented wheat straw instead of 30%, 60% and 90% of the air drying wheat straw, for60 d. Results revealed that ADG of groupⅠ, Ⅱ, Ⅲ increased by 12.8%, 20.3%, 13.6%(P<0.05), FCR decreased by 9.9%,15.2% and 8.8%(P< 0.05); groupⅠ, Ⅱdigestibility of DM increased by 10.7% and 12.0%(P<0.05), CP increased by 15.1%,16.7%(P<0.05), experiment groups digestibility of NDF increased by 12.4%, 20.9%, 11.0%(P<0.05), and ADF increased by 11.8%, 21.6% and 13.2%(P<0.05). In addition, serum albumin concentration in the groupⅠ, Ⅱincreased by 10.4% and15.1%(P<0.05), globulin increased by 11.1%, 13.6%(P<0.05), and urea nitrogen decreased by 10.6%, 14.2%(P<0.05).The results showed that the PFWS could significantly improve the production performance and digestibility of nutrients in sheep, and 60% PFWS exhibited the prefer result.
The purpose of this study was to evaluate the effects of probiotic fermented wheat straw(PFWS)on growth performance and apparent digestibility of nutrients in sheep. Selected 40 similar weight weaned small tail cold sheep,divided them into four groups, in which the control group was fed the air drying of wheat straw, groupⅠ, Ⅱ, Ⅲ fed the basal diet supplemented with probiotic fermented wheat straw instead of 30%, 60% and 90% of the air drying wheat straw, for60 d. Results revealed that ADG of groupⅠ, Ⅱ, Ⅲ increased by 12.8%, 20.3%, 13.6%(P<0.05), FCR decreased by 9.9%,15.2% and 8.8%(P< 0.05); groupⅠ, Ⅱdigestibility of DM increased by 10.7% and 12.0%(P<0.05), CP increased by 15.1%,16.7%(P<0.05), experiment groups digestibility of NDF increased by 12.4%, 20.9%, 11.0%(P<0.05), and ADF increased by 11.8%, 21.6% and 13.2%(P<0.05). In addition, serum albumin concentration in the groupⅠ, Ⅱincreased by 10.4% and15.1%(P<0.05), globulin increased by 11.1%, 13.6%(P<0.05), and urea nitrogen decreased by 10.6%, 14.2%(P<0.05).The results showed that the PFWS could significantly improve the production performance and digestibility of nutrients in sheep, and 60% PFWS exhibited the prefer result.
引文
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[3]王惠,安冬,刘梦璇,等.秸秆生物发酵饲料的经济效益及社会效益探讨[J].中国饲料,2018(20):86-89.
[4]郑春雷,郑爱荣,董朝民,等.小麦秸秆微贮饲料对西杂牛育肥效果的影响[J].畜牧与兽医,2016,48(9):83-86.
[5]王婷,王新峰,沈思军,等.日粮中发酵小麦秸秆替代水平对绵羊生长性能及血清生化指标的影响[J].畜牧与兽医,2017,49(11):30-35.
[6]Wegi T,Tolera A,Wamatu J,et al.Effects of feeding different varieties of faba bean(Vicia faba L.)straws with concentrate supplement on feed intake,digestibility,body weight gain and carcass characteristics of ArsiBale sheep[J].Asian-Australasian Journal of Animal Sciences,2018,31(8):1221-1229.
[7]毛建红,陶莲,许贵善,等.农作物秸秆生物发酵机理与饲养价值评定[J].饲料工业,2017,38(21):14-18.
[8]陈宇,郭春华,徐旭,等.添加微生物发酵剂对油菜秸秆品质的影响及在肉山羊上的应用[J].中国饲料,2018(3):76-81.
[9]魏炳栋,邱玉朗,陈群,等.发酵玉米秸秆对育肥羊生长性能、营养物质消化率及甲烷排放的影响[J].中国畜牧兽医,2016,43(12):3200-3205.
[10]韩颖洁.微生物发酵秸秆对肉羊生产性能和营养物质表观消化率的影响[D].保定:河北农业大学,2015.
[11]李林,赵宇,陈群,等.秸秆生物发酵饲料对肉羊生产性能与血液生化指标的影响[J].东北农业科学,2017,42(6):41-44.
[12]冯文晓,陶莲,王玉荣,等.菌制剂和酶制剂处理小麦秸秆对肉用绵羊生长性能和屠宰性能的影响[J].中国畜牧兽医,2017,44(6):1666-1672.