模拟猪舍发酵床垫料的筛选  

Screening on different litter ratios of simulate pig fermenting-bed system

作　　者：张强龙[1] 滚双宝[1] 赵芳芳[1] 蔡婷[1] 

机构地区：[1]甘肃农业大学动物科学技术学院,甘肃兰州730070

出　　处：《甘肃农业大学学报》2015年第3期1-6,22,共7页Journal of Gansu Agricultural University

基　　金：科技部支撑计划(2012BAD14B10);甘肃省科技创新项目(GNCX-2009-13;GNCX-2012-45);兰州市人才创新创业科技计划项目(2014-RC-83)

摘　　要：为了探索能替代发酵床原料稻壳和锯末的新型垫料,比较分析不同垫料配比对发酵效果的影响,试验采集了兰州当地的土著微生物用作发酵床菌种,并设定了8种垫料配比组合,分别为:按稻壳和锯末质量比1∶1制作的常规垫料(CK)、70%常规垫料+30%玉米秸秆(A1)、50%常规垫料+50%玉米秸秆(A2)、30%常规垫料+70%玉米秸秆(A3)、70%常规垫料+30%玉米芯(B1)、50%常规垫料+50%玉米芯(B2)、30%常规垫料+70%玉米芯(B3)、40%常规垫料+30%玉米秸秆+30%玉米芯(AB).在摸拟发酵床条件下,通过测定垫料表面温度、25cm处温度、垫料表面湿度、氨气含量等指标,选择最佳垫料配比.结果表明:B3组垫料表面平均温度最高(15.9±0.56)℃,与A3、AB组差异不显著(P>0.05),与其他组差异显著(P<0.05);AB组垫料25cm处平均温度最高(32.3±2.97)℃,与A3、B3组差异不显著(P>0.05),与其他组差异显著(P<0.05);AB组垫料氨气平均含量(6.84±0.37)mg/m3均显著低于其他组(P<0.05).综合评价,AB、B3、A33组发酵效果相对较好.In order to explore a new litter ratio which can replace traditional litter,comparative analysis was made the effect of different litter ratio on fermenting-bed system.This experiment collected local indigenous microorganisms applied to fermentation bed,and set the ratio of 8kinds of combinations,including：according to the rice hulls and sawdust,weighting ratio 1∶1made for traditional litter（CK）,70%traditional litter＋30% corn straw（A1）,50% traditional litter＋ 50% corn straw（A2）,30% traditional litter＋70% corn straw（A3）,70%traditional litter＋30% corncod（B1）,50% traditional litter ＋50% corncod（B2）,30% traditional litter＋70% corncod（B3）,40% traditional litter＋30% corn straw＋30% corncod（AB）.Under the experimental condition,litter surface temperature,25 cm deep temperature,RH in barrel,NH3 concentration were determined in order to screen the optimum combination.Results showed that the B3 surface temperature was the highest（15.9±0.56）℃,contrast with A3 and AB were no significant（P〈0.05）,versus other groups were significant（P〈0.05）.The AB＇s 25 cm deep temperature was the highest（32.3±2.97）℃,contrast with A3 and B3 were no significant（P〈0.05）,versus other groups were signifi-cant（P〈0.05）.The AB＇s NH3 concentration was the lowest（6.84±0.37）mg/m3,versus other groups were significant（P〈0.05）.Comprehensive analysis suggests that A3,B3 and AB have a better fermentation effect.

关 键 词：猪舍 发酵床 氨气 环境质量 垫料 

分 类 号：S815.2[农业科学—畜牧学]