平菇菌糠对山羊瘤胃消化代谢的影响  

Effect of Spent Mushroom(Pleurotus ostreatus) Substrate on Ruminal Fermentation of Goat

作　　者：潘军[1,2] 曹玉凤[3] 韩志国[1] 高腾云[1] 付彤[1] 李改英[1] 廉红霞[1] 

机构地区：[1]河南农业大学牧医工程学院,郑州450002 [2]阿克苏职业技术学院,新疆阿克苏843000 [3]河北农业大学动物科技学院,河北保定071000

出　　处：《西北农业学报》2011年第2期27-32,共6页Acta Agriculturae Boreali-occidentalis Sinica

基　　金：国家肉牛产业技术体系(nycytx-38)

摘　　要：为了研究平菇菌糠对山羊瘤胃内环境和瘤胃消失率的影响,选用6只年龄、体质量接近(35.42 kg±3.96 kg)并装有永久瘤胃瘘管的本地白山羊羯羊,随机分为对照组(0%菌糠)和试验组(菌糠替代40%的花生秧),进行25 d(10 d预试期,15 d正式期)试验,于试验期第5天晨饲后0、2、4、6、8、10和12 h采集瘤胃液进行氨态氮和pH的测定,并于试验期第12天采用尼龙袋技术,测定苜蓿青干草在瘤胃中0、6、12、24、36、48和72 h的消失率。结果表明:①与对照组相比,试验组各个时间点瘤胃液的pH和氨态氮的质量浓度差异均不显著(P>0.05),并且其总体变化趋势一致;②试验组苜蓿青干草有机物72 h瘤胃消失率显著低于对照组(P<0.05),其余各个时间点差异均不显著(P>0.05);试验组显著提高了苜蓿青干草36、48和72 h粗蛋白质的瘤胃消失率(P<0.05),6 h粗蛋白质的瘤胃消失率极显著提高了14.17%(P<0.01);菌糠替代花生秧对苜蓿青干草干物质、中性洗涤纤维和酸性洗涤纤维各个时间点瘤胃消失率的影响差异均不显著(P>0.05)。因此,菌糠替代山羊粗饲料中40%的花生秧不影响瘤胃的pH和氨氮质量浓度,但可提高苜蓿干草粗蛋白的瘤胃消失率。In order to study the effect of spent mushroom（Pleurotus ostreatus） substrate（SMS） on ruminal fermentation of local goat,six ruminally cannulated local white wether goats（35.42±3.96 kg initial BW） were divided into control group（0%SMS） and experimental group（40% SMS instead of peanut vines）.experiment trial period was 25 days including pre-test period 10 days and experiment period 15 days,on the 5th day of the experiment period,the ruminal liquid was extracted every 2 h（from 0 to 12 h after feeding） from all the animals through the cannula for measuring ruminal liquid pH and ammonium nitrogen concentration.In the last 3 days of the experiment,nylon bag technique was used to measure alfalfa hay ruminal disappearance with 0,6,12,24,36,48 or 72 h incubation in rumen.The result showed that the overall change trend of two groups were closely fluctuant,no significant differences were observed in ruminal liquid pH and ammonium nitrogen concentration at each time after feeding（P0.05）.Ruminal organic matter disappearance of alfalfa hay with 72 h incubation in rumen was lower（P0.05）compared with control group,but no significant differences at other times;ruminal crude protein disappearance of alfalfa hay with 36,48 and 72 h incubation in rumen were significantly increased（P0.05） than control group,while ruminal crude protein disappearance of alfalfa hay with 6 h incubation in rumen were extremely increased by 14.17%（P0.01）;but no significant differences in ruminal disappearance of dry matter,acid detergent fiber and neutral detergent fiber with each time of alfalfa hay incubation in rumen.The result indicated that 40% SMS instead of peanut vines will not affect the ruminal liquid pH or ammonium nitrogen concentration,but the alfalfa hay ruminal crude protein disappearance was increased.

关 键 词：菌糠 山羊 瘤胃内环境 瘤胃消失率 

分 类 号：S827[农业科学—畜牧学]