《中国畜牧兽医》 ›› 2019, Vol. 46 ›› Issue (5): 1340-1352.doi: 10.16431/j.cnki.1671-7236.2019.05.011

• 动物营养与饲料科学 • 上一篇    下一篇

碱贮处理对真姬菇菌糠营养物质瘤胃降解率的影响

何祥波, 李颖, 许锦聪, 苗景, 甘乾福, 梁学武   

  1. 福建农林大学动物科学学院, 福州 350002
  • 收稿日期:2018-08-31 出版日期:2019-05-20 发布日期:2019-05-20
  • 通讯作者: 梁学武 E-mail:faulxw2000@163.com
  • 作者简介:何祥波(1994-),男,河南商城人,硕士生,研究方向:动物营养与饲料科学,E-mail:fafuhxb2017@163.com
  • 基金资助:

    福建省科技计划项目(2016N5002);福建农林大学科技发展资金项目(KF2015094);福建农林大学科技创新专项基金(CXZX2016012)

Effect of Alkali Storage Treatments on Ruminal Nutrients Degradability of Spent Mushroom Substrate

HE Xiangbo, LI Ying, XU Jincong, MIAO Jing, GAN Qianfu, LIANG Xuewu   

  1. College of Animal Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China
  • Received:2018-08-31 Online:2019-05-20 Published:2019-05-20

摘要:

试验旨在研究碱贮对真姬菇菌糠瘤胃降解率的影响,采用CaO、Ca (OH)2、CaO+3%尿素及Ca (OH)2+3%尿素4种处理,每种处理碱(CaO/Ca (OH)2)的添加量设3%、4%、5%及6% 4个水平,分别记作CO3、CO4、CO5、CO6,CH3、CH4、CH5、CH6,COU3、COU4、COU5、COU6,CHU3、CHU4、CHU5、CHU6,每个水平4个重复,空白组设2个,1组空白(CK)仅为真姬菇菌糠,另1组空白(CKU)为真姬菇菌糠+3%尿素,室温下碱贮30 d。选取6只装有瘤胃永久瘘管川中黑山羊作为瘤胃液供体,对真姬菇菌糠的干物质(DM)、中性洗涤纤维(NDF)、酸性洗涤纤维(ADF)、粗蛋白质(CP)体外发酵4、8、12、24、48、72 h的动态降解率进行测定与分析。结果表明,真姬菇菌糠经不同水平碱贮后,DM、CP、NDF、ADF的72 h降解率及其有效降解率(ED)均较对照组提高。其中,COU碱贮处理组效果最佳,不同水平COU碱贮处理组的72 h的DM瘤胃降解率较CKU组分别提高13.01%、20.03%、31.65%和32.33%(P<0.05);NDF瘤胃降解率较CKU组分别提高27.61%、45.78%、62.88%和50.23%(P<0.05);ADF瘤胃降解率较CKU组分别提高26.14%、45.75%、51.76%和39.65%(P<0.05);CP瘤胃降解率较CKU组分别提高12.33%、14.62%、20.55%和19.07%(P<0.05),其中综合评定COU5处理水平最优。

关键词: 真姬菇菌糠; 碱处理; 山羊; 瘤胃降解率

Abstract:

In order to study the effect of alkali storage on the ruminal nutrients degradability of spent mushroom substrate,four kinds of alkalis such as CaO,Ca(OH)2,CaO+3% urea and Ca(OH)2+3% urea were used for storage in this experiment.Each treatment of alkali (CaO/Ca(OH)2) had four levels (3%,4%,5% and 6% additive amount),that was named CO3,CO4,CO5 and CO6;CH3,CH4,CH5 and CH6;COU3,COU4,COU5 and COU6;CHU3,CHU4,CHU5 and CHU6,respectively,with 4 replicates per treatment.There were 2 blank groups,one group (CK group) was only spent mushroom substrate,the other one (CKU) was 3% urea in spent mushroom substrate.6 Chuanzhong Black goats with permanent rumen fistula were chosen for collecting ruminal fluids,and the dynamic degradation rates of DM,NDF,ADF,CP of spent mushroom substrate at 4,8,12,24,48,and 72 h were measured and analyzed,respectively.The results showed that the degradability and effective degradability(ED) of DM,CP,NDF and ADF were higher than those of control group after storage with different levels of alkali.Among them,the COU alkali storage treatment groups had the best effect.Compared to CKU group,the 72 h DM rumen degradability in the COU alkali storage treatment groups was increased by 13.01%,20.03%,31.65% and 32.33%(P<0.05),respectively.The degradability of NDF at 72 h was increased by 27.61%,45.78%,62.88% and 50.23% (P<0.05).And that of ADF was increased by 26.14%,45.75%,51.76% and 39.65% (P<0.05).The 72 h CP rumen degradability in the COU alkali storage treatment groups was increased by 12.33%,14.62%,20.55% and 19.07% (P<0.05),and COU5 treatment was optimal.

Key words: spent mushroom substrate, alkali treatment, goat, rumen degradability

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