添加有效微生物对绵羊日粮营养物质消化率、瘤胃发酵和产气量的影响

M. Yacout, Alaa Yahia EL-BADAWI, M. Khalel, S. Atia, A. Hassan
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引用次数: 0

摘要

本试验旨在确定利用活化有效微生物(EM-Bokashi)发酵的副产物(甜菜浆(SBP)、葡萄籽(GS)、橄榄饼(OC)、柑橘浆(CtP)和荷荷巴粉(JM))添加到绵羊日粮中的适宜类型,以获得巴尔基羊最佳的营养物质消化率和瘤胃特性。本试验以5只育成瘘管的雌性进行体外瘤胃发酵活性试验,15只雄性进行消化率试验。EM处理使细胞壁含量减少。GS和CtP具有较高的采食量和消化系数;JM较低,FI也较低。SBP和JM的pH和NH3浓度较高,而GS和CtP的pH和NH3浓度较低。它们具有较高的总挥发性脂肪酸(TVFA)浓度、乙酸百分比和乙酸/丙酸(A/P)比。JM具有较低的醋酸盐和A/P,较高的丙酸盐和丁酸盐。发酵24h后,GS和CtP的产气量较高,动力学参数也较高,但产甲烷量较少,ME (MJ/kg DM)、OMD(%)和微生物蛋白合成较高。综上所述,饲用GS或CtP博卡什均可提高绵羊生产能力,而饲用JM博卡什应与其他饲料配合使用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Impact of effective microbes (em) bokashi supplementation on nutrients digestibility, rumen fermentation and gas volume production in diets of sheep
The present study was conducted to determine the appropriate type of by-products {sugar beet pulp (SBP), grape seeds (GS), olive cake (OC), citrus pulp (CtP), and jojoba meal (JM)} fermented with activated effective microorganisms (EM-Bokashi) to be integrated into the diet of sheep to obtain the best nutrient digestibility and rumen characteristic of Barki sheep. An in vitro experiment was carried out on five fistulated females for rumen fermentation activity, while 15 males were used for digestibility trials. Treatment with EM caused less cell wall content. GS and CtP had higher feed intake (FI) and digestibility coefficients; the lower was found for JM as well less FI. SBP and JM had a higher pH and NH3 concentration, while they were less for GS and CtP. Those had higher total volatile fatty acids (TVFA's) concentration, percentage of acetate, and acetic to propionic (A/P) ratio. JM had less acetate, A/P and higher propionate and butyrate. Higher gas volume after 24h fermentation was noticed for GS and CtP, they were higher kinetic parameters as well, but they were less methane production and more ME (MJ/kg DM), OMD (%) and microbial protein syntheses. Therefore, in conclusion, feeding Bokashi of GS or CtP to sheep can improve productivity, while using Bokashi of JM should be combined with other feeds.
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