Effect of Partial Replacement of Steam Rolled Corn With Soybean Hulls or Prickly Pear Cactus in the Horse's Diet in the Presence of Live Saccharomyces cerevisiae on In Vitro Fecal Gas Production     

《Journal of Equine Veterinary Science》2016

The aim of the study was to evaluate the fecal fermentation of partial replacing steam rolled corn with soybean hulls (SH) or prickly pear cactus (PC) as energy source in horse diets, in the presence of Saccharomyces cerevisiae. Steam rolled corn was replaced with SH at 0% (control), 7.5% (SH75), and 15% (SH150) in the first trial, whereas it was replaced with PC at 0% (control; the same of the first trial), 7.5% (PC75), and 15% (PC150) in the second trial. Yeast of S. cerevisiae was added at 0, 2, and 4 mg/g dry matter (DM) of incubated substrates. Fecal inoculum was obtained from four adult English Thoroughbred horses fed on an amount of commercial concentrate and oat hay ad libitum. Interactions observed between PC rations and yeast doses for the asymptotic gas production (GP), the rate of GP and carbon dioxide (CO₂) production during some incubation hours. Moreover, with no effect due to SH rations (P > .05), increased (P < .05) rate of GP was observed with the ration PC75 compared with other rations. Besides, PC75 and PC150 rations with 0 mg yeast/g DM linearly decreased (P < .05) CO₂ production at some incubation hours. However, SH75 and SH150 ration had increased (P = .005) DM degradability (DMD). Yeast addition at 2 mg/g DM increased the asymptotic GP (P = .048) with the SH75 and PC150 rations. The level of 4 mg yeast/g DM increased the asymptotic GP (P = .048) from the SH150 ration. Yeast addition at 2 and 4 mg/g DM increased (P < .05) ​the asymptotic GP from PC75 and PC150 rations, respectively, with increasing DMD with the both doses. Yeast addition increased (P < .05) CO₂ production from SH75, SH150, PC75, and PC150 rations. It could be concluded that SH and PC can replace steam rolled corn at levels of 7.5% to 15% without negative effect of fermentation kinetics and with better fermentation performance in the presence of yeast at 2 mg/g DM of substrates.  相似文献   

Effects of soybean raffinose on growth performance,digestibility,humoral immunity and intestinal morphology of growing pigs     

Zhu Zeng  Yalin Zhang  Jun He  Jie Yu  Xiangbing Mao  Ping Zheng  Yuheng Luo  Junqiu Luo  Zhiqing Huang  Bing Yu  Daiwen Chen 《动物营养（英文）》2021,7(2):393

There are appreciable does of raffinose in soybean, but the impacts of raffinose on pigs are poorly investigated. We used 2 experiments to investigate the influence of soybean raffinose on growth performance, digestibility, humoral immunity and intestinal morphology of growing pigs. In Exp. 1, a total of 30 crossbred (Duroc × Landrace × Yorkshire) barrows (21.93 ± 0.43 kg) were randomly divided into 3 groups, and were fed with the control diet, the control diets supplemented with 0.2% and 0.5% raffinose, respectively, for 21 d. Results showed that the addition of 0.2% or 0.5% raffinose reduced (P < 0.05) average daily feed intake (ADFI), average daily gain (ADG) and nutrient digestibility, and dietary 0.5% raffinose increased the ratio of feed to gain (P < 0.05). For serum indexes, dietary 0.5% raffinose decreased growth hormone and increased glucagon-like peptide-2, immunoglobulin G, tumor necrosis factor-α (TNF-α) and interleukin-6 concentration (P < 0.05). In Exp. 2, a total of 24 crossbred barrows (38.41 ± 0.45 kg) were randomly divided into 3 groups, and were fed with the control diet (ad libitum), the raffinose diet (0.5% raffinose, ad libitum), and the control diet in the same amount as the raffinose group (feed-pair group) for 14 d, respectively. Compared with the control diet, dietary 0.5% raffinose decreased ADFI (P < 0.05). Intriguingly, the raffinose group had lower ADG than the feed-pair group, lower nutrient digestibility, lower amylase activity in duodenum, lower amylase, lipase and trypsin activities in jejunum and higher TNF-α concentration in serum compared with the other 2 groups, and a higher ratio of villus height to crypt depth compared with the control group (P < 0.05). These results showed that soybean raffinose could reduce feed voluntary intake and body gain while improving intestinal morphology without a significant negative influence on immunity. Taken together, dietary raffinose could decrease growth performance by reducing both feed intake and nutrient digestibility while inducing humoral immune response of growing pigs.  相似文献   

Evaluation of Physical Characters of soybean in the northeast region of China     

秦智伟  周秀艳  刘宏宇  怀凤涛  焦光纯 《中国农学通报》2005,21(4):133-133

以东北三省86份大豆品种资源为材料,对其与大豆加工适应性有关的物理性状进行分析评价。为东北三省大豆品质育种及选择适于不同加工用途的专用大豆品种提供依据。结果表明：黑龙江省大豆品种的平均表现是发芽率较高,蒸煮大豆硬度低,浸泡大豆的完整率高,破皮和破瓣率较低;吉林省大豆品种的平均表现是原料大豆的完整率高,障碍率低,黄度值较大,浸泡大豆硬度大,石豆率较低;辽宁省大豆品种的平均表现为百粒重大,原料大豆的障碍率高,浸泡和蒸煮大豆的硬度较大,浸泡大豆破皮和破瓣率较高,发芽率、黄度值较低。  相似文献   

黄淮夏大豆形态性状的遗传研究     

贺春林  薛应离 《华北农学报》1991,6(2):25-29

本文以黄淮地区6个夏大豆品种(系)通过双列杂交保留下来的F_3代材料,研究大豆6个形态性状的遗传特性.结果表明,株高、有效分枝数、主茎节数、主茎荚丛数和茎粗5个性状均符合加性—显性模型.而底荚高则存在非等位基因之间的互作效应.株高、有效分枝数、主茎节数和主茎荚丛数为部分显性,茎粗存在超显性现象.主茎节数和主茎荚丛数可能有相似的遗传特点.豫豆8号大豆带有较多的控制株高的显性基因,油84-30大豆带有较多的控制分枝和茎粗的显性基因,而尖顶大白角大豆控制主茎节数和美丛数的显性基因较多.  相似文献   

大豆高产优质施肥研究与应用   总被引：18，自引：1，他引：18  

郭庆元  李志玉  涂学文 《中国农学通报》2003,19(3):89-89

本文概述了大豆营养特性与施肥的研究结果，提出了高产施肥的关键技术。大豆营养特性：一是对主要营养元素的吸收量较稻、麦作物高（等量籽粒产量），生产100kg大豆约吸收6.5~8.5kg N，1.8~2.8kg P2O5，2.7~3.7kg K2O，3.5~4.8kg CaO，1.8~2.9kg MgO，4.5~9.5g Zn。二是对主要营养元素的吸收积累高峰在花荚期，N、P、K的60~70%在在此期吸收，而不同于稻麦等作物。三是总氮源的40~60%来源共生固氮，而共生固氮又受土壤N、P、K、Ca、Mo、Zn等及土壤PH值影响。四是大豆成熟阶段营养器官的养分向籽粒转移率高，Ｎ、Ｐ、Ｋ分别达58~77%，60~75%，45~75%。大豆施用N、P、K、Zn、Mo、B肥均显著提提高产量，合理配合施用可达到180~300kg/亩。N、P提高籽粒蛋白质含量，K与Zn提高脂肪含量，P、K、Zn、Mo及少量N肥可提高结瘤固氮率。N、P、K和多种微肥可减轻东北连作大豆的不利因子危害，大幅度增加产量。大豆高产施肥，一是根据土壤、植株养分含量确定施肥数量，二是有机肥与N、P、K肥及多种微肥配合施用，三是注重前茬作物施肥，增肥土壤，四是根据土壤条件、耕作制度、大豆品种特性确定施肥数量、方法、时期。中等肥力高产施肥一般应施用N 8，P2O5 4，K2O 4，ZnSo4 1.5(kg/亩)，钼酸铵20~30g/亩，P、K、Zn用作底或种肥，N肥钼肥种肥花期追肥各半，另于花荚期喷施P、N、Mo肥二次  相似文献   

Fe3+浸种对大豆种子萌发的影响   总被引：2，自引：0，他引：2  

杨卫韵  徐根娣  钱宝英  刘鹏 《种子》2004,23(4):32-34

以浙春3号大豆为研究材料,设置了8个Fe3 浸种浓度(0mg/kg,0.001mg/kg,0.01mg/kg,0.1mg/kg,1mg/kg,10mg/kg,100mg/kg,1000mg/kg),研究了不同浓度的铁浸种处理对大豆种子萌发的影响.结果表明:以不同浓度Fe3 浸种后,大豆种子的发芽率、单株鲜重、发芽指数、活力指数均提高,外渗电导率降低.以0.1～100mg/kg最为适宜.  相似文献   

大豆化学诱变育种及其规律的研究   总被引：12，自引：0，他引：12  

杜连恩  魏玉昌 《华北农学报》1989,4(2):39-43

应用化学诱变剂处理大豆种子,对M_1代植株的生育及形态均有强烈的抑制作用.M_1代所产生的形态变异主要是由于化学物质扰乱了植株生理而产生生理损伤所致.在M_2代植株各性状中以分枝数、株高、单株荚数的遗传变异系数较大,说明这些性状选择的潜力是大的,通过选择容易达到预期目标.诱变M_3代绝大多数性状仍在分离.加强选择,能选出早熟、大粒、农艺性状好、丰产的新品系.  相似文献   

发酵豆粕的生产现状及产品质量评定研究   总被引：2，自引：0，他引：2  

樊春光  尹清强  王鹏  孙俊伟  王卫民 《江西农业学报》2012,24(7):156-159,176

介绍了国内主要发酵豆粕厂家的生产工艺流程、产品质量评定指标及鉴别方法。  相似文献   

大豆新品种中黄30种植密度试验   总被引：1，自引：0，他引：1  

王瑞霞  石爱丽  崔海明  张扬  郭玉炜  胡颖 《河北农业科学》2013,(2)

为了探索大豆新品种中黄30在承德地区的最佳种植密度，试验采用回归设计法，设种植密度18.0万、22.5万、27.0万、33.8万、36.0万和45.0万株/hm 2计6个处理，对不同种植密度下的大豆病虫害发生情况和产量进行了分析；并对其种植密度与产量的关系进行了回归分析，建立了回归方程。结果表明：在试验设定的密度范围内，随着种植密度的增大，大豆虫食率、褐斑病率和紫斑病率均呈先降低后升高的变化趋势，其中密度为22.5万株/hm 2时，3种病虫害的发生率均最低，分别为0.4％、0.5％和0.1％；大豆产量呈先增加后降低的变化趋势，产量与种植密度的二次回归方程为 Y ＝-2731.4259＋358.9022 X-5.0335X 2。本研究条件下，密度为33.8万株/hm 2时大豆产量最高，为3801.667 kg/hm 2。  相似文献   

呼伦贝尔市2011年大豆生长季气候影响分析     

袁秀芝  郑洪玉 《内蒙古农业科技》2012,(3):101-102

2011年呼伦贝尔市大豆种植62.62万hm2,比2010年增加4.68万hm2。通过2011年气候资料的统计分析,得知在大豆生长季气温稍低,降水正常或局部偏多,大部分地区光照偏少,光、水、热匹配较好,尤其是水分条件对需水较多的大豆生长较为有利。  相似文献