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试验研究了全脂大豆对生长肥育阶段猪组织器官的影响。12头断奶去势长民仔猪(长白×民猪)随机分成3组,每组4头,单圈饲喂A、B和C三种饲粮,其中,A、B饲粮分别含15%的熟大豆和生大豆,C饲粮只含豆粕,不含全脂大豆。试验期为96d。肥育猪体重约100kg屠宰,测定组织器官相对重量和大肠、小肠的长度并在光学显微镜下观察大肠、小肠的组织学变化。结果表明饲喂生大豆饲粮猪的小肠长于饲喂另外两种饲粮猪的小肠,大肠却短于后两者。小肠和胰腺相对重在饲粮间存在差别,饲喂生大豆饲粮猪的小肠重于熟大豆和对照饲粮(P<0.05),胰腺重也是前者显著重于后两者(P<0.01),其它组织器官未发明显差异。组织切片观察发现,含生大豆的饲粮与熟大豆和豆粕饲粮组相比,对猪小肠绒毛的损害程度严重,而且大肠肠腺也深于采食其他两种饲粮猪。 相似文献
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两种猪种对含全脂大豆抗营养因子饲粮的消化率反应 总被引:3,自引:0,他引:3
试验用 2× 3析因试验设计 ,研究了含有 2 0 %热处理全脂大豆、2 0 %生全脂大豆和不含有任何大豆及大豆产品的等能量、等氮和等赖氨酸水平的 3种饲粮对东北民猪仔猪和长白仔猪的饲粮养分消化率的影响。试验结果表明 :东北民猪仔猪对干物质、粗蛋白质、粗脂肪 (P <0 .0 5 )、粗纤维、无氮浸出物 (P <0 .10 )的消化率显著高于长白仔猪 ;3种饲粮之间 ,热处理全脂大豆饲粮的干物质、粗蛋白质、粗脂肪、粗纤维、粗灰分、无氮浸出物的消化率高于生全脂大豆饲粮和对照饲粮。 相似文献
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全脂大豆中抗营养因子对两种猪种小肠和大肠的组织学参数的影响 总被引:2,自引:0,他引:2
全脂大豆富含能量和蛋白质,是一种理想的仔猪饲粮原料。但是,生全脂大豆含有许多抗营养因子(Liener等,1980),因此在饲喂前需要进行适当的加工处理。关于全脂大豆饲喂仔猪已有很多研究(Li等,1989;Schulze等,1993;徐良梅等,2001),但是研究全脂大豆的抗营养因子对两种猪种小肠和大肠组织学参数的影响尚未见报道。本试验旨在对小肠和大肠组织学观察,研究在消化能力不同的两猪品种间对全脂大豆抗营养因子反应是否存在差异,为全脂大豆在不同猪种饲粮中合理的加工利用提供科学依据。1材料与方法1.1试验动物及饲养管理试验选用健康的平均体重为22.… 相似文献
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采用生、熟全脂大豆和对照日粮分7组饲喂出壳1日龄艾维茵(Arian)肉仔鸡,研究生、熟全脂大豆对肉仔鸡粗蛋白代谢率的影响。结果表明:饲粮粗蛋白(CP)代谢率在试验前、后期饲喂生大豆饲粮的肉仔鸡显著低于饲喂熟大豆和后期饲喂对照饲粮的肉仔鸡(P<0.01)。 相似文献
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本试验旨在研究β-伴大豆球蛋白在仔猪胃肠组织中的分布规律。选用母本品种、胎次相同及体重相近的28日龄健康的杜*长*大断奶仔公猪20头,随机分为2组,每组2个重复,每个重复5头仔猪。对照组饲喂不含大豆抗原蛋白的基础日粮,试验组饲喂含4% β-伴大豆球蛋白的日粮。试验期5 d。结果表明,在仔猪消化道内,仔猪空肠后段中β-伴大豆球蛋白含量最高,而胃和小肠前半段的含量较低,且胃、十二指肠黏膜中β-伴大豆球蛋白含量显著高于胃肠组织(P<0.05)。 相似文献
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试验猪分两组,一组为长白×东北民猪一代杂种仔猪10头,一组为长白×(长白×东北民猪)二代杂种仔猪10头,进行直线育肥试验。初试体重分别为25.50±1.50与24.75±3.25,组间无显著差异。两组喂相同的基础饲粮,前期(体重20—35千克)和后期(35—100千克)两种配方分别为(%): 相似文献
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近年来,随着养猪生产的不断发展,全脂大豆在猪饲料,尤其是在仔猪应用量逐渐扩大。近年来,对全脂大豆喂猪已展开了大量的研究。在全脂大豆喂猪的营养价值、加工及饲喂方法等方面积累了大量的生产经验和取得了许多研究成果。本文总结全脂大豆在猪饲粮中的应用,为养猪生... 相似文献
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本文概述了猪的毛色类型、猪的毛色遗传模式,着重综述了猪毛色基因分子基础的研究进展,指出存在问题并就未来发展方向做了思考。 相似文献
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Reasons for performing study: Clinical experiences indicate that centesis of the lateral compartment of the femorotibial joint is often unsuccessful. Objective: To determine the accuracy of 2 published and 2 unpublished techniques of centesis of the lateral compartment of the femorotibial joint. Hypothesis: It was hypothesised that a drug can be administered into the lateral compartment of the femorotibial joint via a diverticulum of this joint that surrounds the medial aspect of the long digital extensor tendon and that this technique is more accurate than described techniques of centesis of this compartment. Methods: Twenty‐four stifles of 12 horses were divided equally into 4 groups and a radiocontrast medium injected into the lateral compartment of the femorotibial joint of each group using a hypodermic needle inserted: 1) caudal to the lateral patellar ligament and proximal to the tibial plateau, 2) caudal to the long digital extensor tendon and proximal to the tibial plateau, 3) between the long digital extensor tendon and bone of the extensor groove of the tibia or 4) directly through the long digital extensor tendon until it contacted bone. Twelve veterinary students who had no experience using any of these techniques performed the injections. Accuracy of each technique was determined by examining radiographs obtained after injecting the contrast medium. Results: The most successful technique for arthrocentesis was by inserting a needle through the long digital extensor tendon. This approach was successful in all attempted cases, whilst other techniques had lower rates of success. Conclusions: The lateral compartment of the femorotibial joint can be accessed accurately by inserting a needle through the long digital extensor tendon as it lies within the extensor groove. Other techniques may not be as accurate for clinicians inexperienced in arthrocentesis of the lateral compartment of the femorotibial joint. 相似文献
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魏静 《四川畜牧兽医学院学报》2009,(4):28-32
在现代法律秩序中,商会自治规范是制定法的基础和必要的补充,甚至在某些方面替代了制定法;商会自治规范主要包括商会组织规范、行为规范、惩罚规范以及争端解决规范等;其效力仅及于其内部成员;商会自治规范和制定法之间存在冲突,但也存在整合的基础。 相似文献
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Marioni-Henry K Vite CH Newton AL Van Winkle TJ 《Journal of veterinary internal medicine / American College of Veterinary Internal Medicine》2004,18(6):851-858
A retrospective review of records of 205 cats with histologically confirmed disease of the spinal cord was performed to identify the prevalence of disease in this nonrandomly selected population of cats. Clinical records were reviewed, and age, duration of neurologic illness, and clinical and histopathologic findings in cats with spinal cord disease were abstracted. Disease processes were classified into 7 categories and 23 groups. The most common diseases affecting the spinal cord of cats were feline infectious peritonitis (FIP), lymphosarcoma (LSA), and neoplasia of the vertebral column secondarily affecting the spinal cord. Information on age, onset and duration of clinical signs, and lesion localization at the postmortem examination in cats belonging to the 7 categories of disease were analyzed to create a practical list of differential diagnoses. Cats were also subcategorized into 3 groups based on their age at death. FIP was the most common disease of cats younger than 2 years of age. LSA and vertebral column neoplasia were the most common diseases affecting cats between 2 and 8 years of age. Vertebral column neoplasia was the most common disease affecting cats older than 8 years of age. Results of this histopathologic study showed that FIP and LSA were the most common disease processes affecting the spinal cord of cats. However, at least 21 other groups of diseases and their relative prevalence were identified. 相似文献
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以国际标准强毒R株人工感染非免疫产蛋鸡,定时扑杀,分别从鼻窦、眶下孔、气管、肺、气囊、卵巢和输卵管分离MG,并收集感染鸡所产蛋分离MG。结果表明,人工感染48小时后上、下呼吸道及肺已被全面感染,96小时气囊已被感染,120小时输卵管已能分离到MG,卵巢始终分离不到MG。人工感染鸡自144小时便能在其所产蛋中分离出MG。药物治疗能在72小时内消除感染,油乳剂苗则需24天后逐渐降低蛋内MG分离率,药物卵内注射、种蛋药浴、高温处理均能杀死卵内MG,但以研制的种蛋浸泡剂药浴效果为最好。 相似文献
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根据JJF1059-1999《测量不确定度评定与表示》建立了高效液相色谱法测定鸡肉中土霉素残留测量的不确定度评定方法,评定过程包括建立测量程序、分析不确定度来源、对不确定度分量进行量化。将不确定度归类为两大类。随机效应导致的不确定度可以通过一系列具有统计意义的重复观测值进行A类评定;系统效应导致的不确定度通过各测量器具、设备的说明书、校准证书提供的参数进行B类评定。本方法鸡肉中土霉素残留量的相对合成标准不确定度约为3.9%。 相似文献
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以5个金柑属品种、枳壳、软枝酸橘及广西土柠檬实生苗为材料,进行复水成活率、旱害指数、叶片相对含水量、超氧化物歧化酶(SOD)、过氧化物酶(POD)、过氧化氢酶(CAT)、丙二醛(MDA)、脯氨酸等生理指标及隶属函数的综合分析,为柑橘抗性砧木品种选育提供参考。结果表明:胁迫20d复水后的成活率融安滑皮金柑和长寿金柑最高,为100%,软枝酸橘最低,为88.9%;随着干旱胁迫加剧,各品种的旱害指数呈上升趋势,长寿金柑的旱害指数最低,为0.25,软枝酸橘的旱害指数最高,为0.61;从叶片相对含水量的结果来看,长寿金柑的变化幅度最小,软枝酸橘的变化幅度最大,在第18d时分别为61.19%和37.85%;3种保护酶之间相互协同作用减轻植株受害程度,其活性变化幅度与丙二醛和脯氨酸的含量变化相似。利用隶属函数法综合分析,得出各品种的抗旱性强弱依次为长寿金柑>枳壳>融安滑皮金柑>融安金柑>山金柑>广西土柠檬>金枣>软枝酸橘。 相似文献
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分别用CIDR(孕酮阴道栓)+PMSG(处理1)和CIDR+PMSG+LH(处理2)两种处理方法对山羊进行同期发情处理。结果发现,两种处理均以撤栓后第1d发情率最高。撒栓后0-24h和24h-48h的发情率,处理1和处理2(61.4%,13.6%和48%,20%)之间差异不显著;撤栓后48h-72h的发情率,处理1(4.59,6)显著低于处理2(24%)(P〈0.05);撤栓后0~72h发情率,两种处理(79.5%,92%)无显著差异(P〉0.05)。从手术时对卵巢的观察可以看出,有大卵泡或排卵的发情羊,处理1为91.2%,处理2为100%,二者无显著差异;排卵的发情羊,处理1为(58.8%)显著低于处理2为(91.2%)(P〈0.05)。 相似文献