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中药添加剂对猪增重的试验观察 总被引:2,自引:0,他引:2
笔者运用中医理论,结合猪的生理特点,自拟中药添加剂配方,进行了两批80头120天的增重效果试验,所获结果尚诚满意,报告如下。1 材料与方法1.1 试验时间 1996年7月~9月中旬为第一批,1997年7月~9月中旬为第2批。1.2 试验配方 自拟中草药饲料添加剂配方3个。方1:何首乌、焦三仙、松针粉等;方2:炒苍术、穿心莲、山楂、芒硝等;方3:炒苍术、陈皮、牡蛎、女贞子等。药物从当地药材公司购取,分别清理杂质,精细加工为散剂,分别以1%比例加入基础日粮中。1.3 试验分组 选择17kg左右大汉梅… 相似文献
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3种中药饲料添加剂对肉鸡增重试验 总被引:5,自引:1,他引:4
3种中药饲料添加剂对肉鸡增重试验张凤台,张克家,陆钢(北京农业大学动物医学院,100094)本试验选用3种中药组方作为肉鸡增重饲料添加剂进行对比试验,结果表明,这3种中药饲料添加剂对肉鸡均有不同程度的增重作用。材料和方法一、材料1.添加剂:增重灵(黄... 相似文献
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<正>选用60头体重10 kg左右的仔猪,随机分为3组,对照组为基础日粮组,试验组分别在基础日粮中添加1%中药复方A和1%中药复方B,进行为期112天的饲养试验。结果与对照组相比,2个试验组仔猪增重、平均日增重和饲料转化率均有明显提高。试验表明,该复方中草药可以提高仔猪生长性能,具有一定的应用价值。现报道如下。1材料与方法1.1药材本试验所用中草药购自武威市药材公司,将药物中的 相似文献
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材料和方法一、组方(一) 旧方:基于对中药功效的理解,由专家拟定一个以补气生阳为主的中药复方。(二) 新方:由电脑辅助组方。将所搜集的用于畜禽增重的中药方剂40个左右,分别输入计算机,按下述原则编制程序 相似文献
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半乳甘露寡糖和金霉素在育肥猪日粮中的效果对比试验 总被引:4,自引:1,他引:3
1材料与方法 1.1供试材料 试验组用半乳甘露寡糖产品由北京中科艾迪动物营养保健技术有限公司提供(以预混料形式),其中半乳甘露寡糖(GMOS)的含量在全价料中相当于0.1%添加,它是由中国科学院微生物研究所利用新的β-甘露聚糖酶和木聚糖酶特异降解田菁胶的甘露聚糖主糖链和甘蔗渣的木聚糖链在不同温度、pH、反应时间、底物量等条件下经过转化试验而获得:对照组用金霉素产品由郑州七配合公司提供(也以预混料形式),在全价料中相当于50mg/kg添加。 相似文献
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In situ hybridization for the detection of transmissible gastroenteritis virus in pigs and comparison with other methods. 总被引:8,自引:0,他引:8
Archived formalin-fixed, paraffin-embedded tissues from 25 pigs naturally infected with transmissible gastroenteritis virus (TGEV) were examined by in situ hybridization for TGEV nucleic acid using a nonradioactive digoxigenin-labeled cDNA probe that targeted the nucleocapsid sequence of TGEV strains. The results of in situ hybridization for the detection of TGEV were compared with virus isolation (VI), a fluorescent antibody test (FAT), and transmission electron microscopy (TEM). VI, FAT, and TEM were tested over a course of time before the in situ hybridization was performed. Positive hybridization signals were detected in duodenal, jejunal, and ileal enterocytes from 21 pigs. Hybridization signals were confined to the cytoplasm. Intestinal specimens from 25 piglets were evaluated by 4 tests. Twenty-one of 25 were positive by in situ hybridization. Of these 21 samples, 5 (24%) were positive for TGEV by all 4 tests, 15 (71%) were positive by FAT, 14 (67%) were positive by VI, and 6 (29%) were positive by TEM. In situ hybridization for the detection of TGEV in formalin-fixed, paraffin-embedded tissues provides a rapid means of confirmation of a histopathological diagnosis of TGEV without virus isolation, or when only formalin-fixed intestinal specimens were available. 相似文献
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Plasma concentrations of porcine growth hormone (PGH) were similar in healthy pigs and those with atrophic rhinitis (AR), therefore, observed reduced growth rates and feed efficiency in naturally infected pigs with AR were not attributed to low concentrations of plasma PGH. Also, pituitary glands in both groups of pigs were responsive to growth hormone-releasing hormone (GHRH) challenge by increasing PGH secretion. Administration of clonidine hydrochloride to pigs naturally infected with AR failed to elicit any significant change (5.3 +/- 1.4 ng/ml) in the plasma concentration of PGH within a 45-minute bleeding interval. The pretreatment concentrations of PGH were similar in specific-pathogen-free toxin-treated and specific-pathogen-free control groups, but they increased significantly in toxin-treated pigs (20.7 +/- 8.2 ng/ml) within 15 minutes after GHRH injection. Porcine growth hormone release in toxin-treated pigs was variable; however, all pigs did not respond to GHRH administration: 3 responded with an increase in PGH release (35.6 +/- 10.6 ng/ml), 2 did not respond (6.7 +/- 0.5 ng/ml), and 1 had a decrease in PGH release (3.9 ng/ml). Therefore, the observed reduced growth rates reported in the literature may be attributed to factors at the target level of PGH action, such as insufficient or down-regulation of PGH receptors, changes or impaired ability in the PGH receptor-binding characteristics, and inability of PGH receptor complex to transduce signal. Toxins are known to modulate signal transduction pathways. It has been speculated that serotype-D Pasteurella multocida toxin may influence growth by its effect on signal transduction from PGH receptor complex on the cell membrane to the interior of the cell.(ABSTRACT TRUNCATED AT 250 WORDS) 相似文献
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选择 2 5kg左右的杜长大断奶仔猪 4 8头 ,随机平均分为 4组 ,采用对比试验 ,以天门产早稻 (糙米 )、小麦作为能量饲料代替日粮中玉米用量的 5 0 %、10 0 %,各组添加 4 %预混料 ,试验期 10 2d。试验结果 :4个组总增重分别为 837 5、85 1 0、832 0和 812 5kg ,平均日增重分别为6 84 2 3、6 94 88、6 79 72和 6 6 3 86 g ;料肉比分别为 3 2 7∶1、3 2 4∶1、3 2 4∶1和 3 38∶1,每增重 1kg体重饲料费用分别为 4 5 8、4 85、4 73、5 31元。经统计分析 ,增重效果差异不显著 (P >0 0 5 ) ,证明利用糙米、小麦作为能量饲料代替玉米配合日粮饲喂瘦肉猪是完全可行的。 相似文献
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《动物医学进展》2015,(8)
为研究制何首乌水提液对小鼠成骨细胞MC3T3-E1的影响,将不同浓度的制何首乌水提液作用于MC3T3-E1细胞,采用噻唑蓝(MTT)法、碱性磷酸酶(ALP)活力检测试剂盒和实时荧光定量PCR法对细胞增殖、ALP蛋白分泌及骨保护素(OPG)和核因子κB受体活化因子配体(RANKL)mRNA表达水平进行检测。结果显示,药物作用2d和3d后,各浓度制何首乌水提液均可促进MC3T3-E1细胞增殖;药物作用6d后,各浓度制何首乌水提液均可促进MC3T3-E1细胞分泌ALP;药物作用1d后,较高浓度制何首乌水提液可上调MC3T3-E1细胞OPG/RANKL mRNA表达比。表明制何首乌水提液具有促进成骨细胞增殖、分化和上调成骨细胞OPG/RANKL mRNA表达比的作用。 相似文献