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兔出血症,波氏杆菌病,巴氏杆菌病三联苗的研究 总被引：1，自引：0，他引：1
兔出血症（ＲＨＤ）、波氏杆菌（Ｂｂ）病和巴氏杆菌（Ｐｍ）病是家兔三种主要传染病。采用新的液体培养工艺。使Ｂｂ和Ｐｍ含菌量稳定在１８６￣２３０亿／ｍｌ、２００￣２６０亿／ｍｌ之间。用ＲＨＤ、Ｂｂ和Ｐｍ联合制成的三苗免疫剂量为１ｍｌ／只，经免疫试验测定，对ＲＨＤ等５天的保护率达１００％（２８／２８），持续保护６．５个月以上；对Ｂｂ和Ｐｍ的平均保护率达８８．９％（２４／２７）和８８．３％（２３／２６）， 相似文献
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兔出血症-魏氏梭菌病-巴氏杆菌病三联苗的研究与应用 总被引：2，自引：0，他引：2
通过对兔出血症（ＲＨＤ）、魏氏梭菌病（ＣＷＤ）和巴氏杆菌病（ＰＭＤ）三联氢氧化铝甲醛灭活疫苗（兔三联苗）的研究，制备出了安全有效的兔三联苗。用２ｍＬ／只免疫实验兔，４天后对ＲＨＤ和ＣＷＤ、１４天后对ＰＭＤ均产生良好的免疫效果；２１天后测定，疫苗的平均保护率为ＲＨＤ９７％、ＣＷＤ８６．２％、ＰＭＤ６５．２％；６个月后测定，平均保护率为ＲＨＤ１００％、ＣＷＤ８０％、ＰＭＤ５８．８％。该疫苗的保存期为８～１０℃８个月。在此病流行地区使用兔三联苗免疫家兔１５００万头份，有效地控制了该三种传染病。 相似文献
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通过对兔出血症，魏氏梭菌病和巴氏杆菌病三联氢氧化铝甲醛灭活疫苗的研究，制备出安全有效的兔三联苗。用２ｍＬ／只免疫实验兔，４天后对ＲＨＤ和ＣＷＤ，１４天后对ＰＭＤ均产生良好的免疫效果；２１天后测定，疫苗的平均保护率ＲＨＤ９７％，ＣＷＤ８６．２％，ＰＭＤ６５．２％；６个月后测定，平均保护率为ＲＨＤ１００％，ＣＷＤ８０％，ＰＭＤ５８．８％。该疫苗的保存期为８－１０℃８个月。在此病流行地区使用兔且联苗免疫 相似文献
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以禽巴氏杆菌病Ｂ２６－Ｔ１２００弱毒疫苗免疫后８小时即能产生免疫力（１／５鸡得到保护）；２－３天有３／５鸡获得保护；４－５天后能产生坚强免疫力（４／５－５／５保护），免疫后２，３，４和５个月的总保护率为８３．３％（８０／９６）；免疫后５个月，６批苗的平均保护率为７５％（１８／２４）。 相似文献
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对研制的兔出血症、巴氏杆菌二联灭活苗分别与二种单苗进行了免疫力、免疫产生期、免疫持续保护效果、保存期的比较。结果表明：二联灭活苗对兔出血症RHD、巴氏杆菌病（Pm）的保护率分别100％（15／15）,86．7％（13／15）。而二种单苗的免疫效果分别是100％（12／12）和88．8％（8／9）,经统计学检验差异不显著（P〉0．05）。二联苗和单苗对RHD均100％保护,对于Pm二联苗和单苗第7天都能产生保护力,第10天可产生较坚强的免疫效果。疫苗免疫持续6个月后免疫对RHD、Pm的保护率分别为100％（8／8）、83．3％（10／12）,单苗免疫后对RHD、Pm的保护率分别为100％（6／6）,85．7％（12／14）,免疫效果无显著性差异（P〉0．05）。二联苗和二种单苗在4～8℃和室温条件下保存6个月,对兔病毒性出血症的保护率达100％,对巴氏杆菌病也具有良好的免疫效果。二种组分制苗无干扰现象发生。 相似文献
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鸡新城疫、传染性支气管炎、传染性法氏囊病三联油乳剂灭活疫苗研制及应用 总被引：1，自引：0，他引：1
用新城疫病毒（ Ｎ Ｄ Ｖ） Ｌａ Ｓｏｔａ 株、鸡传染性支气管炎病毒 （ Ｉ Ｂ Ｖ） Ｍ４ １ 株接种鸡胚, 收获含毒鸡胚尿液。用传染性法氏囊病病毒 （ Ｉ Ｂ Ｄ Ｖ） 地方强毒 Ｈ Ｂ９ ０ ９ 株接种３０ ～４０ 日龄肉用鸡, 发病后取囊组织 （ 或收集 Ｉ Ｂ Ｄ 典型发病鸡囊组织） 制备成含毒组织悬液。将三种病毒液按一定比例混合, 制备成三联油乳剂灭活苗。三联苗免疫１８ 日～２８ 日龄雏鸡, 免疫后２１ 天攻毒测保护力, 三种传染病保护率均在９０ ％ ～１００ ％ , Ｎ Ｄ Ｈ Ｉ抗体≥１∶３２ , Ｉ Ｂ Ｄ Ｖ Ａ Ｇ Ｐ阳性率１００ ％ , Ｉ Ｂ Ｖ Ｎ 抗体≥１∶８ , 疫苗免疫期可达４ 个月以上。疫苗在４ ℃～８ ℃保存期为１８ 个月, １０ ℃～２０ ℃保存为６ 个月, 该疫苗在全省不同地区、不同品种鸡应用１５ 万羽份, 取得理想免疫效果。 相似文献
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鸡传染性法氏囊病—新城疫二联峰胶灭活苗的研制 总被引：1，自引：0，他引：1
用自行分离鉴定的鸡法氏囊病病毒（ＤＦＣ３Ｖ株）与Ｉ型标准毒株（Ｄ７８株）和新城疫病毒（ＬａＳｏｔａ株）联合研制的蜂胶灭活苗,经实验室和田间试验证明,雏鸡肌肉或皮下注射０．５ｍｌ／只,注后７天产生免疫抗体,攻毒后保护率为６０％,注后１４天功玫毒保护率为１００％,免疫后１８０天,攻毒保护率为８０％,本苗与白油佐剂苗免疫效力对比试验结果表明,蜂胶佐剂苗免疫效和产生白油佐剂苗为快而持久,该苗保存于４～８℃ 相似文献
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本文报告禽霍乱蜂胶灭活苗与弱毒冻干苗（Ｇ１９０Ｅ４０）分别对鸡免疫，在免疫后２０ｄ、９０ｄ、１８０ｄ作３次攻毒，结果：禽霍乱蜂胶灭活苗的保护率依次为１００％（５／５）、８０％（４／５）、６０％（３／５）；禽霍乱弱毒冻干苗的保护率依次为６０％（３／５）、４０％（２／５）、０％（０／５）。 相似文献
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鸡减蛋综合征蜂胶佐剂灭活苗免疫期的试验研究 总被引：3，自引：1，他引：2
用三批减蛋综合征（ＥＤＳ）蜂胶佐剂灭活苗（９４０９１２、９４１０２４、９４１１２１）分别免疫成年产蛋母鸡，定期采血，连续检测ＨＩ抗体动态变化，这三批苗６个月的平均ＨＩ抗体滴度分别为７．７、８和７．７（Ｌｏｇ２）；用鸭胚做ＥＤＳＶ血清中和试验，其保护率均为１００％（５／５，５／５，５／５）；用ＥＤＳ２０６油苗和ＥＤＳ白油苗同时分别免疫蛋鸡，做平行对比ＨＩ抗体检测，其６个月的平均ＨＩ抗体效价分别为７． 相似文献
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用６批ＩＢＤ蜂胶灭活苗按０．５ｍｌ的剂量分别在７日龄１８－２０日龄免疫健康雏鸡，免疫后２８ｄ抗体阳转率为９８．３％，于免疫后４０ｄ对３批疫苗免疫的雏鸡用强毒攻击，保护率为１００％。以１．０ｍｌ的剂量于胸部皮下接种１８０－２００日龄产蛋鸡，免疫后２１ｄ卵黄抗体琼扩效价全部达１：６４以上。 相似文献
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Breed differences for weight (CW), height (CH), and condition score (CS) were estimated from records (n = 12,188) of 2- to 6-yr-old cows (n = 744) from Cycle IV of the U.S. Meat Animal Research Center's Germplasm Evaluation (GPE) Program. Cows were produced from mating Angus and Hereford dams to Angus, Hereford, Charolais, Shorthorn, Galloway, Longhorn, Nellore, Piedmontese, and Salers sires. Samples of Angus and Hereford sires were 1) reference sires born from 1962 through 1970 and 2) 1980s sires born in 1980 through 1987. The mixed model included cow age, season of measurement and their interactions, year of birth, pregnancy-lactation code (PL), and breedgroup as fixed effects for CW and CS. Analyses of weight adjusted for condition score included CS as a linear covariate. The model for CH excluded PL. Random effects were additive genetic and permanent environmental effects associated with the cow. Differences among breed groups were significant (P < 0.05) for all traits and were maintained through maturity with few interchanges in ranking. The order of F1 cows for weight was as follows: Charolais (506 to 635 kg for different ages), Shorthorn and Salers, reciprocal Hereford-Angus (HA) with 1980s sires, Nellore, HA with reference sires, Galloway, Piedmontese, and Longhorn (412 to 525 kg for different ages). Order for height was as follows: Nellore (136 to 140 cm), Charolais, Shorthorn, Salers, HA with 1980s sires, Piedmontese, Longhorn, Galloway and HA with reference sires (126 to 128 cm). Hereford and Angus cows with reference sires were generally lighter than those with 1980s sires. In general, breed differences for height followed those for weight except that F1 Nellore cows were tallest, which may in part be due to Bos taurus-Bos indicus heterosis for size. 相似文献
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In experiment 1, 6 pregnant mares received a concentrate that contained a trace mineral premix that provided 14.3 mg Cu, 40 mg Zn, 28 mg Fe, 28 mg Mn, 0.08 mg Co, 0.16 mg I, and 0.16 mg Se/kg concentrate (group A). Seven mares received the same concentrate plus 502 mg Zn and 127 mg Cu once daily (group B). No differences (P > .05) in foal growth data, or Cu, Zn, and Fe concentrations of mare milk, mare serum, or foal serum were observed. In experiment 2, 6 pregnant mares received the same concentrate as group A (group C), and 8 mares received the same concentrate fortified with 4× the trace mineral premix (group D). Group C mares had higher serum Zn concentration at 1 day (P < 0.01) and 56 days (P < 0.04). Group C mares had higher milk Fe concentration at 28 days (P < .01), and group D mares had higher milk Cu concentration at 56 days (P < .01). Group C foals had higher serum Cu concentration at 14 days (P < .03). The results from this study provide no evidence to indicate that supplementing late gestating and lactating mares with higher dietary trace mineral levels than those recommended currently by NRC has any influence on foal growth and development, or on the Cu, Zn, and Fe concentrations of the mare milk, mare serum, or foal serum. 相似文献
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Nadine Pa?lack Barbara Mainzer Monika Lahrssen-Wiederholt Helmut Schafft Richard Palavinskas Angele Breithaupt Jürgen Zentek 《Journal of veterinary science (Suw?n-si, Korea)》2015,16(1):57-66
This study was conducted to measure the concentrations of strontium (Sr), barium (Ba), cadmium (Cd), copper (Cu), zinc (Zn), manganese (Mn), chromium (Cr), antimony (Sb), selenium (Se), and lead (Pb) in canine liver, renal cortex, and renal medulla, and the association of these concentrations with age, gender, and occurrence of chronic kidney disease (CKD). Tissues from 50 dogs were analyzed using inductively coupled plasma mass spectrometry. Cu, Zn, and Mn levels were highest in the liver followed by the renal cortex and renal medulla. The highest Sr, Cd, and Se concentrations were measured in the renal cortex while lower levels were found in the renal medulla and liver. Female dogs had higher tissue concentrations of Sr (liver and renal medulla), Cd (liver), Zn (liver and renal cortex), Cr (liver, renal cortex, and renal medulla), and Pb (liver) than male animals. Except for Mn and Sb, age-dependent variations were observed for all element concentrations in the canine tissues. Hepatic Cd and Cr concentrations were higher in dogs with CKD. In conclusion, the present results provide new knowledge about the storage of specific elements in canine liver and kidneys, and can be considered important reference data for diagnostic methods and further investigations. 相似文献
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K Reifenberg M Stahl U L?sch 《Zentralblatt für Veterin?rmedizin. Reihe B. Journal of veterinary medicine. Series B》1989,36(3):191-198
A simple two step procedure for the isolation of caprine, ovine, bovine, equine, canine, porcine and human peripheral blood granulocytes is described. After enrichment of granulocytes by centrifugation, contaminating erythrocytes are lysed hypotonically. Recovery, purity, and viability of the granulocyte suspensions are determined. FACScan analysis of the cell suspensions measuring cellular size by forward and sideward light scatter is compared with the corresponding analysis of whole blood leukocytes. Constituencies of the isolated cell suspensions and loss of granulocyte subpopulations through isolation procedure is discussed with regard to granulocyte function assays. 相似文献
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《饲料工业》2019,(18):54-58
应用电感耦合等离子-质谱技术(ICP-MS),建立饲料中钠、镁、铬、锰、铁、铜、锌、砷、硒、镉和铅等元素的测定方法。对饲料样品的前处理方法、仪器工作参数和11种元素标准曲线进行优化;并以加标回收、分析方法比对和重复测试说明方法的准确性和精密性。方法在0～1 000 ng/ml范围内线性良好,仪器检出限为0.557 7～5.072 ng/ml,具有良好的精密度,其回收率在88.1%～104.4%之间,相对标准偏差小于5.0%。同时与原子吸收和原子荧光方法进行比对,测定结果相近。所建立的方法简单、快速,可替代原子吸收和原子荧光方法测定饲料中的11种金属元素,为饲料的质量控制提供理想的元素分析方法。 相似文献
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《The Journal of small animal practice》1975,16(1-12):143-154
Circular excised skin wounds in the thoracic and metatarsal regions of the dog were studied. A similar sequence of events took place in the two regions although differences did occur due to the different reactions of the tissues which surrounded the wounds. None of the wound cavities became filled with exudate during the early stages of healing. In the thoracic wounds the cavities were largely filled by the swelling and inward movement of adipose tissue. Epithelium first grew on the wound surface in the sector of the wound that was situated in the direction of hair flow. The average time to complete epithelization was similar in both sets of wounds. A zone of alopecia developed around the wounds. 相似文献
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