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piglets
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  仔猪
    Effects of Glutamine-supplementation on Small Intestinal Nutrition and Immune Function in Early-weaned Piglets and Study on the Mechanism Involved
    谷氨酰胺对早期断奶仔猪肠道营养与免疫功能影响机理的研究
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    The Study on the Correlation of Swine MHC and Transferrin Polymorphism with Piglets E.coli K88 Diarrhea
    猪MHC和转铁蛋白多态性与仔猪大肠杆菌K88腹泻关系的研究
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    Studies on Effects of Epidermal Growth Factor, Glutamine and pGRF Gene Plasmid on the Development of Intestinal and Growth of Early Weaning Piglets
    EGF、Gln和pGRF基因质粒对早期断奶仔猪生长及肠道发育的影响
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    Construction of Cell Lines Expressing gD Gene of Pseudorabies Virus Ea Strain and Pathological Studies on the Piglets Artifically Infected by Pseudorabies Virus Ea Strain
    伪狂犬病毒Ea株gD基因转基因细胞系的构建及其人工感染仔猪的病理学
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    Dynamic Analysis of Hormones, HSP70 and HSP70 mRNA during Piglets Cold Stress
    仔猪冷应激反应中激素、HSP70及其mRNA的动态分析
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  “piglets”译为未确定词的双语例句
    PIGLETS DELIVERED FROM FROZEN(-20℃)EMBRYOS
    猪冷冻(-20℃)胚胎在我国移植成功
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    Study on the Mechanism of probiotics Preventing Piglets Calves and Chickens from Getting Diarrhea
    益生素预防畜禽腹泻机理的研究
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    Blood Valuse and Their Dynamic Changes of Xiang Piglets from 1 to 4 Months of Age
    1—4月龄香猪血液值及其动态变化
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    The New from of Preparation Used in Control and Treatment of Enteric Colibacillosis in Sucking Piglets
    哺乳仔猪肠型大肠杆菌病防治药物的新剂型
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    Pharmacokinetics of ciprofloxacin in the lung,trachea and brochi were investigated using 21 piglets infected with Mycoplasma hyopneumoniae after 5.0 mg/kg ciprofloxacin was injected intramusculary.
    将21头健康杜洛克×长白×大白杂交猪复制成霉形体性肺炎模型后,分别肌肉注射环丙沙星(5.0 mg/kg)进行组织及血浆药代动力学研究。
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  piglets
saginata asiatica) throughout the different stages, piglets were fed with eggs of T.
      
saginata asiatica infection model with normal piglets as control.
      
saginata asiatica-exposed piglets were indeed infected.
      
The specificity of phenotypic expression and inheritance of immunoglobulin allotypes IgG1a and IgG2b in piglets are discussed.
      
It was shown that a negative state by both these allotypes is repeatedly found among newborn piglets but is extremely rare in pigs older than one month.
      
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The previous experiments conducted in 1962 on the storage of boar semen showed, that the sperm well survived in the milk-citrate-glucose-yolk medium at 13-18℃. This study presents the fertility results of sows inseminated with semen after various intervals of storage in this medium. 103 sows, which had farrowed severeal times, were used in the field trials, and divided into four groups: fresh semen and semen stored for one, two and three days. Sows were inseminated two times with interval of 8-10 hrs. during...

The previous experiments conducted in 1962 on the storage of boar semen showed, that the sperm well survived in the milk-citrate-glucose-yolk medium at 13-18℃. This study presents the fertility results of sows inseminated with semen after various intervals of storage in this medium. 103 sows, which had farrowed severeal times, were used in the field trials, and divided into four groups: fresh semen and semen stored for one, two and three days. Sows were inseminated two times with interval of 8-10 hrs. during the first estrous period after lactation and 50-70 ml. of diluted semen containing about 4 billion sperm was used per insemination. The conception rates in four groups were 89.7, 84.0, 84.2 and 62.5, and the average number of living piglets per litter at birth were 9.85, 8.55, 8.44 and 7.40 respectively. Either on conception rate or on litter size there was no significant difference between fresh semen and semen stored for one or two days (P > 0.05), while a considerable decrease was noticed with semen stored for three days (P < 0.05). In the comparison trial with glucose-citrate-yolk, results showed that application of milk-citrate-glucose-yolk gave better, but not significant, conception rate and litter size. The inseminating apparatus, which was a modified type of that devised by Milovanov et al, was proved to be satisfactory in field trials covering approximately 300 inseminations. Based on the experimental results, the authors claim to recommend application of this medium in the practice of artificial insemination in pigs. It consists of equal parts of heated (at 92-95℃. by 10 min.) whole milk, 2.9% solution of sodium citrate dihydrate and 5% solution of glucose, in addition, 10-20% of egg-yolk at final concentration, 500-1000 I.U. of penicillin, 500-1000 μ. of streptomycin and 1-3mg. of sulfanilamide per ml. of medium were included.

1962年在实验室条件下进行的猪精液保存实验证明,精子在牛奶-柠檬酸钠-葡萄糖-卵黄保存液中,在13—18℃下的存活情况是非常好的。本文叙述了保存的猪精液在不同时同内母猪受胎产仔的效果,肯定了这种保存液的实用价值。授精试验应用103头经产母猪,根据所用精液的保存时间分为新鲜精液、保存一天、两天及三天的精液四组。断乳后第一次发情时授精二次,间隔8—10小时,一次授精量为50—70毫升,精子数40亿左右。各组的受胎率分别为89.7%,84.0%,84.2%及62.5%。平均每窝产活仔为9.85,8.55,8.44及7.40。在受胎率及产仔率上,保存一天及两天的精液与新鲜精液相比无显著差异(p>0.05),但保存三天的精液显著降低(P<0.05)。与葡萄糖-柠檬酸钠-卵黄保存液对比的授精试验结果,说明应用牛奶-柠檬酸钠-葡萄糖-卵黄液所得受胎率和产仔率稍好。文中所述保存猪精液的方法不需要冷藏设备,也不需要饱和以二氧化碳,故在实践中易于推广应用。

SUMMARY I. Previous works in 1961—1963. After 2 years' investigation on intestinal flora of both normal piglets and those with neonatal diarrhea,we found that piglets could be infected only by exposure to pathogenic E. coli strains before their normal intestinal flora were established. As soon as they were established, piglets became refractory to artificial inoculation with pathogenic strains. It was thought that administrating orally with a nonpathogenic strain of E. coli to piglets...

SUMMARY I. Previous works in 1961—1963. After 2 years' investigation on intestinal flora of both normal piglets and those with neonatal diarrhea,we found that piglets could be infected only by exposure to pathogenic E. coli strains before their normal intestinal flora were established. As soon as they were established, piglets became refractory to artificial inoculation with pathogenic strains. It was thought that administrating orally with a nonpathogenic strain of E. coli to piglets immediately after their birth and letting it established in intestine before exposure, protection from this disease would be possible. E. coli strain NY—10(033:K—NM) was isolated in 1963 by us in a herd which appeared to be scour free. It was proved to be a nonpathogenic and colicin produced strain. We designed to protect neonatal diarrhea from pathogenic E. coil infection with NY—10. During the period of 1963—1965 trials were made to detect both its ability of persistence in piglets'; intestine and its efficacy in protection against the pathogenic E. coli infection, the trial recorded in tablel, shows the percentages of NY—10 colonies isolated from rectal swabs of piglets in different days after oral administration of that strain immediately after their birth. The persistent period of NY—10 in the intestine of administered piglets were between 8 to 10 days. The results of preliminary efficacy test of protecting piglets from neonatal diarrea with oral administration of NY—10, are shown in table 2. The effect is very encouraging. Ⅱ.Results of field applications(1976—1977). NY—10 and a strain of lactobaeillus acidophilus were cultured separately, and then mixed together and kept in lyophilic form before use. Another nonpathogenic and colicin producing strain of E. colinamed strain B was prepared in the same way instead of NY—10 as mentioned above. Disease provailling herds were selected for experimental purpose. Either NY—10 or B—strain preparation was disolved and administered to piglets orally immediately after thei birth. Numbers of litters were untreated as controls. Results were taken 7 days after administretion (see table 3). In table 3, 3,394 piglets were administered either with NY—10 or strain—B, 287 were affected with diarrhea within 7 days (8.4% morbidity) and 90 were succumbed (2.6% mortality). Among 3,394 piglets, 2077 were administered with NY—10; 37 of them were affeted (1.8%) and 16 died (0.7%) , while the rest 1,317 administered with strain—B 250 were affected (19%) and 74 died (5.6%) . In 2,783 control animals, 1,658 were affected (59.5%) and 950 died (34%) . Marked differences were found between experimnt and control piglets both in morbidity and mortality rates. In comparison of the activity of NY—10 with that of strain—B, it indicated that NY—10 was suprior to strain—B, although both strains were isolated from normal intestinal flora and with similarities in its colicin producing and nonpathogenic properties. It is suggested that the machanism of the protection afforded is a consequence of the colonization of normal intestinal flora. Strains with higher speed of Multiplication in the intestine would become predominant in a shorter time after administration. Consequently afforded a superior protecting power.

1963年,在一个多年未发生过拉稀的猪场的仔猪中,分离出一株能产生肠菌素,并对大多数致病性大肠杆菌均能抑制的埃希氏大肠杆菌,名为NY—10(O_(33):K—:H—)。1977年,又从一个SPF猪场分离到一株无病原性的产肠菌素的埃希氏大肠杆菌,名为B株。分别与一株从乳猪肠内分离的嗜酸性乳酸杆菌的培养物,制成预防仔猪黄痢的生物制剂,在仔猪出生后立即口服。经在四十余个流行黄痢的猪场试用,結果表明:NY—10和B株都能保护仔猪不受致病性大肠杆菌的侵害,从而为利用口饲一种非病原性大肠杆菌来预防仔猪黄痢开辟了一条生物防治的新途径。

SUMMARY A disease Of new-born piglets characterized by hemorrhagie; diarrhoea and rapid death occured in the rural of Beijing in 1970. Based on the clinical signs and autopsy findings, bacteriologic examinations have been carried out in 53 easses, out of C1. perfringcns type C , and its intestinal toxin content were from 43 casses. Therefore, a diagnosis of Enterotoxemia in piglets hag been established for the first time in China ever ,since.

1970年在北京市郊区发生的新生仔猪拉红稀的急性传染病,在观察了临床症状和病理解剖变化的基础上,经过细菌学检查,53个病例中,有43个分离出C型魏氏梭菌,这些病例的肠内容物中也存在C型魏氏梭菌产生的毒素,结合临床症状和特异的病理解剖变化,确诊为C型魏氏梭菌引起的肠毒血症。群众根据仔猪拉红稀的特征称之为“红痢”,我们沿用了这一为群众惯用的病名,定命为“仔猪红痢”,这是在我国第一次确诊有本病存在。确诊了病原给本病的预防打下了可靠的基础。本病不仅在北京市地区,在其他地方亦有发生。我国发生的仔猪红痢的发病率和死亡率,与H(?)gh,P.报道一的致;其发病的时间和Field,H.I.和Gison,E.A.叙述的相同,我们观察到的仔猪红痢的病理解剖变化,与Hutyra,Marek和Manninger,M(?)esy和Howard,W.Dunne和Alien D.Leman 描绘的一样。据Brooks,M.E.Sterne,M.Warrack,G、H、和Warrack,G.H.以及Sterne,M.Warrack,G.H、等人报道,仔猪红痢病原菌,按Wilsdon分类,属于C型魏氏梭菌,但在次要毒素δ和μ,尤其是δ毒素上与...

1970年在北京市郊区发生的新生仔猪拉红稀的急性传染病,在观察了临床症状和病理解剖变化的基础上,经过细菌学检查,53个病例中,有43个分离出C型魏氏梭菌,这些病例的肠内容物中也存在C型魏氏梭菌产生的毒素,结合临床症状和特异的病理解剖变化,确诊为C型魏氏梭菌引起的肠毒血症。群众根据仔猪拉红稀的特征称之为“红痢”,我们沿用了这一为群众惯用的病名,定命为“仔猪红痢”,这是在我国第一次确诊有本病存在。确诊了病原给本病的预防打下了可靠的基础。本病不仅在北京市地区,在其他地方亦有发生。我国发生的仔猪红痢的发病率和死亡率,与H(?)gh,P.报道一的致;其发病的时间和Field,H.I.和Gison,E.A.叙述的相同,我们观察到的仔猪红痢的病理解剖变化,与Hutyra,Marek和Manninger,M(?)esy和Howard,W.Dunne和Alien D.Leman 描绘的一样。据Brooks,M.E.Sterne,M.Warrack,G、H、和Warrack,G.H.以及Sterne,M.Warrack,G.H、等人报道,仔猪红痢病原菌,按Wilsdon分类,属于C型魏氏梭菌,但在次要毒素δ和μ,尤其是δ毒素上与典型的C型魏氏梭菌,即羊猝狙菌不同,后者产生δ毒素,不产生μ毒素,而前者不产生δ毒素,但少数菌株产生μ毒素,因而将仔猪红痢病原菌列为C型魏氏梭菌的一个亚型。我们也在对这两种病原菌进行产生的各种毒素的测定试验,结果另行报告。

 
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