大豆上烟环斑病毒的塑珠酶联免疫吸附测定     

韦石泉  希尔·约翰 《植物病理学报》1985,15(3):153-157

 酶联免疫吸附测定法,灵敏度高,使用抗血清仅微量,是近年来用于诊断、鉴定植物病毒的先进方法之一。这一技术需要纯度高的抗血清,采用蛋白质A-琼脂糖CL-4B柱层析纯化后的抗烟草环斑病毒抗血清(抗TRSV-IgG),纯度高、灵敏,很适用于塑珠酶联免疫吸附测定法(Bead-ELISA)的抗体和酶标抗体的材料。  相似文献   

THE RETRACTOR MUSCLE OF THE POUCH IN THE GEOMYIDAE     

Hill JE 《Science (New York, N.Y.)》1935,81(2093):160

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Effects of ractopamine on genetically obese and lean pigs   总被引：2，自引：0，他引：2  

J T Yen  H J Mersmann  D A Hill  W G Pond 《Journal of animal science》1990,68(11):3705-3712

Twenty-eight genetically obese and 24 lean barrows (65.0 and 68.7 kg average BW, respectively) were allotted within genotype to a 16% CP corn-soybean meal basal diet or this basal diet + 20 ppm ractopamine (a phenethanolamine beta-adrenergic agonist) and allowed ad libitum access to feed for 48 d. Compared to lean pigs, obese pigs had lower ADG, gain to feed ratio, longissimus muscle area, predicted amount of muscle, and weights of trimmed loin and ham, ham lean, heart, spleen, kidney and gastrointestinal tract (P less than .05). Obese pigs also had shorter carcass but higher dressing percentage, backfat thickness, fat depth, fat area, untrimmed loin weight and fasting plasma urea N concentration (P less than .05). Dietary supplementation with 20 ppm ractopamine reduced daily feed intake and improved gain to feed ratio in both lean and obese pigs (P less than .05). Pigs fed ractopamine had shorter carcasses, less fat depth and fat area, smaller weights of stomach and colon plus rectum, but higher dressing percentages, longissimus muscle areas, weights of trimmed Boston butts, picnics and loins, ham lean and predicted amounts of muscle than pigs not fed ractopamine (P less than .05). Supplemental ractopamine had no effect on fasting plasma concentrations of urea N, nonesterified fatty acids, triglyceride or glucose (P greater than .05). No genotype x ractopamine interactions for the criteria described above were detected (P greater than .05). These results suggest that ractopamine will improve the efficiency of feed utilization and carcass leanness in swine with different propensities for body fat deposition.  相似文献   

Orbital injury causing blindness in a Thoroughbred horse     

JR BLOGG  AG MARC 《Australian veterinary journal》1990,67(5):193-195

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The United States energy dilemma: How can we solve it?     

Hill  George R. 《Water, air, and soil pollution》1977,7(2):141-146

Water, Air, & Soil Pollution - The basis for the present energy dilemma is described. The current solution to the inadequate petroleum and natural gas supplies and possible long-term solutions...  相似文献   

Pesticide residues. IUPAC Commission on Terminal Residues     

K R Hill 《Journal of the Association of Official Analytical Chemists》1971,54(6):1316-1331

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Pesticide residues. Chlorinated hydrocarbon pesticide residues in foodstuffs: comparison of methods     

N A Smart  A R Hill  P A Roughan 《Journal of the Association of Official Analytical Chemists》1974,57(1):153-164

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Multiple embryo-transplant offspring produced from quartering a bovine embryo at the morula stage     

S A Voelkel  S D Viker  C A Johnson  K G Hill  P E Humes  R A Godke 《The Veterinary record》1985,117(20):528-530

A non-surgical embryo collection was completed on a day 7 superovulated Chianina donor cow. Because all but two of the ova from the collection were unfertilised and a surplus of potential recipients was available, one embryo (an excellent quality late morula) was dissected into four equal portioned 'quarter' embryos using a simplified micromanipulation procedure. Each quarter embryo was then placed in a 0.25 ml French straw and non-surgically transplanted to four different crossbred beef recipient females. The remaining embryo was similarly transplanted to a herd mate recipient as an intact embryo. One recipient returned to oestrus, one recipient had an extended post transfer cycle and the two remaining recipients produced a live quarter embryo transplant calf each within 24 hours of the other. The intact embryo placed in a herd mate recipient did not produce a transplant calf. To the authors' knowledge, these transplant offspring are the first live births reported from a non-surgically collected later-stage bovine morula (day 7), which had been dissected into quarters and then individually transplanted non-surgically to recipient females. The procedure was relatively simple to perform and was completed in less than one hour.  相似文献   

Preliminary seed potato certification notes     

C. Tice  E. P. Sandsten  E. R. Bennett  F. M. Harrington  H. O. Werner  J. A. Hill 《American Journal of Potato Research》1923,1(1):7-8

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Determination of N-(4-chlorophenyl)-N'-(2,6-difluorobenzoyl)-urea in milk by high-speed liquid chromatography     

C Corley  R W Miller  K R Hill 《Journal of the Association of Official Analytical Chemists》1974,57(6):1269-1271

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