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A study on efficacy of chitosan on bovine mastitis
1998
Moon, J.S. | Joo, Y.S. | Ku, B.G. | Kim, J.Y. (National Veterinary Research Institute, RDA, Anyang (Korea Republic)) | Kim, D.W. (Samyang Pharma Chemical Company, LTD., Seoul (Korea Republic)) | Park, Y.H. (Seoul National University, Suwon (Korea Republic). College of Veterinary Medicine) | Hahn, T.W. (University of Georgia, Georgia (USA))
Efficacy and mechanism of cultivation measures on Hirschmanniella oryzae
1998
Gao Xuebiao | Zhou Huijuan | Feng Zhixin (South China Agricultural univ., Guangzhou (China))
Efficacy of Chlortetracycline-Tiamulin combination on Mycoplasma gallisepticum infection
1998
Fang Binghu | Zeng Zhenling | Hu Gongzheng (South China Agricultural Univ., Guangzhou (China). Laboratory of Veterinary Pharmacology)
Application parameter effects on efficacy of a semiochemical-based insecticide
1998
Hoffmann, W.C. | Lingren, P.S. | Coppedge, J.R. | Kirk, I.W.
Trials were conducted in corn fields having populations of corn rootworm beetles to determine the influence of application equipment and parameters on the efficacy of a semiochemical-based insecticide. The spray application equipment and operational parameters were varied to produce three droplet sizes, three applied product rates (kg of product/ha), and three spray rates (spray volume in L/ha) to evaluate the effects on product efficacy. Two formulations of the product, which vary only in manufacturing process, were also evaluated. Beetle populations were monitored using emergence cages, sticky traps, cone traps, and whole plant counts. The efficacy of the product was measured in terms of percent reduction in beetle numbers from pretreatment levels. Large droplets [> 800 micrometer volume median diameter (D(V0.5)) did not reduce adult populations as effectively as small (300 micrometer D(V0.5)) and medium (600 micromolar D(V0.5)) size droplets. Spray rate (4.7-14.1 L/ha) did not affect the efficacy of the product. Product rates ranging from 0.28 to 0.56 kg/ha resulted in similar levels of control.
显示更多 [+] 显示较少 [-]Effect of hand defoliation on herbicide efficacy in honey mesquite
1998
Bovey, R.W. | Pace, P.F. | Cralle, H.T.
Greenhouse and field experiments were conducted to evaluate the effect of hand defoliation of honey mesquite (Prosopis glandulosa Torr) before herbicide application on herbicide efficacy. In the greenhouse, the monoethanolamine salt of clopyralid, the butoxyethyl ester of triclopyr, and 1:1 mixtures of clopyralid plus triclopyr were applied as foliar sprays at 140 g ha-1 each on 2-year-old single-stemmed plants averaging 50 cm tall. In the field, the same herbicides were applied as broadcast sprays at rates of 280 g ha-1 on multistemmed trees 1 to 2 m tall. Plants were defoliated prior to herbicide application at 0, 25, and 50% of original foliage. Defoliation at 25 or 50% did not reduce herbicide efficacy compared to nondefoliated plants in the greenhouse or field. The clopyralid:triclopyr mixture was sometimes synergistic in controlling honey mesquite in the greenhouse and field.
显示更多 [+] 显示较少 [-]Studies on efficacy of alum precipitated Haemorrhagic septicaemia vaccine (Bacterin)
1998
Khan, S. | Sheikh, M.A. | Muhammad, K. (College of Veterinary Sciences, Lahore (Pakistan))
The research project was undertaken to test efficacy of alum precipitated HS vaccine (bacterin) on buffaloes, maintained at Livestock Production Research Institute (LPRI) Bahadurnagar. Okara. The study aimed at examining the efficacy of three different dosage levels of the vaccine comprising 1mg 1.5mg and 2mg dry weights of the bacteria, tried on animals of different body weights. In addition the immunopotentiating effects of levamisole on HS vaccine, were also studied on certain animals. The best results were those given by 2mg dry weight of the organism, observed in animals weighing 600 kg or above, with a GMT value of 48.5 observed on day 42nd post vaccination. The second best result was of the dose carrying 1.5mg dry weight of the organism.
显示更多 [+] 显示较少 [-]Comparative efficacy of a new oxfendazole pour-on in cattle
1998
Leathwick, D.M. | Miller, C.M. | Vickers, M.C. (AgResearch Grasslands Research Centre, Private Bag 11008, Palmerston North (New Zealand))
The efficacy of used engine oil against ticks on cattle 全文
2012 | 1998
Dreyer, K. | Fourie, L.J. | Kok, D.J. | Verwoerd, Daniel Wynand
The articles have been scanned in colour with a HP Scanjet 5590; 600dpi. Adobe Acrobat X Pro was used to OCR the text and also for the merging and conversion to the final presentation PDF-format. | The study was conducted in a peri-urban agricultural system at Botshabelo, a city in the south-eastern Free State. A questionnaire survey revealed that 88,5% of cattle farmers in the area experienced problems related to ticks and tick-borne diseases. Because of the cost of commercial acaricides the Botshabelo farmers use alternative, cheaper methods of tick control, including the application of used engine oil. The specific aim of the study was to determine whether used engine oil can effectively control ticks on cattle. From March to August 1996 the tick burdens of ten control animals and six animals treated by their owner with used engine oil were compared. The total tick burdens for the 6 month period differed significantly between the two experimental groups. The efficacy of the used engine oil on the treated group varied between 15,1% and 64,8% with a mean of 38,1 %. Although commercial acaricides can be more cost-effective, the application of used engine oil can be useful to reduce tick numbers on cattle during periods of peak abundance. Another advantage is that the use of the oil will not influence existing endemic stability to Anaplasma marginale and Babesia bigemina infections because of the residual tick burdens after treatment. | Foundation for Research Development. University of the Orange Free State.
显示更多 [+] 显示较少 [-]The efficacy of used engine oil against ticks on cattle
1998
Dreyer, K. | Fourie, L.J. (Free State Univ., Bloemfontein (South Africa). Dept. of Zoology and Entomolgy) | Kok, D.J.
Efficacy of metsulfuron methyl on associated weeds in wheat (Triticum aestivum)
1998
Tewari, A.N. | Rathi, K.S. | Singh, B. (Chandra Shekhar Azad University of Agriculture and Technology, Kanpur (India))
