共查询到19条相似文献，搜索用时 46 毫秒
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杨铭 《养殖与饲料．饲料世界》2018,(8)
在青海海晏县甘子河乡设置每洞10、15、20、25粒毒饵和70%、80%、90%和100%的投洞率,研究利用C型肉毒杀鼠素毒饵不同投饵量和投洞率对高原鼠兔防治效果的影响。试验结果表明,每洞投放毒饵20粒、25粒和投洞率90%、100%的情况下,高原鼠兔有效洞口减退率符合《草地鼠害生物防治技术规程》(DB63/T787-2009)的要求。 相似文献
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将C·肉毒杀鼠素铒粒在不同存放条件下进行高原鼠兔灭治试验,结果表明,配制后的C·肉毒杀鼠素饵粒在-16℃冷库内放置47 d的0.1%和0.2%两种浓度的饵粒防效分别为94.67%和95.63%;配制后的C·肉毒杀鼠素饵粒在1～9℃仓库内放置13 d的0.1%与0.2%两种浓度的饵粒防效分别为89.10%和90.88%.在0.05水平上,A、B处理间无显著差异,C、D处理间也无显著差异.但A、B与C、D处理间存在显著差异,表明在1～9℃仓库内放置13 d的C·肉毒杀鼠素饵粒其毒力可能有所下降. 相似文献
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张明 《养殖与饲料．饲料世界》2008,(9)
通过应用D型肉毒杀鼠素防治高原鼠兔的小区试验,结果表明：1000万毒价／mL的D型肉毒毒素水剂,按1／1000、1．25／1000、1．5／1000、2／1000的浓度配制毒饵,平均校正灭洞率可分别达到87．26％、86．74％、88．37％和90．03％,差异均不显著。本着经济、安全、高效的宗旨,以1．5／1000的浓度配制毒饵使用较为适宜。 相似文献
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分别使用浓度为0.05%,0.1%,0.15%的C型和D型肉毒素燕麦毒饵(Avena sativa L.),对祁连山北麓山地草原的高原鼠兔(O chotona curzoniae)进行灭效试验。结果表明:随着浓度的增加2种生物毒素的灭效率均提高,其中0.1%和0.15%的D型肉毒素燕麦毒饵的灭效率优于0.05%,0.1%,0.15%C型和0.05%D型肉毒素,但是两者灭效率之间无显著性差异。因此,在同等防治效果前提下,使用0.1%D型肉毒素燕麦毒饵防治祁连山北麓高原鼠兔较经济、环保。 相似文献
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《青海畜牧兽医杂志》2016,(1)
为了解D型肉毒毒素颗粒防治草原鼠兔的可行性、确定现地灭鼠毒饵含毒量,采用含毒价为4万、8万、12万、16万毒价/g的D型肉毒毒素颗粒毒饵,进行防治高原鼠兔的试验,结果 4万、8万、12万、16万毒价/g的D型肉毒毒素颗粒毒饵平均灭效分别为95.08%、97.68%、99.32%和99.58%,随着含毒量的增加,灭效也随之提高,与对照0.1%D型肉毒灭鼠剂燕麦毒饵灭效90.51%比较,差异显著。表明D型肉毒毒素颗粒毒饵可用于高原鼠兔的防治。通过本次试验,确定8—12万毒价/g较为合适。 相似文献
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张明 《养殖与饲料．饲料世界》2008,(9):72-74
通过应用D型肉毒杀鼠素防治高原鼠兔的小区试验，结果表明：1000万毒价／mL的D型肉毒毒素水剂，按1／1000、1．25／1000、1．5／1000、2／1000的浓度配制毒饵，平均校正灭洞率可分别达到87．26％、86．74％、88．37％和90．03％，差异均不显著。本着经济、安全、高效的宗旨，以1．5／1000的浓度配制毒饵使用较为适宜。 相似文献
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将C·肉毒杀鼠素铒粒在不同存放条件下进行高原鼠兔灭治试验，结果表明，配制后的C·肉毒杀鼠素饵粒在-16℃冷库内放置47d的Q1％和n2％两种浓度的饵粒防效分别为94．67％和95.63％；配制后的C·肉毒杀鼠素饵粒在1-9℃仓库内放置13d的0.1％与0.2％两种浓度的饵粒防效分别为89．10％和90．88％。在0.05水平上，A、B处理间无显著差异，C、D处理间也无显著差异，但A、B与C、D处理间存在显著差异，表明在1-9℃仓库内放置13d的C·肉毒杀鼠素饵粒其毒力可能有所下降。 相似文献
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通过冬、春两季对高原鼠兔对燕麦、春小麦、青稞三种饵料的适口性及采食量的观察试验,表明青海产春小麦明显优于燕麦和青稞,具有推广前景,该项试验结果将有助于在大面积治理高原鼠兔时选择成本低、适口性强、易于采食染毒的饵料,从而提高灭鼠效果。 相似文献
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B D Perry R Brooks C M Foggin J Bleakley D H Johnston F W Hill 《The Veterinary record》1988,123(3):76-79
A baiting system suitable for the delivery of oral rabies vaccine to dog populations in developing countries was studied in Zimbabwe. In a field trial, 369 sponge baits containing a placebo liquid, rhodamine B as a biomarker and a pungent attractant were distributed over an area of 60 sq km in a communal land in Manicaland with a dog population of over 500. Twenty-four hours later 21 per cent of the baits were recovered and 79 per cent of these had been significantly bitten or chewed. Twenty-five per cent of the dogs examined showed evidence of superficial staining by rhodamine B indicating that they had chewed baits or ingested their contents. It was concluded that the system would deliver an oral vaccine to dog populations more efficiently than had been the case in comparable studies in wildlife populations, but that the number of baits per unit area should in future studies be increased. 相似文献
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玛曲县鼠害草地综合治理途径的研究 总被引：13，自引：0，他引：13
本试验设在玛曲县鼠害危害严重的高寒草甸草地上，进行毒饵灭鼠、补播和封育等防治鼠害综合试验研究。结果表明，毒饵灭鼠防治效果好，在短期能抑制鼠害发生，灭鼠 封育 补播能达到生态灭鼠的目的，可以尽快恢复植被，是治理鼠荒地的有效途径。 相似文献
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近四十年来,海晏县的草地鼠虫害防治工作,取得了较好的防治成效,有效地遏制了草地鼠虫害泛滥和危害日趋加重的现象,为促进海晏县草地生态环境治理和畜牧业生产的发展起到了积极有效的作用,并取得明显的社会、经济和生态效益。 相似文献
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Ballesteros C Gortázar C Canales M Vicente J Lasagna A Gamarra JA Carrasco-García R Fuente Jde L 《Research in veterinary science》2009,86(3):388-393
The objective of this study was to develop and evaluate new baits for the oral delivery of vaccine preparations to 2–4 month-old wild boar piglets. Baits were prepared using a matrix composed of wild boar feed, wheat flour, paraffin, sacarose and cinnamon-truffle powder attractant with polyethylene capsules dipped into the matrix to introduce vaccine formulation. Physical stability studies demonstrated that baits were stable for at least three days at temperatures as high as 42 °C. Recombinant Escherichia coli expressing the membrane-displayed BM95-MSP1a fusion protein were used to test bacterial viability in the baits and the antibody response in orally immunized wild boar. The E. coli viability was not significantly affected after bait incubation at 25 and 37 °C for 96 h. Bait acceptance studies using artificial feeders in the field showed that baits were accepted by 2–3 month-old animals, the preferred age for vaccination. Orally immunized wild boar piglets excreted recombinant E. coli in the feces and developed antibody titers to recombinant BM95-MSP1a protein, thus confirming that vaccine composition was released and reached the wild boar gastrointestinal track. The results of these experiments support the use of these baits for oral delivery of vaccine formulations to 2–4 month-old wild boar piglets. 相似文献
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An epidemic of sylvatic rabies in Finland--descriptive epidemiology and results of oral vaccination.
M Nyberg K Kulonen E Neuvonen C Ek-Kommonen M Nuorgam B Westerling 《Acta veterinaria Scandinavica》1992,33(1):43-57
When rabies reappeared in Finland in April 1988, the country had been rabies free since 1959. Soon a picture of sylvatic rabies become evident, its main vector and victim being the raccoon dog (Nyctereutes procyonoides). Between 8 April 1988 and 16 February 1989, 66 virologically verified cases were recorded (48 raccoon dogs, 12 red foxes, 2 badgers, 2 cats, 1 dog and 1 dairy bull) in an area estimated at 1700 km2 in south-eastern Finland. The greatest distance between recorded cases was 67 km. A positive reaction with monoclonal antibody p-41 indicated that the virus was an arctic-type strain. A field trial on oral immunization of small predators was initiated in September 1988 using Tübingen fox baits according to the Bavarian model of bait distribution. Each bait contained 5*10(7) TCID50/ml modified live rabies virus (SAD-B19). The 6 months' surveillance indicate a seroconversion rate of 72% (N = 126) in the raccoon dog population, 67% (N = 56) in the red foxes and 13% (N = 16) in the badgers, when titers greater than or equal to 1.0 IU/ml are considered seropositive. In the whole follow-up period, no statistically significant difference could be detected between the raccoon dogs and red foxes in the rate of seroconversion or in the uptake of tetracycline from the baits. Notably high antibody levels were recorded in both raccoon dogs and red foxes within 4-5 months after vaccination. Of the seropositive animals, the proportion of animals with titers 3.0 IU/ml or greater was higher in raccoon dogs (73%) than in red foxes (51%) (x2 = 5.29, p less than 0.05). The trial shows that raccoon dogs can be immunized against rabies in the field with vaccine baits originally developed for controlling sylvatic rabies in foxes. 相似文献