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养殖蝇蛆是解决动物性蛋白质来源的好办法 总被引：3，自引：0，他引：3
养殖蝇蛆主要是为了生产优质动物性蛋白饲料,提供畜牧水产养殖业尤其是珍稀动物养殖业之所需。据测定,干蝇蛆粉含蛋白质53.24％～62.49％,脂肪12.61％,含有动物所需的各种氨基酸,营养价值高。蝇蛆可与鱼粉、蚕蛹、肉骨粉齐名。养殖蝇蛆确是解决动物性蛋白饲料来源的途径之一。在朝鲜、美国、俄罗斯、肯尼亚等国已养殖生产蝇蛆并应用于饲料工业。我区自80年代初也已开始蝇蛆的试养工作,到84年以后进入实 相似文献
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蝇蛆生产周期短、易于培养、设备简单，蛆体蛋白质含量高、氨基酸丰富且较平衡，是畜禽和水产动物的优质动物性蛋白源。近几年来，有关开发利用蝇蛆蛋白的研究报道和介绍蝇蛆培养方法的文章不少。但要进行规模化、连续性生产蝇蛆蛋白，还需研究解决一些关键技术和根据具体情况进行效益分析。笔者对蝇蛆培养过程的各个环节进行了试验研究，其中发现培养基料组成与配比是影响蛆产量的主要因素，也是降低生产成本、提高经济效益的关键。培养蝇蛆的基料，报道和介绍最多的是麸皮、鸡粪、猪粪。本文根据麸皮与鸡粪不同配比培养蝇蛆的效果及成本进… 相似文献
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动物乳腺生物反应器是应用重组DNA技术和转基因技术,获得的在乳腺中特异表达外源基因、高效生产活性功能蛋白的转基因动物个体。动物乳腺生物反应器主要用于生产重大疾病防治的蛋白等创新型药物品种,是国家战略性新兴产业的重点发展内容。转基因动物作为乳腺反应器生产药用蛋白,将拓宽畜牧生产领域,使畜牧业成为现代生物医药的上游产业,国家战略性新兴产业的基础产业,是未来畜牧科技创新的亮点和特点。 相似文献
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蝇蛆收集及喂猪效果试验 总被引：1，自引：0，他引：1
蝇蛆收集及喂猪效果试验蓝旅涛，张华，黄会萱，汪河海（江西省农科院畜牧兽医研究所，江苏省农科院畜牧研究所）家蝇属于双翅目，全变态昆虫，爱食发酵、腐败物质和各种动物的粪便，其繁殖能力强，速度快，一只雌蝇，继代繁殖，年产蛆约一亿只。据报导，蝇蛆含有很高的动... 相似文献
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一、蝇蛆养殖的应用前景 蝇蛆不仅是一种很有前途的廉价优质动物蛋白源,而且其深加工也有大发展潜力,可开发成医药、保健品、生化制剂、农药及化工产品等。蝇蛆作为优良的动物蛋白饲料,可用于饲喂畜禽和鱼类等动物;蝇蛆可提取蛋白质,用于食品工 相似文献
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Krizsan SJ Nyholm L Nousiainen J Südekum KH Huhtanen P 《Journal of animal science》2012,90(9):3162-3173
The objective of this study was to compare the application of different in vitro and in situ methods in empirical and mechanistic predictions of in vivo OM digestibility (OMD) and their associations to near-infrared reflectance spectroscopy spectra for a variety of forages. Apparent in vivo OMD of silages made from alfalfa (n = 2), corn (n = 9), corn stover (n = 2), grass (n = 11), whole crops of wheat and barley (n = 8) and red clover (n = 7), and fresh alfalfa (n = 1), grass hays (n = 5), and wheat straws (n = 5) had previously been determined in sheep. Concentrations of indigestible NDF (iNDF) in all forage samples were determined by a 288-h ruminal in situ incubation. Gas production of isolated forage NDF was measured by in vitro incubations for 72 h. In vitro pepsin-cellulase OM solubility (OMS) of the forages was determined by a 2-step gravimetric digestion method. Samples were also subjected to a 2-step determination of in vitro OMD based on buffered rumen fluid and pepsin. Further, rumen fluid digestible OM was determined from a single 96-h incubation at 38°C. Digestibility of OM from the in situ and the in vitro incubations was calculated according to published empirical equations, which were either forage specific or general (1 equation for all forages) within method. Indigestible NDF was also used in a mechanistic model to predict OMD. Predictions of OMD were evaluated by residual analysis using the GLM procedure in SAS. In vitro OMS in a general prediction equation of OMD did not display a significant forage-type effect on the residuals (observed - predicted OMD; P = 0.10). Predictions of OMD within forage types were consistent between iNDF and the 2-step in vitro method based on rumen fluid. Root mean square error of OMD was least (0.032) when the prediction was based on a general forage equation of OMS. However, regenerating a simple regression for iNDF by omitting alfalfa and wheat straw reduced the root mean square error of OMD to 0.025. Indigestible NDF in a general forage equation predicted OMD without any bias (P ≥ 0.16), and root mean square error of prediction was smallest among all methods when alfalfa and wheat straw samples were excluded. Our study suggests that compared with the in vitro laboratory methods, iNDF used in forage-specific equations will improve overall predictions of forage in vivo OMD. The in vitro and in situ methods performed equally well in calibrations of iNDF or OMD by near-infrared reflectance spectroscopy. 相似文献
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大庆市羊东毕吸虫病流行病学调查 总被引：1，自引：0，他引：1
对大庆市羊东毕吸虫病的流行病学进行了调查研究。结果表明，大庆有3种东毕吸虫，即程氏东毕吸虫（O.cheni)、土耳其斯坦东毕吸虫（O.turkestanica)和土耳斯坦东毕吸虫结节变种（O.turkestanican var.thuberculata)；中间宿主螺类有1种，即卵萝卜螺；东毕吸虫病在大庆分布很广，所调查的4区2县均有发生，羊东毕吸虫平均感染率分别为50．33％，平均死亡率为21．12％，大庆羊急性病例发病时间为8月上旬至10月下旬，慢性病例为11月上旬至翌年2月中旬。 相似文献
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中国圈养野生动物疫苗使用调查 总被引：1，自引：0，他引：1
2005年对中国动物园协会单位中的18家动物园饲养野生动物疫苗免疫情况进行调查。受调查动物园在野生动物疫苗使用和动物种类方面具有一定的代表性。调查结果显示动物园动物现共使用18类36种疫苗,预防31种疫病。其中哺乳动物使用14类24种疫苗,预防24种疫病;禽类使用4类12种疫苗,预防7种疫病。使用范围最广的有禽流感、犬瘟热疫苗等、新城疫疫苗、猫瘟热疫苗等。共有24目58科动物接种疫苗,其中食肉动物类1目8科,食草动物类3目9科,杂食动物类2目3科,禽类18目38科。研究结果提示应加强动物园之间疫病信息交流、防疫资源的利用、疫病监测和研究,加大对动物园动物疫病的研究投入,逐步建立动物园动物统一的防疫规程。 相似文献
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Information gathered from cases of fowl cholera (FC) in commercial turkey flocks through case records, flock records, and telephone and mail surveys was used to estimate disease costs. The cost to the Georgia commercial turkey industry in 1986 from preventive measures, treatment of outbreaks, and production losses from the disease was estimated at $634,545. The cost of FC per kg of live production was estimated to be $0.015. 相似文献
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猪伪狂犬病是由伪狂病病毒(Pseudorabies virus PRV)引起的急性传染病。其特征是成年猪常为隐性感染，可有流产、死胎、呼吸系统症状，新生仔猪除神经症状外还可侵害消化系统，并伴大批死亡。本病已经给全世界的养猪业造成严重的损失，我国许多地区已报道该病。为进一步探讨该病的控制、净化措施，我们对12个养猪场共856分血清采用美国嗍公司的ELISA试剂盒进行了抗体检测。 相似文献
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W A Vestre 《Modern veterinary practice》1984,65(2):93-97
In 5 cases of glaucoma (2 from trauma, 2 from narrowed drainage angles, 1 secondary to lens extraction), cyclocryotherapy was used to control intraocular pressure. In all cases the intraocular pressure decreased, with the usual result being a cosmetic and painless but blind eye. 相似文献
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Occurrence of MRSA in pigs and in humans involved in pig production--preliminary results of a study in the northwest of Germany 总被引：1，自引：0，他引：1
Meemken D Cuny C Witte W Eichler U Staudt R Blaha T 《DTW. Deutsche tier?rztliche Wochenschrift》2008,115(4):132-139
In 2007, 678 pigs of all age groups out of 347 different farms from Lower Saxony and Northrhine-Westphalia and 86 persons occupationally exposed to pigs were investigated for their nasal colonisation with methicillin-resistant Staphylococcus areus (MRSA) by the Field Station for Epidemiology of the University of Veterinary Medicine Hannover and the Robert Koch-Institute. At the individual animal level, a frequency of positive results of 13% (n = 85 positive animals) and at the herd level, a frequency of positive results of 18% (n = 62 positive herds) were found. All isolates were assigned to the Multilocus Sequence Typing Type ST398. Within MRSA-positive herds, there were more MRSA-negative than MRSA-positive animals. Among the occupationally exposed persons (veterinarians, laboratory personnel and meat inspection personnel), 20 persons (23%) showed a nasal colonisation with MRSA ST398. A quite strong association between the intensity of the contact to pigs with the frequency of nasal colonisation in the occupationally exposed persons was detected. None of the animals or the humans nasally colonised by MRSA ST398 showed any clinical symptoms of a staphylococcal infection. Conclusions are drawn on the herd and intra-herd prevalence of the nasal colonisation of pigs with MRSA ST398 in pigs, but especially on which questions need to be addressed by further research. 相似文献
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为了解西藏拉萨市家禽禽流感抗体水平,2017年8月随机选择免疫过H5禽流感疫苗的8个规模养殖场、2个散养户、3个活禽交易市场,共13个群体,采集1 041份家禽血清样品进行H5、H7、H9亚型禽流感HI抗体检测。结果显示：H5亚型禽流感免疫抗体合格率为45.73%,H7、H9亚型抗体阳性率分别为21.13%、52.64%;养殖场、散养户和活禽交易市场的不同亚型抗体水平存在较大差异,规模化养殖场的H7亚型抗体阳性率最高（29.92%）,活禽市场的H5、H9亚型阳性率最高（78.16%、79.31%）,散养户的所有亚型抗体阳性率均最低。结果表明,拉萨市H5亚型禽流感疫苗免疫效果较差,特别是散养户,疫病发生风险较高,H7、H9亚型疑似自然感染率较高,应进一步查明原因,及时采取相应的措施,防止疫情发生。 相似文献