不同因素对竹鼠繁殖性能的影响

本文分别研究了驯化程度、食物以及饲养环境对银星竹鼠繁殖性能的影响。结果表明,要想提高银星竹鼠的繁殖率,其驯化时间应超过4～5个月,应给银星竹鼠喂食混合性的饲料,并为其提供干燥、通风、清洁卫生并具有温和光照的饲养环境。     

竹鼠的人工养殖

竹鼠(Rhizomys sinensis)又名竹狸、竹馏、竹根猪等,在动物分类学上,属哺乳纲、啮齿目、竹鼠科、竹鼠属,野生的竹鼠有三种,分别是中华竹鼠(Rhizo-mys Sim esis Gray)、银星竹鼠(Rhizomys pruimosusBlyth)和大竹鼠(Rhizomys Sumatrensis Roffles)。竹鼠是较大的啮齿类动物,野生状态下广泛分布于南亚及东非一带,在我国广泛分布于秦岭以南,主要穴居于山坡竹林、橡胶林或芒草丛下,营独居生活。人工饲养的品种主要是银星竹鼠,又名花白竹鼠,这种竹鼠外观圆筒状,颈粗短,眼小,尾长。成年体重一般为1·5~2·5 kg,公母竹鼠在体重及外形上无明显差…     

竹鼠的科学饲养管理技术

本文介绍了竹鼠圈舍场址的选择方法,以及竹鼠从出生到成年的饲养管理。竹鼠的不同生长阶段饲养管理技术不同,根据竹鼠的生活习性和生长繁殖特点对竹鼠进行科学饲养管理,不仅可以减少竹鼠疾病发生,还可以降低饲养成本,增加经济效益。     

提高竹鼠繁殖率的研究

竹鼠的人工养殖是一种新兴的养殖业,繁殖方面的报道很少见,为了摸清竹鼠的繁殖规律,获得较高的饲养效益,我们在充分了解竹鼠繁殖习性的前提下开展了几方面的试验研究,现分述于后.     

银星竹鼠血液生理生化指标的测定

为了建立银星竹鼠的血液正常生理生化指标.选择健康、体重约1.60kg的人工养殖银星竹鼠16只(公10只,母6只),在普通环境中饲养观察一周,试验前禁食12h,自由饮水,通过人工保定,在无麻醉的情况下,空腹前腔静脉窦采血.用全自动血细胞分析仪和生化分析仪检测16项血液参数和22项血液生化参数,用SPSS13.0统计软件包...     

如何提高竹鼠繁殖率

竹鼠又称竹馏、芒狸、竹狸、竹根鼠、冬毛老鼠等，属于脊椎动物亚门、哺乳纲、啮齿目、竹鼠科、竹鼠属，是中国南方最珍贵的特种野生动物之一。目前作为特种养殖受到高度重视，已被广泛驯养。笔者经过3年的饲养管理，现就如何提高竹鼠的繁殖技术总结如下：     

野生竹鼠的驯化与繁殖

我站于2005年5月份在市场上选购了一批野生竹鼠进行饲养。经过一年多的努力,我们在竹鼠的驯化、繁殖上取得了一定的成绩,共繁殖29胎,断奶成活竹鼠36只。现将有关的技术介绍如下。1竹鼠的生活习性竹鼠也称竹狸,是一种穴居于竹林或茅草山地的野生动物,它体形小,全身毛呈灰黑色,耳     

中华竹鼠驯化特性的研究

阐述了中华竹鼠的生活习性 ,并对其栖息地的构建 ,食物过渡 ,合群饲养等驯化特性进行了研究和分析 ,达到了便于人工饲养和繁殖的目的     

黄芪多糖对银星竹鼠生长、血清生化和抗氧化指标的影响

为探讨黄芪多糖对银星竹鼠生长、血清生化指标和抗氧化指标的影响,试验采用单因素试验设计,将96只银星竹鼠随机分为4组,对照组饲喂基础日粮,试验Ⅰ、Ⅱ、Ⅲ组在基础日粮中分别添加200,400,600 mg/kg的黄芪多糖.预试期7d,正试期60 d,试验结束时,在对照组和生长性能较好的试验Ⅲ组中随机各选取6只竹鼠屠宰取样....     

广西竹鼠养殖现状及产业发展对策

<正>竹鼠,隶属于哺乳纲、啮齿目、竹鼠科,又称竹狸、竹鼬、竹根鼠、竹根猪等,因其喜食竹子且形似老鼠而得名。在动物分类学上,中国通常所说的野生竹鼠包括中华竹鼠(Rhizomys sinensis Gray)、银星竹鼠(Rhizomys pruimosus Blyth)、暗褐竹鼠(Rhizomys uardl Thomas)、大竹鼠(Rhizomys sumatrensis Romles)和小竹鼠(Cannomys budins)5种,是南方     

笼养灰胸竹鸡血液生理生化指标的测定

以 2 35 .75～ 339.4 0g的成年笼养灰胸竹鸡为研究对象 ,对笼养灰胸竹鸡 (2 6♀、14♂ )的 2 6项血液生理生化指标进行了测定并按性别分组统计进行差异显著性检验 ,结果表明 ,所测生理生化指标在性别之间有差异 ,但差异均不显著 (P >0 .0 5 )。     

Fine mapping of the region including hypogonadism (hgn) locus on rat chromosome 10

The hypogonadic rat (hgn/hgn) shows male sterility, reduced female fertility, and renal hypoplasia, controlled by a single recessive gene located on rat chromosome 10. We developed a fine map around the hgn locus using 565 rat backcross progeny and a Rat/Hamster radiation hybrid panel. The hgn locus was linked to Aldoc (aldolase c) and whn (winged helix of nude), and located in a 0.34-cM region between D10Rat30 and D10Rat68. The distance of the region was approximately 840-kb on rat physical map. Neither loci responsible for male sterility nor renal hypoplasia has been mapped on the homologous regions of mouse chromosome 11 and human chromosome 17. Identification of the gene responsible for the hgn mutation would provide important information on urogenital development.     

家鸡微卫星引物在灰胸竹鸡中的跨种扩增和特征分析

灰胸竹鸡(Bambusicola thoracica)是中国特有鸟类.利用近缘种家鸡(Gallus gallus)中已发表的微卫星DNA标记引物,对灰胸竹鸡进行跨种扩增,得到10个多态位点.每个位点的等位基因数为4-13个,观察杂合度为0.1220-1.000,期望杂合度为0.1183-0.8898.4对引物显著偏离Hardy-Weinberg平衡.这些引物将为研究灰胸竹鸡的系统地理学和保护遗传学提供非常有用的工具.     

笋壳作为动物饲料利用研究进展

笋壳是竹笋加工过程中产生的副产物,鲜笋壳年产量1 570万t,产量巨大。笋壳营养价值较高,且含有多种生物活性物质,是良好的饲料原料。经适当加工处理后可用作反刍动物饲料,少部分也可作为育肥猪的饲料原料。本文综述了笋壳的营养价值、加工方法及其在动物饲养中的应用进展,为笋壳的进一步开发利用提供参考。     

CNS hypomyelination in Rat Terrier dogs with congenital goiter and a mutation in the thyroid peroxidase gene

Arrested physical development and neurologic abnormalities were identified in 3 of 5 Rat Terrier puppies at 9 weeks of age. Bilaterally firm symmetrical masses were palpated in the region of the thyroid glands. Low serum total (T4) and free thyroxine (FT4, by equilibrium dialysis) and markedly elevated thyroid stimulating hormone (TSH) concentrations supported the diagnosis of hypothyroidism. At necropsy, the thyroid gland was grossly enlarged and histologically exhibited severe, diffuse hyperplasia of the follicular epithelium. Gross examination of the central nervous system revealed a myelin deficiency, most evident in the corpus callosum. Regional distribution of hypomyelination was confirmed histologically, affecting the corpus callosum and, to a lesser degree, the corona radiata, the longitudinal fibers of the pons, the pyramids, and the lateral funiculi of the spinal cord. Myelin reduction was paralleled by axon reduction, suggesting that hypomyelination was a consequence of reduced axonal formation. A homozygous nonsense mutation in the thyroid peroxidase gene was identified in the affected puppies. The dam and a clinically normal litter mate were heterozygous for this mutation, confirming simple autosomal recessive inheritance of the disease trait. The same mutation, causing congenital hypothyroidism with a goiter was previously described in the Toy Fox Terrier breed. Given the ongoing practice of introducing the Toy Fox Terrier genetic background into some Rat Terrier breeding programs to obtain a smaller stature and the apparent relative incidence of the disorder in the 2 breeds, it is likely that this mutation crossed into the Rat Terrier breed from Toy Fox Terriers fairly recently.     

BOOK REVIEWS

Book reviewed in this article:
Amphibian Medicine and Captive Husbandry. Edited by Wright KM and Whitaker BR
The Encyclopedia of Arthropod-transmitted Infections of Man and Domesticated Animals. Edited by Service MW
The Handbook of Experimental Animals. The Laboratory Rat. Edited by Kinke GJ
Herd Health, Food Animal Production Medicine. Radostits OM, Harcourt
Natural Compounds In Cancer Therapy. Boik J     

蚕沙水提液对小鼠药理作用的实验研究

研究了蚕沙水提液对小鼠体重、耐力、催眠、镇静的药理作用。蚕沙水提液可以显著增加小鼠的体重,减少小鼠自主活动次数,缩短戊巴比妥纳引起的入睡潜伏期并延长睡眠时间,表现出明显的营养、镇静、催眠等作用。结果显示,蚕沙具有很好的药用与饲料用开发价值。     

试论草原鼠类之定位

鼠类既为草原生态系统之成员，则必为系统所需要，鼠之成害，非鼠存在之原状，乃人为所致，故除害之方法不可单纯诛杀，应究其成因，循其规律，察其关系，致力于恢复其无害时之生境条件，则鼠害自除，且一劳永逸。     

氧及活性氧代谢相关基因在大鼠肝脏再生中的作用

为了在基因转录水平了解氧及活性氧代谢相关基因在大鼠肝脏再生(LR)中的作用,用Rat Genome 230 2.0芯片检测了上述在大鼠再生肝中表达变化,用真、假手术比较方法确定肝再生相关基因。初步证实上述基因中81个与肝再生相关。其中,肝再生启动、G0/G1过渡、细胞增殖、细胞分化和组织结构功能重建等四个阶段起始表达的基因数为42、9、35和2;基因的总表达次数为42、31、77和50。表明相关基因主要在肝再生启动阶段起始表达,在不同阶段发挥作用。它们共上调317次,下调161次,分为6类表达方式,表明肝再生中这些基因的表达变化多样和复杂。芯片结果分析表明,肝再生早期和前期过氧化氢和超氧化物代谢增强;几乎在整个肝再生中氧化反应和谷胱甘肽结合反应增强。     

Dogs as vectors of Streptobacillus moniliformis infection?

Rat bite fever is a bacterial zoonosis transmitted through the bite of rats. One of the two etiological agents that cause rat bite fever is Streptobacillus moniliformis. Rat bite fever is rare and very likely under diagnosed but occurs worldwide. Other animals, like dogs and cats that have mouthed a rat are often mentioned in the literature as potential risks for the attraction of rat bite fever. However, rat bite fever caused by the bite of a dog or cat has very seldom been documented. Therefore, to identify the possible risk for humans to become infected with S. moniliformis after having been bitten by a dog that has been in contact with rats, the presence of S. moniliformis in the mouth of these dogs was tested with molecular methods. Swabs taken from the mouth of 18 dogs with proven contacts with rats were tested for the presence of S. moniliformis DNA by PCR. An amplicon of the right size was obtained in 10 of the 18 dogs. Nucleotide sequencing of five amplicons of PCR positive samples demonstrated the presence of S. moniliformis DNA in the mouth of three dogs. A bite by these dogs therefore might infect humans with S. moniliformis and cause rat bite disease.