农学 >>> 兽医学 >>> 兽医科学基础学科 >>> 家畜生态学 >>>
搜索结果: 1-15 共查到知识库 家畜生态学相关记录40条 . 查询时间(2.437 秒)
本试验旨在研究胚蛋给养(in ovo feeding)β-羟基-β-甲基丁酸(beta-hydroxy-beta-methylbutyrate, HMB)对肉仔鸡孵化率、生长性能及骨骼肌发育的影响。选用540枚商品代AA肉仔鸡受精蛋,随机分为3个组:空白组(不注射)、生理盐水组(7胚龄气室注射1 mL 0.9% 生理盐水)、HMB组(7胚龄气室注射1 mL含0.1% HMB的生理盐水)。出壳后,每...
Test-day records of purebred Tsigai, Improved Valachian and Lacaune ewes were analysed with a general linear model in order to investigate the effects of flock-test day, lactation number, days in milk...
Foraging behaviour is one of the distinctive behaviours of honey bees, Apis mellifera. This behaviour is the link between the honey bee colony and the ambient environment. Therefore, various in-colony...
This review examines the behaviour and productivity of the water buffalo (Bubalus bubalis) under different breeding systems and in relation to meat and milk production. At present, the steady incremen...
The present investigation aimed to evaluate the histomorphometric features of the skin of the Iranian native sheep (Bakhtiari breed). A total of 24 apparently healthy Iranian Bakhtiari sheep, aged 1–2...
In this study we investigated rumen papillae morphology and the localization and expression of the Na+/K+-ATPase in eight sheep fed hay ad libitum (h) or hay ad libitum plus additional concentrate (h/...
Claw lesions and lameness in sows are an important welfare concern as well as a cause of considerable economic loss. These problems are more common in group housing than in individual housing systems....
Growth rate, tissue repair and reproductive functions are mediated by the somatotrophic axis, the growth hormone (GH) being one of its main components. GH is released in a pulsatile manner and a singl...
Following our report on reproductive failure in gilts and sows caused by drinking over-chlorinated water at a pig-breeding farm, the present study investigated the impact of water over-chlorination on...
Reptiles have recently become a popular group of pet animals. A relatively large number of studies on the morphology of the oral cavity and method of feeding in adult individuals have been published. ...
Contents of total mercury and mercury species (methylmercury – MeHg, inorganic mercury – Hg2+) were determined in four Moravian rivers – Jihlava, Becva, Loucka and Dyje (Czech Republic). Five tissues ...
The welfare conditions in animal transport have a significant impact on the levels of stress burden on animals before slaughter in the slaughterhouse, and have an impact on veterinary decision-making ...
Borrelia burgdorferi sensu lato, is endemic in most of the regions in Europe. Pathogen circulates in nature involving ticks vector (mainly Ixodes ricinus in Europe) and wide spectrum of reservoir anim...
本文旨在研究奶牛产后子宫内优势菌群随时间的动态变化及细菌种类与子宫黏液性状之间的关系,以便于临床的快速诊断及治疗。选取分娩日期临近、产后子宫黏液性状不同的荷斯坦奶牛42头,于分娩后10、20、30和40 d采集子宫黏液,体外培养法进行细菌分离、鉴定。结果显示,产后奶牛子宫内分离率最高的细菌分别为大肠杆菌(85.7%)、变形杆菌(64.3%)和葡萄球菌(61.9%);除大肠杆菌在整个试验期分离率均较...
To examine the appearance of ingested nonylphenol in the blood, liver and egg yolk of maternal Japanese quail (Coturnix japonica), 1 or 2mg of nonlyphenol in corn oil was orally administred once a da...

中国研究生教育排行榜-

正在加载...

中国学术期刊排行榜-

正在加载...

世界大学科研机构排行榜-

正在加载...

中国大学排行榜-

正在加载...

人 物-

正在加载...

课 件-

正在加载...

视听资料-

正在加载...

研招资料 -

正在加载...

知识要闻-

正在加载...

国际动态-

正在加载...

会议中心-

正在加载...

学术指南-

正在加载...

学术站点-

正在加载...