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(1.515 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...
Factors affecting milk yield and ewe’s lactation curves estimated with test-day models
Tsigai Improved Valachian Lacaune milk yield environmental effects lactation curve
2015/6/2
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...
The foraging behaviour of honey bees, Apis mellifera: a review
colonies Apis mellifera flying workers ethology
2015/4/17
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...
The behaviour and productivity of water buffalo in different breeding systems: a review
outdoor systems productivity production systems animal welfare stress
2015/4/17
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...
A quantitative evaluation of different regions of skin in adult Iranian native sheep
Bakhtiari sheep evaluation region various dermal structures
2015/4/17
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...
Altered Na+/K+-ATPase expression plays a role in rumen epithelium adaptation in sheep fed hay ad libitum or a mixed hay/concentrate diet
sheep rumen epithelial cells transport protein
2015/4/15
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/...
Prevalence and risk factors of claw lesions and lameness in pregnant sows in two types of group housing
claw health group housing locomotor disorders sows
2015/4/15
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....
A study of serum insulin-like growth factor type 1 (IGF-1) concentrations in resting untrained Andalusian horses: influence of age and gender
age growth hormone horse insulin-like growth factor sex
2015/4/15
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...
Association between over-chlorinated drinking water and suckling, nursery and fattening pig death losses
death loss pig atering ree chlorine residual
2015/4/15
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...
Light and scanning electron microscopy of the developing lingual papillae in the green iguana, Iguana iguana
green iguana tongue development morphology
2015/4/15
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. ...
Determination of total mercury and mercury species in fish and aquatic ecosystems of Moravian rivers
speciation total mercury methylmercury inorganic mercury chub (Leuciscus cephalus) Jihlava Becva Loucka Dyje muscle gills liver kidney skin zoobenthos sediment water sample stability
2015/3/5
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 impact of the transport distance and season on losses of fattened pigs during transport to the slaughterhouse in the Czech Republic in the period from 1997 to 2004
welfare stress slaughter pigs transportation time ambient temperature summer months
2015/3/5
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 ...
The importance of dogs in eco-epidemiology of Lyme borreliosis: a review
Borrelia burgdorferi dogs ecology epidemiology
2015/2/5
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...
产后奶牛子宫内微生物菌群动态变化及其与子宫黏液性状关系的研究
奶牛 产后 子宫黏液 细菌菌群
2013/12/2
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...
Concentration of Orally Administered Nonylphenol in Blood,Liver and Egg Yolk of Maternal Japanese Quail (Coturnix japonica)
nonylphenol oral administration blood egg yolk Japanese quail
2009/7/31
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...