نتایج جستجو برای: the birds
تعداد نتایج: 16059069 فیلتر نتایج به سال:
Avian intestinal spirochaetosis (AIS) is a condition arising from colonization of the caeca and colon of birds with anaerobic spirochaetes of the genus Brchyspira. The purpose of the present study was to evaluate PCR amplification from formalin-fixed, paraffin-embedded tissue method for detecting infected laying hens with Brachyspira pilosicoli with the same primers that have been used for det...
Climate change and human activities have increased negative pressure on natural ecosystems. Wetlands are such ecosystems that widely affected by these negative changes. Birds as a part of wildlife in a wetland have damaged by destruction of wetlands, so, a large group of them, are at risk of extinction. Habitat destruction in wetlands in arid and semi-arid areas has more negative effects on the...
BACKGROUND: Staphylococcus aureus is a highly versatile pathogen of a large number of domestic ani- mals, including avian species. There is limited information about S. aureus isolated from companion and wild birds in Iran. OBJECTIVES: The aim of this study was to determine drug resistance and random-amplified polymorphic DNA-PCR (RAPD-P...
The purpose of this work was to scan chromosome 5 for mapping QTL affecting live weight in an F2 population. A three generation resource population was developed by using two distinct Japanese quail strains, wild and white to map quantitative trait loci underlying hatching weight and growth traits. Eight pairs of white (S) and wild (W) birds were crossed reciprocally and 34 F1 birds were produ...
cage birds like canaries can potentially harbor human pathogens and contribute to transmission and spread of drug resistant infectious agents to human. considering many people's interests to keep canaries, present study was conducted in canaries from yazd to investigate the beta-lactam antibiotics resistant escherichia coli. 109 e. coli isolates from canary faeces in yazd were evaluated to...
BACKGROUND: Staphylococcus aureus is a highly versatile pathogen of a large number of domestic ani- mals, including avian species. There is limited information about S. aureus isolated from companion and wild birds in Iran. OBJECTIVES: The aim of this study was to determine drug resistance and random-amplified polymorphic DNA-PCR (RAPD-P...
Extended Abstract Introduction and objectives: Lactic acidosis occurs as a result of hypoxia and rapid growth of broilers and can be considered as a physiological stress. In two experiments, the effect of extra nutritional levels of vitamin D3 and guanidinoacetic acid was investigated on performance, relative weight of organs, some physiological and behavioral parameters of broiler chicks unde...
salmonellosis is one of the most important zoonotic diseases worldwide. salmonella infections in wild birds are reported frequently. the objectives of this study were to isolate salmonella serovars from a large collection of samples obtained from pet birds in tehran, iran, and then to determine the serotypes and antimicrobial susceptibility profile of the isolates. between october 2007 and augu...
The aims of this study were to compare the promoter sequence of the mannose-binding lectin (cMBL) gene in Iranian native and commercial chicken strains; as well as to compare the cMBL gene expression in crossbred and inbred chickens. In total 79 native (Western Azerbaijan native fowls, WANF) and 49 commercial (Arian Commercial Strain, ACS) birds were reared as parents under same management prac...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید