Isolation of Actinomyces hyovaginalis from sheep and comparison with isolates obtained from pigs

Actinomyces hyovaginalis, an organism initially described from pigs, was recovered from nine sheep and a moufflon. Further strains of A. hyovaginalis were recovered from five samples from pigs over the same period. 16S rRNA sequencing and extensive phenotyping demonstrated high similarity between the ovine and porcine isolates; however differences with respect to erythritol, adonitol and l-arabitol fermentation were detected. Ovine isolates were made from various sample sites including abscesses and highlight the importance of the accurate identification of the various coryneform isolates which affect sheep. A. hyovaginalis can be added to the growing list of coryneforms which can cause disease in sheep including Corynebacterium pseudotuberculosis, Trueperella pyogenes and Arcanobacterium pluranimalium.     

Isolation of Actinobacillus suis from a cat's lung.

Actinobacillus suis has been isolated from the lungs of 9-month-old cat. The bacterium was characterized biochemically as well as genetically, and its sensitivity profile to different antimicrobial agents was established. The role of this isolate in the cat's condition is discussed.     

Isolation of Corynebacterium pilosum and Actinomyces pyogenes from cystitis and vulvovaginitis infection in a 2-month-old female calf

Cystitis and vulvovaginitits, due to Corynebacterium pilosum and Actinomyces pyogenes infection in a 2-month-old female calf, is described. The prominent clinical signs were urinary incontinence, adherence of triple phosphate crystals to the vulvar hair and ulceration on the vulva, the ventral side of the tail skin and the perineum. Only a mild inflammation of the bladder mucosa and submucosa was seen on histological examination.     

Isolation of Corynebacterium pilosum and Actinomyces pyogenes from Cystitis and Vulvovaginitis Infection in a 2-month-old Female C

Cystitis and vulvovaginitits, due to Corynebacterium pilosum and Actinomyces pyogenes infection in a 2-month-old female calf, is described. The prominent clinical signs were urinary incontinence, adherence of triple phosphate crystals to the vulvar hair and ulceration on the vulva, the ventral side of the tail skin and the perineum. Only a mild inflammation of the bladder mucosa and submucosa was seen on histological examination.     

猪精液中细菌分离与鉴定试验

人工授精日益受重视,但存在检测简单等问题。本研究从猪精液中分离出葡萄球菌、链球菌、铜绿假单胞菌、克雷伯氏菌等。     

Isolation of infectious bovine rhinotracheitis virus from a latently infected feral pig

Infectious bovine rhinotracheitis (IBR) virus was isolated from the trigeminal ganglion of a feral pig after dexamethasone treatment. Three pigs inoculated intranasally with the IBR virus did not respond clinically or serologically. The virus was re-isolated from tonsillar swabs from two animals on Post-Infection Day (PID) 3.     

Isolation of Moellerella wisconsensis from the lung of a goat

This report describes the first isolation of Moellerella wisconsensis from the lung of a goat in Italy and represents the fourth isolation of this rare enterobacterial species from non-human sources reported in the literature. In fact, since its first isolation, M. wisconsensis has only been described in a few other occasions and often in clinical samples associated with cases of human enteritis.     

Isolation of Streptococcus cuniculi from corneal lesion in laboratory-raised mice

Corneal lesions appearing as white mass beneath intact epithelium, with ocular discharge in one mouse, was observed in a batch of laboratory-raised BALB/c mice (n=9 of 56). The affected mice remained active, well-groomed and had normal appetite. Isolates recovered from swab cultures of the external and internal contents of the eye had partial 16S rRNA gene sequence of 99.1% similarity to Streptococcus cuniculi. No previous report of S. cuniculi infection in laboratory rodents has been presented. The isolate was susceptible to all antibiotics tested. We suggest S. cuniculi is an opportunistic bacteria in laboratory mice but are uncertain of its source. Our findings revealed that S. cuniculi is able to colonize laboratory mice and should be considered when mice present with eye lesion or ocular discharge.     

Isolation of Arcanobacterium (Actinomyces) pyogenes from cases of feline otitis externa and canine cystitis.

Arcanobacterium pyogenes is a normal inhabitant of the mucous membranes of domestic animals, such as cattle, sheep, swine, and goats. It is also an opportunistic pathogen in these animals, where it causes a variety of purulent infections involving the skin, joints, and visceral organs. Two recent cases of isolation of A. pyogenes from companion animals are reported. In the first case, a cat presented with a chronic otitis externa, from which A. pyogenes was isolated in pure culture. The second case involved a dog with a urinary tract infection, where A. pyogenes was isolated from urine as the predominant bacterial species. In both cases, the A. pyogenes isolates were presumptively identified by macrobiochemical tests, and then their identities were confirmed by polymerase chain reaction analysis and 16S rRNA gene sequencing.     

广东省部分猪场副猪嗜血杆菌的分离与鉴定

从广东部分猪场发病猪的肺脏、气管和扁桃体分离细菌并培养,获得3株可疑菌株。根据发病猪的临床症状、剖检病理变化以及菌落的形态、菌体特征和生化试验结果,初步鉴定所分离的3株菌株为副猪嗜血杆菌。在细菌学鉴定的基础上,同时结合特异性PCR检测方法进行鉴定,结果3株菌株均扩增出822bp的特异性目的条带,进一步证实了所分离的3株菌株均为副猪嗜血杆菌。     

猪产气荚膜梭菌的分离鉴定

产气荚膜梭菌（Clostridium perfringens）是一种革兰氏阳性梭状杆菌,能产生芽孢,并能形成特殊荚膜的专性厌氧菌。在自然界中广泛分布,可见于土壤、污水、饲料、粪便以及人畜胃肠道内,是一种条件性致病菌。该菌至少可以产生15种以上的毒素,能对人和多种动物致病,     

Isolation and culture of pig tonsil lymphocytes

Tonsils are secondary lymphoid organs that play an important role in host defense. The aim of our study was to develop reliable procedures for isolation and culture of pig tonsil cells, and to validate their possible use in functional immunoassays. Using our isolation procedure, we recovered on average 238.7±107.1×10(6) cells per tonsil couple with a mean vitality of 89.8±2.7%. These values significantly decreased 8 months after freezing at -80°C along with the subsequent spontaneous release of both IgA and IgG in culture. These results suggest to use pig tonsil cells within 2 months from thawing to maintain suitable conditions in terms of recovery, vitality and release of antibody in vitro. Tonsil mononuclear cells also showed the ability to secrete antimicrobial peptides and to respond in vitro to immunological stimuli. On the whole, our study has defined operating conditions for tonsil processing, control of bacterial contaminations, time limits of storage at -80°C, as well as for evaluating polyclonal Ig production in vitro. Such procedures are likely to be of some importance in studies on regional immunity and in the development of large animal models for biomedical sciences.     

The British pig health schemes: integrated systems for large-scale pig abattoir lesion monitoring

Pig health schemes based on abattoir inspections provide an integrated system to optimise the postmortem detection and the reporting of pathological lesions. In Great Britain, two initiatives have been implemented by the pig industry: Wholesome Pigs Scotland (WPS) and the BPEX Pig Health Scheme (BPHS). These schemes record the presence of a range of pathological lesions detected by means of detailed inspection of the pluck and the skin of the slaughtered pigs. The lesions are those associated with a reduction in performance traits or are indicators of animal welfare problems. This paper aims to provide an overview of the objectives behind the BPHS and their activities, outlining similarities and differences between WPS and BPHS on five main operational topics: the lesions monitored, the administration of the schemes, flow of the information, inspection strategies and the major idiosyncratic characteristics of the schemes. These initiatives inform individual producers and their veterinarians of the occurrence of pathological conditions affecting their pig herds. Additionally, they offer the added value of providing nationwide disease monitoring information and have the potential to be a useful surveillance tool for emerging and enzootic conditions.     

Actinomyces endophthalmitis and pneumonia in a dog

Actinomyces endophthalmitis and pneumonia were diagnosed in a young rottweiler that was presented with lethargy, weight loss, right blepharospasm, and ocular discharge. The affected eye was enucleated, and the pneumonia was treated successfully with systemic antibiotics.