Detection of clinical bovine mastitis caused by Mycoplasma bovis in Brazil.

The work reported in this research communication investigated the occurrence of Mycoplasma bovis (M. bovis) in milk samples from cows with clinical mastitis on dairy farms from seven Brazilian states. We hypothesized that M. bovis was present in bovine clinical mastitis milk in Brazil. A total of 561 milk samples were cultured on Hayflick agar and incubated in a microaerophilic atmosphere at 5% CO2. Polymerase chain reaction (PCR) was performed for the detection of Mycoplasma spp. and Mycoplasma bovis in milk samples. Mycoplasma spp. were isolated in 2% of the milk samples, and Mycoplasma bovis was verified in 3% of the milk samples by PCR. The results showed that Mycoplasma bovis is involved in clinical mastitis in Brazilian dairy herds. We emphasize the need for further studies to investigate the infection by this agent in clinical mastitis cases, particularly in Brazil, due to the lack of knowledge about its prevalence.

Short communication: The first report of Cyberlindnera rhodanensis associated with clinical bovine mastitis.

An acute case of clinical mastitis in a Holstein cow from second lactation is reported here. A milk sample from the affected quarter was cultured on 5% bovine blood agar and incubated at 37°C for 72 h. After 24 h of incubation, numerous colonies of yeast were observed: the Candida characteristic was not detected by CHROMagar Candida (Difco, Franklin Lakes, NJ). The DNA extraction of the isolate was performed, and DNA was subjected to amplification and sequencing of the D1/D2 region of the large subunit rRNA gene. The sequences were aligned using Mega 7.0 and used for searching GenBank by BLASTn (Basic Local Alignment Search Tool for nucleotides), revealing 98% of identity with Cyberlindnera rhodanensis. To date, this is the first report of this yeast associated with clinical bovine mastitis.

Fibroma uterino em cadela / Uterine fibroma in dogs

Relatam-se dois casos de fibroma uterino em cadela. Caso 1: cadela Poodle, 15 anos de idade, pesando 3,8 kg, nulípara, apresentando abdômen distendido, anorexia e aquiesia há quatro dias. Aos exames radiográficos e ultrassonográficos visualizou-se neoformação uterina. Caso 2: cadela Poodle de 13 anos de idade, pesando 3,0 kg, nulípara, que à palpação abdominal apresentava uma massa consistente, circular, aparentemente localizada em útero. Ao exame ultrassonográfico da cavidade abdominal, visualizou-se conteúdo uterino e presença de estrutura circular hipoecogênica em útero. Diante dos quadros clínicos, procedeu- se ovariosalpingohisterectomia (OSH) de caráter emergencial em ambos os casos e as peças cirúrgicas foram enviadas para realização de exame histopatológico, que revelou como resultado fibroma. Os pacientes retornaram dez dias após o procedimento cirúrgico com a saúde restabelecida.

Two cases of uterine fibroma in dogs are reported. Case #1: Poodle bitch, 15 years-old, 3.8kg, nulliparous, presenting distended abdomen, anorexia and aquesia for four days. Radiographic and ultrasonographic examinations evidenced uterine neoformation. Case #2: Poodle Bitch, 13 years-old, 3.0 kg, nulliparous, abdominal palpation revealed a circular hard mass, apparently involving the uterus. Abdominal ultrassonography evidenced uterine content and the presence of a circular echogenic structure inside the uterus. Emergency ovariosalpingohisterectomy (OSH) was performed in both cases and the diagnosis of uterine fibroma was given by histological examination. Patients returned ten days after the surgical procedure with restored health.