Alexandre Cruz Dantas

Estudo retrospectivo de 66 casos de urolitíase obstrutiva em ovinos

The aim was to conduct a retrospective study of the main epidemiological, clinical, pathological and laboratory findings from sheep suffering from obstructive urolithiasis, in the Agreste region of Pernambuco, Brazil. Thus, 66 medical records of non-castrated male sheep with age from 2 months and 5 years were analyzed. Most cases (79.63%) occurred during the rainy season. Most sheep were raised intensively (87.88%) and all were fed with concentrated ration. Main clinical signs were manifestation of pain, congestion of the mucosae, hyperthermia, and increased abdominal tension associated with urinary tract obstruction. Half of the animals showed total obstruction of the urethra, 69.7% of which died, whilst in cases of partial obstruction only 30.3% died. Laboratorial exams revealed neutrophilia and regenerative left turn, hyperfibrinogenemia, and azotemia. Urinalysis showed hematuria in 89.29% of the cases, and acidic pH in 46.43%. Erythrocytes, leukocytes, cell desquamation of urethral epithelium, and crystals of amorphous urate predominated in the examination of the sediment. Most frequent gross findings were pyelonephritis (61.54% of cases) and hydronephrosis (50%). In the ureter, ureteritis and hydroureter was observed. The bladder showed diffuse hemorrhagic cystitis (50%) and uroliths (57.69%). In the urethra, uroliths (61.54%) and diffuse hemorrhagic urethritis (57.69%) was found. The uroliths were composed mainly by hydrated calcium oxalate. It is concluded that in the Agreste region of Pernambuco, urolithiasis is an important disease of sheep with high mortality, associated with the ingestion of large amounts of concentrates and mineral supplements.

Compressão medular em bovinos associada à vacinação contra febre aftosa

This paper reports the etiological, epidemiological, clinic, and pathological features of an outbreak of incoordination observed after vaccination against foot and mouth disease (FMD) in cattle in the states of Paraiba and Pernambuco. The signs of incoordination were observed approximately 45 days after vaccination that was applied in the toracic and lumbar region. A lump was found in the local of the vaccination.Twenty-four animals showed this signs, six in Paraiba and 18 in Pernambuco. Six animals died and four were euthanized. At necropsy exam were observed abscedative myositis with yellow irregular areas to multifocal coalescing a white liquid in the left muscle Longissimus lumborum (two animals) and yellowish firm mass compressing the spinal cord between vertebrae T11 and T12 (one animal) and L3 and L5 vertebrae (one animal). The myositis and the pyogranulomatous paquimeningitis were characterized by multifocal to coalescing areas showing clear spherical spaces of various sizes centrally located corresponding to the oil adjuvant of FMD vaccine removed by histologic processing. It has been determined the diagnosis of spinal cord compression secondary to vaccine granuloma.

Linfossarcoma em bovinos no Agreste Meridional de Pernambuco

The article reports epidemiological data, clinical signs, and laboratory and pathological findings in 24 cattle with enzootic bovine leukosis observed in the Clinic of Garanhuns, at the Federal Rural University of Pernambuco. The 24 cases represented 0.5% of 4,758 cattle examined from 2000 to 2010. The disease affected 22 (91.7%) females and two males. Twenty one of the animals were dairy (six Holstein, 13 girolando, one Brown Swiss and one Jersey), and three were for meat production (Nelore). Twenty three animals were 3-8 years of age and one was younger. All were raised in confinement or semi-confinement. All animals showed enlarged superficial lymph nodes. Other frequent clinical signs were hyporexia, decreased milk production, progressive weight loss, dehydration, hypomotility of the fore stomachs, and altered scant feces. Exophthalmia, dyspnea, and enlarged uterus were observed with less frequency. Leukocytosis (mean of 34,082 leukocytes/µL) with lymphocytosis (21,814 lymphocytes/µL) and neutrophilia (10,906lymphocytes/µL) was observed in the white blood count. Thirteen bovines were necropsied and 11 were slaughtered. Gross lesions were observed on the superficial lymph nodes of all animals necropsied. Six had lesions in the mesenteric lymph nodes, six in the gut, three in the abomasum, two in the uterus, one in the heart, one in the rumen, one in heart, and one in the liver. Due to the importance of enzootic bovine leukosis it is necessary for the farmers to introduce animals free of the disease and to establish a strict health policy for its control.

Análise dos fatores relacionados a 60 casos de distocia em ovelhas no Agreste e Sertão de Pernambuco

The aim of the present study was to report the main dystocia causes in sheep in Agreste and semiarid region of Pernambuco and to evaluate some factors related to their occurrence, besides of determining the efficiency of the treatment choices. The higher incidence of dystocia occurred in rainy season corresponding to 61.7%. Results showed a major predominance of maternal dystocia (71.6%) over fetal dystocia (29.4%) with higher incidence in primiparous and gemelar pregnant Santa Ines ewes. The main maternal dystocia was ringwomb while fetal dystocia was maldisposition in anterior presentation. Maternal survival rate correspond to 100% and 88.6%, while lambs achieved 41.2% and 46.7% after obstetrical maneuver and caesarean section, respectively, with predominance of unviable lambs in both procedures. Obstetrical maneuver and left flank cesarean section remain as safe options for the treatment of sheep dystocia and are also important coadjutants in minimizing the economical impact that this disease causes in Pernambuco.