Search PubMed⌕ Search

Biomedical subjects

B L Hull

Publications and source records attributed to B L Hull.

53 records · Page 3Linked to original sources
PubMed1985

Radial agenesis and ulnar hypoplasia in two caprine kids.

Two of three caprine triplets caused dystocia due to malformed forelimbs. This malformity was caused by radial agenesis and ulnar hypoplasia. Other congenital anomalies were also present. The influence of diet versus genetics could not be ascertained. Bilateral ulnar fractures in one kid revealed histologically rounded fracture ends with prominent periosteal new bone formation.

Abnormalities, Multiple↗
PubMed1984

Abomasal emptying defect in Suffolk sheep.

Twelve Suffolk sheep were examined because of an abomasal emptying problem. Anorexia and weight loss were evident in 11 of the sheep. Ventral abdominal distention was observed in 5 sheep. Laboratory analyses failed to show the hypochloremic, hypokalemic metabolic alkalosis commonly found in cattle with a similar problem. Rumen chloride concentrations in 3 sheep indicated reflux of abomasal contents into the rumen.

Abomasum↗
PubMed1984

Thermodilution curves for diagnosis of ventricular septal defect in cattle.

An indicator dilution method developed for detection of intracardiac shunts and determination of cardiac output in man and domestic animals was evaluated in 4 calves and 1 cow with holosystolic cardiac murmurs. Thermodilution curves recorded from the pulmonary artery and the right ventricle confirmed a left-to-right intracardiac shunt and provided a means for its quantitation. Ventricular septal defect was confirmed in 2 cows, which were euthanatized. The data obtained by thermodilution were evaluated along with information obtained from other diagnostic procedures (auscultation, oximetry, echocardiography, measurement of intravascular pressures). It was concluded that the procedure is a simple and accurate method for diagnosis of ventricular septal defect in cattle.

Animals↗
PubMed1982

Osteochondrosis, degenerative joint disease, and vertebral osteophytosis in middle-aged bulls.

Twenty-five middle-age (65 +/- 18 months) dairy bulls sent to slaughter for nonmedical reasons were evaluated for joint disease in the stifle and the lumbar vertebrae. Fourteen bulls had degenerative joint disease and 3 had osteochondrosis (osteochondritis dissecans) of the distal end of the femur. These lesions predominantly involved the lateral trochlear ridge. Twenty-one bulls had vertebral osteophytosis. Degenerative joint disease and vertebral osteophytosis were common in these middle-aged bulls and, even when severe, were rarely associated with lameness.

Age Factors↗
PubMed1981

Paramphistomum microbothrioides in American bison and domestic beef cattle.

Intestinal paramphistomiosis was diagnosed in a bull and cow with severe diarrhea and weight loss, and subsequent investigation suggested that the infection was transmitted from American bison (Bison bison). The rumen fluke, Paramphistomum microbothrioides, was recovered from the rumen of 3 bison on the farm or origin. Single operculate eggs of P microbothrioides measuring 130 x 69 micrometers were recovered from the feces of the bull, from 9 of 10 bison, and from 3 of 9 other beef cattle. Snails of the genera Physa and Helisoma were collected at the farm of origin. Ostertagiosis and paratuberculosis were considered in the differential diagnosis but were ruled out on the basis of fecal, plasma, and mucosal tests. In view of the lack of approved drugs for treatment of paramphistomes in the United States, treatment was attempted with an 8 times normal dose of thiabendazole (528 mg/kg). Advice was given on grazing management strategies designed to reduce exposure of susceptible cattle to metacercariae, and the owner was advised to drain a large snail habitat.

Animals↗
PubMed1978

Echocardiographic diagnosis of endocarditis in a bull.

A 2-year-old Charolais bull was examined because of lameness that developed after infection of a tail laceration. A systolic murmur was auscultated during the routine physical examination. A diagnosis of endocarditis and polyarthritis secondary to septicemia from the tail lesion was made. The diagnosis was supported by echocardiography and blood cultures, which yielded Corynebacterium pyogenes. The clinical diagnosis was confirmed at necropsy.

Animals↗
PubMedDate not supplied

Synovial fluid analysis in cattle: a review of 130 cases.

OBJECTIVE: To compare synovial fluid characteristics of cattle with infectious and noninfectious arthritis. STUDY DESIGN: Retrospective cohort study. ANIMAL OR SAMPLE POPULATION: 130 cattle. METHODS: Synovial fluid was analyzed for total nucleated cell count (NCC), absolute number and percentages of polymorphonuclear (PMN) and mononuclear cells, total protein (TP) concentration, and specific gravity. Cattle were categorized as having infectious or noninfectious arthritis based on physical and lameness examinations, joint radiographs, and microbial culture results. Kruskal-Wallis 1-way analysis of variance was used to compare synovial fluid analysis data from different categories. Selection of cut-off values for the calculation of likelihood ratios, sensitivity, specificity, and positive and negative predictive values was based on examination of the distribution of the data using histograms. RESULTS: Cattle with infectious arthritis had significantly higher numbers of total NNC, PMN cells, TP concentration, and specific gravity (P = .0001) and a significantly higher percentage of PMN cells compared with cattle with noninfectious arthritis (P = .0001). The percentage of mononuclear cells was significantly higher in cattle with noninfectious arthritis (P = .0001). CONCLUSIONS: Synovial fluid analysis is useful for differentiation of infectious and noninfectious causes of joint disease in cattle. CLINICAL RELEVANCE: Cattle with a synovial fluid total NCC > 25,000 cells/microL, a PMN cell count > 20,000 cells/microL or more than 80% PMN cells, and TP > 4.5 g/dL should be considered to have infectious arthritis.

Animals↗
PubMedDate not supplied

Comparison of naturally occurring proximal duodenal obstruction and abomasal volvulus in dairy cattle.

Physical and clinicopathologic findings from six cows with proximal duodenal obstruction (PDO) and 58 cows with abomasal volvulus (AV) were compared retrospectively. Many of the physical signs were similar in cows with PDO and cows with AV, but the two conditions differed in the type of abdominal distention, and in the findings from rectal examination and abdominal auscultation. Cows with PDO had significantly lower mean values for serum sodium (Na+) and chloride ion (Cl-), and higher mean values for plasma bicarbonate [HCO3-], base excess, carbon dioxide pressure (pCO2), serum phosphate, urea nitrogen, and total protein than AV affected cattle. Cows with PDO showed hyperglycemia (range, 263-990 mg/dl; mean, 618 mg/dl) of unexplained etiology that was significantly higher than blood-glucose concentrations in AV cows (mean, 178 mg/dl). Although all AV cows with anion gap values greater than 32 mEq/l died;PDO cows with equally elevated anion gap survived. The anion gap elevations in PDO and AV cows resulted from accumulation of different anions. Although the site of obstruction of aborad flow of ingesta is similar in both disease conditions, the differences in physical and clinicopathologic findings appear to reflect differences in the degree of reticulo-omasal orifice obstruction and the degree of abomasal vascular compromise.

Abomasum↗
PubMedDate not supplied

Urethral extension for correction of urovagina in cattle. A review of 14 cases.

Urethral extension was performed in 14 cows with clinical urovagina and infertility. Urovagina was corrected in nine cows (64%) and was reduced in the others. Formation of fistulas at the cranial end of the extension site was the most frequent complication (4 cows). In one cow, the urethral extension was not extended far enough caudally. Eleven cows (79%) returned to fertility after surgery. Severity of urine pooling, cranial displacement of the urethral orifice, and severe preoperative vaginitis may explain the failure of the urethral extension in some cows.

Animals↗
PubMedDate not supplied

Excision of neoplasms of the bovine lower eyelid by H-blepharoplasty.

Neoplasms of the lower eyelid in 14 cattle were treated by wide surgical excision and H-blepharoplasty. Healing was by first intention, and cosmetic results were satisfactory in all cases. Lid function was satisfactory in 12 cattle, and there was no evidence of recurrence after at least 6 months in 12 cattle. This therapy can be recommended for large infiltrative masses on the lower lid if there is no evidence of bony involvement, metastasis, or involvement of both puncta at the medial canthus.

Animals↗