Tiffany Avery

Learn More
Eight bull calves (four Holsteins and four Ayrshire calves with mean birth weight of 38.8 kg) were ruminally cannulated at 3 d of age and allocated to one of two weaning programs. All calves were fed colostrum for 3 d after birth and milk until weaning. Calves in the conventional-weaning program were fed a starter diet from 3 d of age and weaned at 6 wk of(More)
Eight Holstein steers (four at 300 kg, four at 406 kg) fitted with an elevated carotid artery, hepatic portal and mesenteric venous catheters, and abomasal and ileal cannulas were used in several 4 x 4 Latin square experiments to evaluate small intestinal starch digestion. They were fed alfalfa hay at 1.5% of BW and abomasally infused with water or glucose,(More)
Two experiments were conducted to determine how varying the proportion of wheat (W) and high-moisture sorghum grain (SG) in 80% grain dies would affect ruminal fermentation, liquid and solid flow, site and extent of digestion (Exp. 1) and feeding performance of cattle (Exp. 2). In Exp. 1, three ruminal, duodenal and ileal cannulated steers (average weight(More)
The etiologic role of Clostridum perfringens type A in the acute abdominal syndrome characterized by abomasal and rumen tympany, abomasitis, and abomasal ulceration was investigated in neonatal calves. Eight calves, 4 to 12 days old, were inoculated intraruminally with toxigenic C perfringens type A. Before and after C perfringens inoculation, blood samples(More)
Salinomycin, a new ionophore antibiotic, was tested and compared with lasalocid and monensin for preventing experimentally induced lactic acidosis. Five rumen-fistulated adult cattle were used in a 5 X 5 Latin square design, and the treatments were as follows: no treatment (control), 0.11 mg of salinomycin/kg of body weight (S1), 0.22 mg of salinomycin/kg(More)
An experiment was performed using lambs fitted with chronic indwelling catheters in appropriate blood vessels for portal-drained visceral (PDV) flux measurements. The objective of the experiment was to evaluate PDV nutrient flux in alfalfa-fed and intragastrically infused lambs and to evaluate the effects of amount of energy and N infused on PDV nutrient(More)
1. Serum potassium concentration [K+] was measured pre- and postadrenalectomy in three Hereford steer calves before, during and following 3.5 min exercise at their maximal speed capability. 2. Both before and after adrenalectomy, serum [K+] increased an average of 2.4 mEq.1(-1) during exercise and was at control levels 10 min postexercise. 3. Hormones from(More)
Lasalocid, monensin or thiopeptin was administered intraruminally each at .33, .65 or 1.3 mg/kg body weight and evaluated for its effectiveness in preventing experimentally induced lactic acidosis in cattle. Four rumen-fistulated cattle were used for each dosage level and the design was a 4 x 4 Latin square with each animal receiving lasalocid, monensin,(More)
Intraruminal administration of lasalocid or monensin (1.3 mg/kg body weight) effectively prevented in glucose- or corn-induced lactic acidosis in cattle. Administering the antibiotics for 7 days before experimentally inducing acidosis with corn (27.5 g/kg body weight), effectively prevented acidosis, while 2 days' were sufficient to prevent glucose-induced(More)
The use of erythropoiesis stimulating agents (ESAs) to treat anemia in breast cancer patients who are treated with chemotherapy is a matter of ongoing debate. Several recent randomized trials challenged conventional wisdom, which holds that ESAs are contraindicated for breast cancer patients undergoing curative treatment. We aimed to perform the first large(More)