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Research has demonstrated a compromised antioxidant capacity in broilers with pulmonary hypertension syndrome (PHS). Thus, the objective of the present study was to assess the effects of vitamin E on PHS-induced mortality, tissue antioxidants, and plasma lipid peroxides in male broilers. Control broilers were provided normal ventilation but others,(More)
Cardio-pulmonary function was measured in male broilers reared on diets formulated to contain 1.5% arginine (NORMAL group) or 2.5% arginine (ARGININE group). A snare placed around the right pulmonary artery permitted acute shunting of the entire cardiac output (CO) through the left pulmonary artery, resulting in sustained increases in blood flow (BF)(More)
Acutely tightening a snare around one pulmonary artery previously was shown to trigger a reversible ventilation-perfusion (V/Q) mismatch in broilers, as reflected by decreases in the partial pressure of oxygen in arterial blood (hypoxemia), accompanied by increases in the hydrogen ion concentration (acidosis) and partial pressure of carbon dioxide(More)
The purpose of this study was to assess mitochondrial function and glutathione (a mitochondrial antioxidant) in response to oxidative stress in mitochondria in vitro obtained from broilers with and without pulmonary hypertension syndrome (PHS). Liver mitochondria from Control and PHS broilers were incubated with 0, 1, and 5-mM tertiary-butyl hydroperoxide(More)
From 10 +/- 3.5 d after parturition to 149 +/- 3.5 d of lactation, 146 cows (109 Holstein and 37 Ayrshires) were fed either a 15 or 20% crude protein diet of 45% sorghum silage and 55% concentrate. Milk production was enhanced by the 20% protein diet, but percentage of milk fat and protein were unchanged. Average daily intake of DM was unaffected by diet.(More)
Experiments were conducted to evaluate the pulmonary vascular responses of lightly anesthetized clinically healthy male broilers during acute metabolic acidosis induced by bolus i.v. injections or constant i.v. infusions of HCl. In Experiment 1, broilers received consecutive 1.5 mL i.v. bolus injections of 2.5% mannitol (volume control) and 0.4 N, 0.8 N,(More)
Experiment 1 compared the development of 2- to 4-cell bovine embryos cultured in synthetic oviductal fluid with 20% fetal calf serum or 3.2% BSA and in the presence of oviductal cells, cumulus cells, or medium alone. More embryos developed in medium with serum, regardless of culture method (P=0.063). Oviductal cell co-culture resulted in more embryos(More)
This study surveyed nutrition education materials which are low in cost, brief and the type most used in patient education to determine which might be useful with low literacy clients. Readability of 209 pamphlets from professional health organizations, commercial organizations, government agencies, and educational institutions was assessed using three(More)
Syndromes such as ascites (pulmonary hypertension syndrome) present difficulties both in the interpretation of associated physiological observations and in their analyses. The ability to predict which physiological variables have the greatest influence on survival or, more importantly, which individuals are most susceptible or resistant to ascites would be(More)