Brent A. Becker

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Several experiments were conducted to evaluate serum cortisol concentrations and the circadian rhythm of this hormone in gilts tethered in stalls. Control animals were penned individually. In the initial experiment, 18 nongravid gilts were placed in tether stalls after being in either tether stalls or individual pens for 2 wk. No significant differences(More)
Cardiac arrest in the adolescent population secondary to congenital heart disease (CHD) is rare. Focused cardiac ultrasound (FoCUS) in the emergency department (ED) can yield important clinical information, aid in resuscitative efforts during cardiac arrest and is commonly integrated into the evaluation of patients with pulseless electrical activity (PEA).(More)
Purpose: To evaluate the reported benefits of segregated early weaning (SEW) as determined by performance, by immunologic status as indicated by T-lymphocyte differentiation antigens, and by health status. Methods: Experiment I was conducted at a commercial herd with pigs weaned at 11–18 days of age and blocked by age to include 11– to 14-day-old pigs and(More)
Adrenal and behavioral responses in swine restricted to varying degrees of mobility were examined to determine what component may impose chronic stress. The components of restriction considered were the inability to turn around and/or move freely. For 5 to 6 weeks 32 pigs were restrained such that pigs A) could move freely; B) could not turn around or move(More)
Three experiments were conducted to determine whether housing in tether stalls, gestation stalls or individual pens imposes a stress upon gilts and sows. Changes in serum cortisol concentrations were used as the indicator for stress. In the first experiment, gilts were placed in tether stalls and individual pens to determine cortisol concentrations after(More)
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