Search Results - "Hahn, G.L."

Livestock production system management responses to thermal challenges by Nienaber, J.A, Hahn, G.L

“…The adaptive capabilities of animals and livestock production systems have been emphasized in this report. Biometeorology has a key role in rational management…”
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Thermoregulatory responses of feeder cattle by Brown-Brandl, T.M, Nienaber, J.A, Eigenberg, R.A, Hahn, G.L, Freetly, H

“…A study was designed to investigate the thermoregulatory responses of feeder cattle to both acute and chronic exposures to elevated environmental temperatures…”
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Dynamic responses of cattle to thermal heat loads by Hahn, G.L

“…The focal point of this limited review is bioenergetic research conducted in the Biological Engineering Research Unit at the U.S. Meat Animal Research Center…”
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Comparison of calf housing types and tympanic temperature rhythms in Holstein calves by Macaulay, A S, Hahn, G L, Clark, D H, Sisson, D V

“…During fall, 30 Holstein calves were randomly assigned to three housing treatments from birth to weaning: conventional wooden hutches, enclosed molded…”
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Dynamic Response Indicators of Heat Stress in Shaded and Non-shaded Feedlot Cattle, Part 1: Analyses of Indicators by Brown-Brandl, T.M., Eigenberg, R.A., Nienaber, J.A., Hahn, G.L.

“…Heat stress in feedlot cattle can cause decreases in feed intake and growth, and in extreme cases may result in death. Providing shade during hot weather has…”
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Dynamic Response Indicators of Heat Stress in Shaded and Non-shaded Feedlot Cattle, Part 2: Predictive Relationships by Eigenberg, R.A., Brown-Brandl, T.M., Nienaber, J.A., Hahn, G.L.

“…Summer heat provides stressful conditions for Bos taurus feeder cattle; in extreme instances these conditions can be fatal. One management option is to provide…”
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Adrenal and behavioral responses of swine restricted to varying degrees of mobility by Becker, B A, Christenson, R K, Ford, J J, Nienaber, J A, DeShazer, J A, Hahn, G L

“…Adrenal and behavioral responses in swine restricted to varying degrees of mobility were examined to determine what component may impose chronic stress. The…”
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Dynamic response indicators of heat stress in shaded and non-shaded feedlot cattle. 2. Predictive relationships by Eigenberg, R.A, Brown-Brandl, T.M, Nienaber, J.A, Hahn, G.L

“…Summer heat provides stressful conditions for Bos taurus feeder cattle; in extreme instances these conditions can be fatal. One management option is to provide…”
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Dynamic response indicators of heat stress in shaded and non-shaded feedlot cattle. 1. Analyses of indicators by Brown-Brandl, T.M, Eigenberg, R.A, Nienaber, J.A, Hahn, G.L

“…Heat stress in feedlot cattle can cause decreases in feed intake and growth, and in extreme cases may result in death. Providing shade during hot weather has…”
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Analyses of thermoregulatory responses of feeder cattle exposed to simulated heat waves by Brown-Brandl, T.M, Eigenberg, R.A, Hahn, G.L, Nienaber, J.A, Mader, T.L, Spiers, D.E, Parkhurst, A.M

“…Heat stress in feedlot cattle causes reduced performance, and in the most severe cases, death of the animals, thus causing the loss of millions of dollars in…”
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Effects of high and low environmental temperatures on clinical course of fowl cholera in turkeys [Pasteurella multocida] by Simensen, E, Olson, L.D, Hahn, G.L

“…Turkeys inoculated with Pasteurella multocida either in the palatine air spaces or via drinking water were maintained at high (33.4-37.4 C), low (2.6-5.3 C),…”
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Thermoregulatory response of feeder cattle by Brown-Brandl, T.M, Nienaber, J.A, Eigenberg, R.A, Hahn, G.L, Freetly, H

“…A study was designed to investigate the thermoregulatory responses of feeder cattle to both acute and chronic exposures to elevated environmental temperatures…”
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Quantifying livestock responses for heat stress management: a review by Nienaber, J.A, Hahn, G.L, Eigenberg, R.A

“…Hot weather challenges livestock production but technology exists to offset the challenge if producers have made appropriate strategic decisions. Key issues…”
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Calculation of fractal dimension from cattle thermoregulatory responses by Korthals, R.L, Chen, Y.R, Hahn, G.L, Eigenberg, R.A

“…Fractal dimension analyses have previously been shown to objectively classify thermoregulatory responses of cattle to non-stressing and stressing thermal…”
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Plasma adrenocorticotropic hormone and cortisol in pigs: effects of time of day on basal and stressor-altered concentrations by Klemcke, H G, Nienaber, J A, Hahn, G L

“…An initial study was conducted to establish the presence in plasma of diurnal rhythms of immunoreactive porcine adrenocorticotropic hormone (pACTH) and…”
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Cold tolerance and mortality of Bos indicus vs Bos taurus calves by Josey M.J, Cundiff L.V, Koch R.M, Gregory K.E, Hahn G.L

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Effect of fasting and transportation on various physiological parameters and meat quality of slaughter hogs by Becker, B.A. (USDA-ARS, Animal Physiol. Unit, Columbia, MO), Mayes, H.F, Hahn, G.L, Nienaber, J.A, Jesse, G.W, Anderson, M.E, Heymann, H, Hedrick, H.B

“…Forty-nine slaughter hogs were transported and fasted or fasted with no transport for 0 (no transport), 24, 48 and 72 h. Blood samples were taken before…”
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Housing and management to reduce climatic impacts on livestock [USA] by Hahn, G. LeRoy

“…Weather is a constraint on efficient livestock production systems. Evaluation of the degree of constraint is a difficult, but necessary task before selection…”
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Peripheral concentrations of cortisol as an indicator of stress in the pig by Becker, B A, Nienaber, J A, Christenson, R K, Manak, R C, DeShazer, J A, Hahn, G L

“…Twenty-four crossbred gilts (7 to 9 months old) were exposed to 3 different stressors to evaluate changes in peripheral concentrations of the adrenal hormone…”
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Rational environmental planning for efficient livestock production by Hahn, G.L

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