Journal of Animal Science
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- Nephrology, Aaas, Ama, CSA, Highwire, Csh, Rupress, Gale, Aacr, Endocrine, and Proquest
Estimating the comparative clinical and economic consequences of tulathromycin for treatment of present or anticipated outbreaks of bovine r...
The goal of this study was to determine the clinical and economic impact of using tulathromycin as first line treatment for bovine respiratory disease (BRD) compared with other commonly used antimicrobials. Two decision trees were developed simulating the consequences of treating cattle at high risk...
Dietary plant extracts improve immune responses and growth efficiency of pigs experimentally infected with porcine reproductive and respirat...
A study was conducted to evaluate the effects of 3 different plant extracts on growth performance and immune responses of weaned pigs experimentally infected with porcine reproductive and respiratory syndrome virus (PRRSV). A total of 64 weaned pigs (7.8 ± 0.3 kg BW), free of PRRSV, were randomly al...
Influence of level of dried distillers grains with solubles on feedlot performance, carcass characteristics, serum testosterone concentratio...
The objective of this study was to evaluate the effects of dried distillers grains with solubles (DDGS) on ram lamb feedlot performance, carcass characteristics, serum testosterone concentration, and semen quality. One hundred twenty ram lambs (40.4 ± 9.1 kg; Suffolk × western white face) were used...
Heat stress and reduced plane of nutrition decreases intestinal integrity and function in pigs.
We hypothesized that an increased heat-load causes physiological alterations to the intestinal epithelium, resulting in compromised barrier integrity and altered intestinal function that contributes to the overall severity of HS-related illness. Crossbred gilts (n = 48, 43 ± 4 kg BW) were housed in...
Effects of increasing levels of corn dried distillers grains with solubles and monensin on intake, digestion, and ruminal fermentation in be...
These results suggest that feeding monensin at 48 vs. 28 mg/kg diet DM altered nutrient availability and site of feed digestion, likely as a result of reduced DMI and increased ruminal digestion of DM. High levels of monensin may reduce the risk of acidosis through a reduction in DMI, but in the pre...
Effects of flunixin meglumine administration on physiological and performance responses of transported feeder cattle.
The objective was to evaluate the effects of flunixin meglumine administration on physiological and performance responses of transported cattle during feedlot receiving. Forty-five Angus × Hereford steers were ranked by BW on d 0 and assigned to 1 of 3 treatments: 1) transport for 1,280 km in a comm...
The effect of a split feeding regimen and breed on body temperature of hair sheep ewes in the tropics.
Lactating St. Croix White and Dorper × St. Croix White ewes were used to evaluate the effect of breed and feeding a split ration on body temperature during the cool (March-April) and warm (July-August) seasons in the U.S. Virgin Islands. Within each season ewes were assigned to treatments (n = 8/tre...
A simulation-based approach for evaluating and comparing the environmental footprints of beef production systems.
A methodology was developed and used to determine environmental footprints of beef cattle produced at the U.S. Meat Animal Research Center (MARC) in Clay Center, NE, with the goal of quantifying improvements achieved over the past 40 yr. Information for MARC operations was gathered and used to estab...
Genetic parameters for male fertility and its relationship to skatole and androstenone in Danish Landrace boars.
Concerns have been raised regarding selection against the boar taint compounds, androstenone and skatole, due to potential unfavorable genetic correlations with important male fertility traits (i.e., selection of boars with low levels of these boar taint compounds might also reduce male fertility)....
Effect of mannan oligosaccharides (Bio-Mos) and outdoor access housing on pig growth, feed efficiency and carcass composition.
The present study was conducted as a 3 × 2 factorial experiment in 7 pen replications conducted using progeny (n = 360) of successive farrowings of 1 Landrace breeding female population. Grower-finisher dietary treatments included the addition of Bio-Mos (BM; at 0.2, 0.1 and 0.05% inclusion rates fo...