Evaluation in Appalachian pasture systems of the 1996 (update 2000) National Research Council model for weaning cattle1,2

Whetsell, M. S.; Rayburn, Edward B.; Osborne, Phillip Irvin

doi:10.2527/2006.8451265x

Cited by 4 publications

(4 citation statements)

References 15 publications

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“…The standard deviation of 23 grams in the estimation of ADG is smaller than that reported in NRC (1985) and CNCPS-S (NRC, 2007) models from 54 and 57 g respectively; a larger value reflects the variability of gain according to dietary and environmental differences (Whetsell et al, 2006).…”

Section: Resultsmentioning

confidence: 92%

“…The residual value was estimated, expressed as residual average daily gain (ADGres), calculated from the predicted daily gain (ADGpred) minus the observed daily gain (ADGobs) (Whetsell et al, 2006). The mean (M), standard deviation (SD) and coefficient of variation (CV) of ADGpred, ADGobs, and ADGres were estimated with the UNIVARIATE procedure of SAS (2007).…”

Section: Evaluation Of the Modelmentioning

confidence: 99%

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A simulation model to predict body weight gain in lambs fed high-grain diets

Osorio

Mendoza

Plata

et al. 2015

Small Ruminant Research

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Section: Resultsmentioning

confidence: 92%

Section: Evaluation Of the Modelmentioning

confidence: 99%

A simulation model to predict body weight gain in lambs fed high-grain diets

Osorio

Mendoza

Plata

et al. 2015

Small Ruminant Research

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“…We found few instances where nutritive value indices dropped below acceptable nutritional thresholds for low-maintenance animals like dry cows. For example, herbage intake generally is limited when CP concentrations are less than 60–80 g kg -1 DM [23, 24], and mean CP concentrations did not reach these levels. Although many studies have examined the relationship between stocking methods and forage nutritive value, few have concluded that manipulation of rest period or grazing intensity alone can explain variation in the nutritive value of forage across time [25].…”

Section: Discussionmentioning

confidence: 99%

“…In our study, late fall grazing effectively reduced herbage mass to approximately 1200 kg ha -1 most years. This level of forage biomass was almost low enough to limit intake by cattle [23] and should have provided ample space for clover species to emerge and grow in early spring. Coincidentally, the highest clover abundance we recorded occurred in May 2016 when precipitation greatly exceeded the long-term mean.…”

Section: Discussionmentioning

confidence: 99%

Evaluating mob stocking for beef cattle in a temperate grassland

Tracy

Bauer

2019

PLoS ONE

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Mob stocking is a type of livestock management method where high densities of animals are restricted to a small area of grassland for short periods of time (e.g., 12–24 hr.) before being moved to new forage. Use of mob stocking has generated considerable interest among forage-livestock professionals in recent years, but questions remain about its purported benefits to cattle and forage plants. To address questions about the possible benefits of mob stocking, a 3-yr study (2014–2016) was conducted in Virginia, USA comparing mob, rotational, and continuous stocking methods in a temperate grassland common to that region. The main objective of this study was to evaluate how mob-stocking management affected selected forage variables, cattle performance, and legume/weed abundance. Herbage mass and nutritive value were measured monthly. Cow and calf weights and body condition score (BCS) were used as indicators of animal performance. Legumes (red and white clover) were over-seeded prior to the study, and their abundance along with weeds were evaluated annually thereafter. Mean herbage mass and forage nutritive values were similar across mob, rotational and continuously stocked systems despite extra-long rest periods that allowed grasses to grow tall and over-mature under mob stocking. Cow weights going into winter were lower (P < 0.05) under mob stocking (619 kg) compared with continuous stocking (688 kg) possibly because many tall grasses were trampled and not grazed. Lastly, we found mob stocking can favor establishment of erect-growing red clover (Trifolium pretense L.), but it had no effect on weed abundance. Overall, we found few compelling reasons why mob stocking should be adopted for season-long forage and livestock production over other stocking methods in this environment.

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