Search Results - "Combs, D K"

Intake and milk production of cows fed diets that differed in dietary neutral detergent fiber and neutral detergent fiber digestibility by Kendall, C, Leonardi, C, Hoffman, P C, Combs, D K

“…The objectives of this study were to determine how feeding diets that differed in dietary neutral detergent fiber (NDF) concentration and in vitro NDF…”
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An alternative method to assess 24-h ruminal in vitro neutral detergent fiber digestibility by Goeser, J P, Combs, D K

“…Interassay error caused by the inconsistent nature of rumen fluid inoculum confounds comparisons of forage in vitro neutral detergent fiber (NDF) digestibility…”
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Effects of forage particle size, forage source, and grain fermentability on performance and ruminal pH in midlactation cows by Krause, K M, Combs, D K

“…Our study investigated the effects of, and interactions between, forage particle size, level of dietary ruminally fermentable carbohydrate (RFC), and level of…”
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Effects of forage particle size and grain fermentability in midlactation cows. II. Ruminal pH and chewing activity by Krause, K M, Combs, D K, Beauchemin, K A

“…Our study investigated the effects of, and interactions between, level of dietary ruminally fermentable carbohydrate (RFC) and forage particle size on rumen pH…”
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Effects of forage particle size and grain fermentability in midlactation cows. I. Milk production and diet digestibility by Krause, K M, Combs, D K, Beauchemin, K A

“…Our study investigated the effects of, and interactions between, level of dietary ruminally fermentable carbohydrate (RFC) and forage particle size on milk…”
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Evaluation of potential carryover effects associated with limit feeding of gravid Holstein heifers by Kruse, K A, Combs, D K, Esser, N M, Coblentz, W K, Hoffman, P C

“…Ninety-six Holstein heifers (400±6kg, 15.2±0.1 mo), including 9 with ruminal cannulas, were offered 1 of 3 diets for 180±8 d in a randomized replicated pen…”
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Modification of a rumen fluid priming technique for measuring in vitro neutral detergent fiber digestibility by Goeser, J P, Hoffman, P C, Combs, D K

“…Recently, we developed an alternate method to measure in vitro neutral detergent fiber (NDF) digestibility (ivNDFD) based on a primed rumen fluid inoculum…”
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Validation of an approach to predict total-tract fiber digestibility using a standardized in vitro technique for different diets fed to high-producing dairy cows by Lopes, F, Ruh, K, Combs, D K

“…The experimental objective was to validate an in vitro model to predict total-tract neutral detergent fiber (NDF) digestibility in dairy cattle. Twenty-one…”
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Comparison of in situ versus in vitro methods of fiber digestion at 120 and 288 hours to quantify the indigestible neutral detergent fiber fraction of corn silage samples by Bender, R W, Cook, D E, Combs, D K

“…Ruminal digestion of neutral detergent fiber (NDF) is affected in part by the proportion of NDF that is indigestible (iNDF), and the rate at which the…”
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Effects of increasing levels of grain supplementation on rumen environment and lactation performance of dairy cows grazing grass-legume pasture by Reis, R B, Combs, D K

“…The impact of supplemental energy on nutrient utilization, fiber digestion, rumen fermentation, and lactation performance was evaluated in dairy cows grazing…”
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Alfalfa containing the glyphosate-tolerant trait has no effect on feed intake, milk composition, or milk production of dairy cattle by Combs, D K, Hartnell, G F

“…The objective of this experiment was to assess if feeding glyphosate-tolerant alfalfa affects feed intake, milk composition, or milk production of dairy cows…”
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Randomized clinical trial to assess the effect of antibiotic therapy on health and growth of preweaned dairy calves diagnosed with respiratory disease using respiratory scoring and lung ultrasound by Binversie, E S, Ruegg, P L, Combs, D K, Ollivett, T L

“…The primary objective of this randomized field study was to assess the effect of antibiotic therapy on health and growth of preweaned dairy calves diagnosed…”
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Utilization of kura clover-reed canarygrass silage versus alfalfa silage by lactating dairy cows by Kammes, K L, Heemink, G B H, Albrecht, K A, Combs, D K

“…The mixture of kura clover (Trifolium ambiguum M. Bieb.) and reed canarygrass (Phalaris arundinacea L.) has proven to be extremely persistent in the northern…”
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Effects of increasing levels of refined cornstarch in the diet of lactating dairy cows on performance and ruminal pH by Krause, K M, Combs, D K, Beauchemin, K A

“…Our study investigated the effect of a linear increase in level of ruminally fermentable carbohydrate, at a constant level of dietary starch and fiber, on…”
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Technical note: Comparison of dry matter measurements from handheld near-infrared units with oven drying at 60°C for 48 hours and other on-farm methods by Donnelly, D M, Dórea, J R R, Yang, H, Combs, D K

“…This study compared dry matter (DM) predictions of 3 handheld near-infrared spectrophotometer (NIRS) units (Moisture Tracker, Digi-Star Inc., Fort Atkinson,…”
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Effects of supplementation and stage of lactation on performance of grazing dairy ewes by Mikolayunas, C M, Thomas, D L, Albrecht, K A, Combs, D K, Berger, Y M, Eckerman, S R

“…The majority of dairy sheep in the world are fed pasture and supplemental grain during lactation; however, no trials have reported the effects of…”
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Effects of varying dietary ratios of corn silage to alfalfa silage on digestion of neutral detergent fiber in lactating dairy cows by Lopes, F, Cook, D E, Combs, D K

“…An in vivo study was performed to test an in vitro procedure and model that predicts total-tract neutral detergent fiber (NDF) digestibility for lactating…”
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Validation of an in vitro model for predicting rumen and total-tract fiber digestibility in dairy cows fed corn silages with different in vitro neutral detergent fiber digestibilities at 2 levels of dry matter intake by Lopes, F, Cook, D E, Combs, D K

“…An in vivo study was performed to validate an in vitro procedure that predicts rate of fiber digestion and total-tract neutral detergent fiber digestibility…”
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Effects of partial replacement of corn and alfalfa silage with tall fescue hay on total-tract digestibility and lactation performance in dairy cows by Bender, R W, Lopes, F, Cook, D E, Combs, D K

“…Our objective was to evaluate the effects of replacing either corn or alfalfa silage with tall fescue hay on total-tract neutral detergent fiber (NDF)…”
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Long-term effects of acetate and propionate on voluntary feed intake by midlactation cows by Sheperd, A C, Combs, D K

“…Our objective was to separate the effects of physical fill and acetate production in the regulation of voluntary feed intake. Eight ruminally fistulated…”
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