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Showing 1 to 20 of 174 for “"DMI"”.
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Evaluation of intake and feed efficiency measures in beef cattle
… (RG), residual intake and BW gain (RIG), and DMI. The objective of these experiments was to determine the relationship between post-weaning feed efficiency and intake in heifers, and subsequent cow performance, reproduction, and longevity as 2-and 5-yr-old cows. As heifer RFI improved, cow …
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Intake capacity of the Icelandic dairy cow. Effect of animal factors, concentrate ratio and feeding method
Accurate prediction of dry matter intake (DMI) is crucial to formulate a feed ration that maximizes feed efficiency. The model predicting the DMI of the Icelandic dairy cow in the co-Nordic feed evaluation system NorFor needed an update to be able to predict the DMI more accurately. The aims of …
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Dry matter intake prediction of Holstein heifers
… observations of individual dry matter intake (DMI) were used to develop an equation to predict DMI. Data were contributed by Pennsylvania State University, University of New Hampshire, Purina Mills, Kansas State University, University of Minnesota, and Virginia Tech. Objectives varied by …
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The Relationship between Residual Feed Intake, Dry Matter Intake, and Reproductive Performance in Holstein Dairy Cows
… consumed, measured here as dry matter intake (DMI), would therefore be advantageous to producers. However, this decrease could result in cows that do not supply the necessary energy to maintain high production, growth, and reproduction. Measures of feed efficiency try to capture important …
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Verification of equations to predict dry matter intake of dairy heifers
… to accurately predict dry matter intake (DMI). Heifers ranging from 120 to 430 kg body weight, were randomly assigned to treatments with forage bases of 1) 100% corn silage, 2) 75% corn silage : 25% alfalfa haylage, 3) 50 % corn silage : 50% alfalfa haylage, or 4) 25% corn silage : 75% …
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Factors influencing cow performance and intake
… < 0.05) BW (18.7 kg), BCS (0.29) and decreased DMI (1.23 kg). At 240 d postpartum cows that had been early-weaned had an increased (P < 0.05) BW (30.5 kg), BCS (0.31), and BF (0.22 cm). There were no differences (P > 0.05) in DMI or overall pregnancy rate. Early weaning can improve cow condition …
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The role of energy balance in productivity, health, and fertility of first lactation Holsteins, Jerseys, and their reciprocal crosses
… first). Collection of daily dry matter intakes (DMI) began in the fall of 2005 and continued through spring of 2008. DMI were measured for two weeks out of every six week period in first lactation on 44, 32, 29, and 13 HH, HJ, JH, and JJ cows. Daily milk and body weights and monthly milk …
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RESIDUAL FEED INTAKE AND THE RELATIONSHIP WITH PERFORMANCE, TEMPERAMENT AND CARCASS TRAITS IN GROWING AND FINISHING STEERS
… weighed at 14-d intervals and dry matter intake (DMI) measured for 70 d during both phases. Residual feed intake (RFI) is the difference between actual DMI and DMI predicted from linear regression of DMI on mid-test metabolic body weight. Ultrasound carcass measurements were measured on day 0 and …
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Application of Fecal Near Infrared Reflectance Spectroscopy and N-Alkane Labeled Supplementation Techniques to Predict Voluntary Intake in Beef Cattle
… to estimate diet quality and dry matter intake (DMI), fecal samples and phenotype data were collected from 14 beef cattle trials that utilized Calan-gate feeders (American Calan, Northwood, NH) or electronic GrowSafe? feedbunks (GrowSafe? DAQ 4000E; GrowSafe? system Ltd., Airdire, AB, Canada) to …
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Defining effective fiber content of dairy rations
… to determine effects on dry matter intake (DMI), nitrogen balance (NB), rumen volatile fatty acids (VFA), and rumen fluid (RFD) and solids (RSD) dilution rates. DMI was highest for added fiber rations and higher for CSH than hay rations. Digestibility of DM was depressed for added fiber …
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Effect of sward height and concentrate supplementation on forage dry matter intake, digestibility and grazing time of spring-calving beef cows
… supplement level interaction (P > .10) on forage DMI, DMD or grazing time (GT). Cows on low SH had greater (P < .08) DMI and GT (P < .01) than cows on high SH. Forage DMI, DMD and GT decreased (P < .05) with supplementation. Grazing efficiency declined with supplementation and advancing grazing …
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Day-to-Day Variation in the Feed Consumption of Dairy Cows in Early Lactation
… complete-block design. Weekly means of DMI, milk production, and body weight were analyzed. Individual cow daily DMI data were fitted to the exponential model. There was no effect of treatment on these variables or the fractional rates of increase in DMI. Multiple regression analysis …
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Aspects of Dzyaloshinskii-Moriya Interaction in Two Dimensional Magnetic Structures
… of a strong Dzyaloshinskii-Moriya interaction (DMI). In this thesis, the DMI mediated by the conduction electrons in two dimensional magnetic systems such as magnetic thin lms or at the interfaces between two magnetic materials has been studied. I calculate the Ruderman-Kittel- Kasuya-Yosida …
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Evaluation of race population distribution, fungicide sensitivity, and fungicide control of Exserohilum turcicum, the causal agent of northern leaf blight of corn
… increase NLB control. Demethylation inhibitor (DMI) fungicides have been labeled for corn use since the early 1990s; in this dissertation a study was conducted to measure E. turcicum baseline sensitivity to DMI fungicides and monitor shifts in sensitivity over years. Metconazole, propiconazole, …
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Carbon and Deuterium MRI studies of human brain metabolism
… 13C pyruvate and Deuterium Metabolic Imaging (DMI) are two metabolic imaging techniques that allow for the metabolic uptake of the brain to be measured alongside the downstream metabolic processes. The work begins with the implementation of imaging techniques to clinical field strengths for …
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User interface design and evaluation of a shipboard electronic warfare console
… direct manipulation and command-key interaction (DMI and CKI, respectively) styles while adding a computer-aided emitter library management system, an on-screen oscilloscope, a polygon display of emitter parameters, range information, icons, increased usage of color, and other design changes. …
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Predicting motif mimicry in viruses
… proteins, and domain-motif interactions (DMI) between a globular domain and a short linear motif (SLiM) in its partner. Advances in high-throughput experimental techniques have been applied at large-scale in an attempt to characterise the interactomes of various organisms. However, the PPI …
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Characterizing resistance of Erysiphe necator to fungicides belonging to the quinone outside inhibitors and demethylation inhibitors
… and resistance to demethylation inhibitors (DMIs) has also developed. The goal of this research was to characterize fungicide resistance by elucidating resistance mechanisms and determining its stability. QoI resistance persisted for several years in a field population after QoI application …
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Effect of varying levels of neutral detergent fiber and total digestible nutrients on dry matter intake of dairy heifers
… for the light and heavy blocks, respectively. DMI as a percent of BWT differed across NDF levels for light heifers (3r'= 2.96, 2.56, 2.57, 2.57, and 2.87 % of BWT for the low, med., high NDF, and low, high TDN treatments, respectively). Heavy heifer DMI% did not differ (.Â¥= 2.45, 2.40, 2.24, …
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Effect of Forage Physical Form on Chewing Activity, Dry Matter Intake, and Rumen Function of Dairy Cows
… investigated as a modifier of dry matter intake (DMI), chewing activity, and digesta passage in sheep and steers fed all forage diets, but has not been examined using dairy cows in early lactation. The purpose of this study was to determine effect of reducing FPS on production, chewing, and …
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