Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 14 of 14 for “"growing cattle"”.
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Nutritional strategies for growing cattle in the Southeastern United States
Cattle operations in the Southeastern United States are primarily cow-calf and stocker based and rely heavily on forage. As such, research regarding supplementation strategies that are specific to both the forage cultivars and management strategies that are common in the region are necessary for …
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Limiting amino acids for growing cattle fed diets based on corn and corn gluten feed
… of AA provided by microbial protein. Providing growing cattle with adequate quantities of post-ruminal, absorbable AA is essential for optimizing performance. Two experiments were conducted to determine which AA were limiting for Angus × Holstein crossbred steers fed a corn-based diet. In …
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Efficacy of guanidinoacetic acid supplementation to growing cattle and relative bioavailability of guanidinoacetic acid delivered ruminally or abomasally
… acid (GAA) as a feed additive for growing cattle. The first experiment utilized 7 ruminally cannulated Holstein steers (280 ± 14 kg) in a 5 × 5 Latin square design and evaluated relative bioavailability of GAA. Treatments were continuous ruminal or abomasal infusion of 0, 10, or 20 …
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Mathematical models of the physiological mechanisms affecting the adaptation of growing cattle during and after a period of undernutrition
… (submaintenance) and realimentation for growing cattle.
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The energy requirements for the normal growth of dairy heifers
… definite knowledge of the energy requirements of growing cattle are desirable. First, the energy requirement of the animal is known to be high and because of the increased cost of feeds with high energy value there is a greater economic demand to know the actual energy requirement of a young …
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Methods to improve growth efficiency in beef cattle
… undegradeable protein (RUP) within the diet for growing cattle is essential in meeting limiting amino acid (AA) requirements that cannot be fulfilled by microbial protein. Supplementing feedstuffs with greater RUP tend to be the most expensive ingredient within a diet. Alternative methods that …
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Determining rumen degradable protein requirements in growing beef cattle
… by calculating crude protein (CP) values, and cattle have been fed using this system for decades. However, the downside of this methodology is that it fails to partition protein content of the diet into rumen degradable protein (RDP) and rumen undegradable protein (RUP). The segmentation of …
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A mathematical model of browse and herbage production in communal grazing lands of semi-arid regions
… of this work is to extend an existing model of growing cattle and grass production in a semi-arid rangeland.The existing model which is basically Dye's (1983) model in differential equation form handles: i) the growth and performance of cattle measured in terms of weight, ii) the initiation of …
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Manure management decision-making of cattle-feed growers in northeastern Colorado
… on which to apply manure, the monetary value of cattle manure as perceived from a farmer's perspective, and how densely farmers choose to apply manure. Using response data from a mail-survey of farmers operating near feedlots, I found that a farmer's manure source, perceptions about manure …
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The effects of extended-release eprinomectin on heifer performance and fescue toxicity and an evaluation of parasite resistance
… has shown improvements in growth performance of growing animals when treated with either ivermectin or extended-release eprinomectin. No work has determined the mechanism for this improvement though. The objective of this thesis was to determine if parasite resistance to extended-release …
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The Effect of Three Fescue Types and Lakota Prairie Grass on Copper Status, Dry Matter Intake, and Alkaloid Appearance of Beef Steers
… for large economic losses in the beef cattle industry each year. This research examined the effect of three fescue types [endophyte-infected Kentucky 31 tall fescue (E+), endophyte-free Kentucky 31 tall fescue (E-), non-ergot alkaloid-producing endophyte Q4508-AR542 tall fescue (Q)], …
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Alternative management strategies for growing and stocker cattle
… alternative management strategies for limit-fed growing beef cattle and yearling stocker cattle. Previous research reported improvements in feed efficiency when growing cattle were limit-fed a high-energy diet based on corn and corn co-products compared with a traditional high-roughage diet fed …
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Influence of nutrition on the muscle transcriptome and ruminal microbiome in cattle
Beef cattle nutrition research has historically focused on formulating diets to address nutrient requirements of cattle for given level of animal performance. While predictive models account for many factors that may affect nutrient requirements, additional physiological effects can alter the …
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Enhancing the feeding value of corn crop residues to improve beef cattle production
Corn has been used in cattle diets for more the 50 years in the United States. However, since 2005 when the “Ethanol Era” started, the demand for corn to be converted in to ethanol has been increasing. The increased demand for corn to be converted into ethanol, led to increased corn prices. When …