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Theses/Dissertations

2013

All Graduate Theses and Dissertations

Alfalfa

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Forage Yield And Quality Of Binary Grass-Legume Mixtures Of Tall Fescue, Orchardgrass, Meadow Brome, Alfalfa, Birdsfoot Trefoil, And Cicer Milkvetch, Steven R. Cox May 2013

Forage Yield And Quality Of Binary Grass-Legume Mixtures Of Tall Fescue, Orchardgrass, Meadow Brome, Alfalfa, Birdsfoot Trefoil, And Cicer Milkvetch, Steven R. Cox

All Graduate Theses and Dissertations

Rising fertilizer prices have led a return to the use of grass-legume mixtures to reduce N costs and improve pasture productivity. The objective of this study was to determine optimal species combinations of binary grass-legume mixtures to improve forage production and pasture nutritive value in irrigated pastures of the Intermountain West. The study was conducted at the Utah State University Intermountain Pature Research Facility near Lewiston, UT. Tall Fescue (TF), Orchardgrass (OG), and meadow brome (MB) were grown with alfalfa (ALF), birdsfoot trefoil (BFTF), and cicer milkvetch (CMV) in legume-grass mixes and monocultures at planting ratios of 25:75, 50 ...


Strategic Approaches To Develop Optimal Feeding Program Of Brown Midrib Corn Silage To Lactating Dairy Cows In The Intermountain West, Michael Shane Holt May 2013

Strategic Approaches To Develop Optimal Feeding Program Of Brown Midrib Corn Silage To Lactating Dairy Cows In The Intermountain West, Michael Shane Holt

All Graduate Theses and Dissertations

In two lactation studies reported in this dissertation, it was hypothesized that feeding 35% brown midrib corn silage (BMRCS) and 25% alfalfa hay (dry matter basis) would result in increased dry matter intake (DMI) around peak lactation compared with feeding conventional corn silage (CCS), causing longer peak milk production, and that feeding dairy cows in early lactation a 16% crude protein diet with fair quality alfalfa hay (FAH) in BMR-based diets would maintain milk production, reduce urinary N excretion, and improve N efficiency compared to those fed high quality alfalfa hay (HAH) in CCS- or BMR-based diets. A third experiment ...