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Filtering by: Subject Beef cattle--Breeding--Oregon Remove constraint Subject: Beef cattle--Breeding--Oregon Committee Member Estill, Charles Remove constraint Committee Member: Estill, Charles

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  • Nutritional Management of Beef Cows During Late-Gestation to Enhance Offspring Productivity

    Creator:
    Marques, Rodrigo Da Silva
    Abstract:
    Two experiments evaluated nutritional management of late-gestating beef cows to enhance offspring productivity. The objective of experiment 1 was to evaluate the effects of organic and inorganic Cu, Mn, Zn, and Co supplementation to beef cows during late-gestation on performance and physiological responses of the offspring. The objective of experiment...
    Resource Type:
    Dissertation
    Full Text:
    finishing diets offered to cattle…………………………………………………………………………………….. 46 3.3. Performance of beef cows

  • Nutritional strategies to improve the reproductive performance of beef females

    Creator:
    Cappellozza, Bruno Ieda
    Abstract:
    In the first set of studies, 2 experiments evaluated the influence of supplement composition on ruminal forage disappearance, performance, and physiological responses of Angus × Hereford cattle consuming a low-quality, cool-season forage (8.7 % CP and 57 % TDN). In Exp. 1, 6 rumen-fistulated steers housed in individual pens were...
    Resource Type:
    Dissertation
    Full Text:
    = Week 1 CHAPTER 1 INTRODUCTION Beef cattle production in Oregon is mainly constituted by

  • Impacts of Stocking Density on Development and Puberty Attainment of Replacement Beef Heifers

    Creator:
    Schubach, Kelsey M.
    Abstract:
    The following experiment presented herein compared growth, physical activity, stress-related responses, and puberty attainment in heifers reared on high- (HIDENS) or low-stocking densities (LOWDENS). Sixty Angus x Hereford heifers were ranked by age and BW (210 ± 2 d and 220 ± 2 kg, respectively) on d 0, and assigned...
    Resource Type:
    Masters Thesis
    Full Text:
    scrutiny of beef production systems is growing rapidly, and cattle welfare is one of the main targets for