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- 12Graduate Studies and Research, Faculty of
- 12Graduate Studies and Research, Faculty of/Theses and Dissertations
- 5Roy Berg Kinsella Research Ranch
- 5Roy Berg Kinsella Research Ranch/Journal Articles (Kinsella Ranch)
- 3Biological Sciences, Department of
- 3Biological Sciences, Department of/Journal Articles (Biological Sciences)
Special arenas were used to observe and describe courtship and spawning behavior of captive striped bass Morone saxatilis, white bass Morone chrysops, and white perch Morone americana. To induce final gonadal maturation and spawning, fish were either implanted with gonadotropin-releasing hormone...
The lifespan of an individual flower is often affected by pollination success. Species differ regarding whether male function (pollen removal), female function (pollen deposition), or both trigger floral senescence. We studied senescence in the single- flowered, deceptive orchid Calypso bulbosa...
Effect of postweaning implantation of zeranol and dietary energy level on growth and reproductive performance of replacement beef heifersDownload
Eighty-one heifer calves weaned at an average age of 6 mo were used to study the effect of postweaning zeranol implantation, on the growth and reproductive performance of heifers fed to grow slowly on three dietary energy levels. Forty heifers were implanted with 36 mg of zeranol at 30 d and...
The effect of winter weight loss in Hereford cows on calf birth weight and performance to weaning was examined over a period of 4 yr. The average winter weight loss of cows (60 + 36.2 kg mean += SD) over the period of this study had a significant effect (P < 0.001) on calf birth weight, but no...
Effects of Supplemental dietary starch on production and reproductive characteristics in postpartum dairy cowsDownload
This study evaluated the effects of dietary starch on productive and reproduction parameters of postpartum dairy cows. Three diets were fed, with increasing starch levels from calving until 70 days in milk. Treatment had no effect on dry matter intake, energy balance, specific metabolic hormones...
1233 April/May born calves were weaned either on 30 Sept. (EW) or 31 Oct. (LW) to assess the effects of weaning date on subsequent performance of their dams and female calves. Cows in the EW group lost less weight than those in the LW group in the month of October (0.003 vs. 0.48 kg d−1, P <...
Effects of flood seasonality and frequency on northern pintail and other breeding ducks in managed prairie wetlandsDownload
Anthropogenic flooding to create wetlands is a management option intended to compensate for historical loss of natural wetlands in the Dry Mixedgrass Prairie of western Canada. It may help moderate or reverse declines in density of breeding Northern Pintails (Anas acuta L.) and other waterfowl....
Factors Influencing Mountain Pine Beetle (Coleoptera: Curculionidae: Scolytinae) Dispersal by Flight and Subsequent Trade-off Between Beetle Flight and ReproductionDownload
The mountain pine beetle, Dendroctonus ponderosae Hopkins (Coleoptera: Curculionidae: Scolytinae), has an obligatory dispersal phase before selection of a suitable host for brood production. Flight during the dispersal phase is affected by both beetle physiology and environmental factors....
Litter birth weight phenotype and maternal n-3 long-chain polyunsaturated fatty acid supplementation in pigsDownload
Research reported in this thesis investigated effects of n-3 polyunsaturated fatty acid (LCPUFA) supplementation, litter birth weight phenotype, and their possible interactions, on reproductive performance of the gilt and sow and postnatal performance of the litter. In an initial study, LCPUFA...
Local and regional demography in a migratory forest songbird and effects of forest management intensityDownload
The numerical response of forest birds to habitat alteration has been well documented in North America, but the underlying demographic processes driving these changes remain largely unknown. Among species sensitive to such alterations, the Ovenbird (Seiurus aurocapilla) shows one of the largest...