Index Catalog // ScholarsArchive@OSU

The effect of prepartum anionic diets on cortisol, adiponectin, and tumour necrosis factor-α expression at varying levels of body mass index in preparturient dairy cows: implications for insulin resistance

Creator:: Puntenney, Steven B.
Abstract:: Twenty-six Holstein and 18 Jersey multiparous cows in a randomized block design were assigned by calving date and breed to a non-anionic prepartum diet (CTRL) or a treatment diet containing a commercial anionic salt supplement (Animate®). Control and treatment diets were formulated to a dietary anion-cation difference (DCAD) of 21.3...
Resource Type:: Dissertation
Full Text:: Dairy Cows; Implications for Insulin Resistance Twenty-six Holstein and 18 Jersey

Hemorrhagic bowel syndrome in dairy cattle and efficacy of feed additive in stimulating immune response in livestock

Creator:: Wang, Yong-Qiang
Abstract:: Hemorrhagic bowel syndrome (HBS) is a devastating disorder affecting high producing dairy cattle. As an important emerging disease (Animal and Plant Health Inspection Service, 2003), HBS is now estimated to account for > 2% of the deaths of dairy cattle (Kirkpatrick et al, 2001). However, little is known about the...
Resource Type:: Dissertation

Effects of conjugated linoleic acids on PGE₂, PGF₂α and progesterone production by bovine luteal cells in vitro

Creator:: May, Katherine C. P.
Abstract:: Feeding conjugated linoleic acids (CLA) improves reproductive performance in dairy cows; however, the molecular mechanisms by which CLA improves reproduction are not well understood. Therefore, we evaluated whether the CLA isomers, trans-10, cis-12 CLA and cis-9, trans-11 CLA altered synthesis of steroidogenic hormones in bovine luteal cells by measuring concentrations...
Resource Type:: Masters Thesis
Full Text:: : Review of the Literature………………………………………….....6 Reproductive Performance in Dairy Cattle………………………………..6

The role of the plasminogen activator system in the etiology of ovarian follicular cysts in dairy cattle

Creator:: McNeel, Anthony Kent
Abstract:: Cystic ovarian disease (COD) is an anovulatory condition in cattle that afflicts between 6-18% of all dairy cows in the US. Ovulation is dependent on the plasminogen activator (PA) family of proteases and protease inhibitor for proteolysis, culminating in follicular rupture. Failure of the follicle to ovulate suggests an aberration...
Resource Type:: Dissertation
Full Text:: Ovarian Follicular Cysts in Dairy Cattle Abstract approved: Alfred R. Menino, Jr. Abstract

Effect of prepartum anionic supplementation on periparturient feed intake and behavior, health and milk production

Creator:: DeGroot, Michael Alan
Abstract:: Our objectives were to determine if dietary cation-anion difference (DCAD) and source of anions influence periparturient feed intake and milk production, and to characterize feeding behavior of dairy cattle during the transition period. Diets differed in DCAD (cationic or anionic) and anionic supplement (BioChlor®, Fermenten®, or anionic salts), and were...
Resource Type:: Dissertation
Full Text:: characterize feeding behavior of dairy cattle during the transition period. Diets differed in DCAD (cationic

Perennial ryegrass nonstructural carbohydrates in dairy cattle nutrition

Creator:: Buyserie, Annette C.
Abstract:: Ruminal microorganisms require nitrogen and energy for microbial crude protein (MCP) synthesis. High-quality grass provides an excess of readily available proteins relative to available carbohydrates which reduces the conversion efficiency of grass protein to MCP. Nonstructural carbohydrates (NSC) are the primary source of readily available energy. Objectives of trial 1...
Resource Type:: Masters Thesis

Improving the nutritional and textural properties of dairy products by feeding Holstein cows processed flaxseed

Creator:: Oeffner, Scott P.
Abstract:: There is growing public concern about the high proportion of saturated fatty acids in milk fat; however, feed intake, energy partitioning toward milk synthesis, and milk fat concentrations can decrease when cows are fed high concentrations of unsaturated lipids. The objective of this study was to identify the optimal rate...
Resource Type:: Masters Thesis
Full Text:: . Title: Improving the Nutritional and Textural Properties of Dairy Products by Feeding Holstein Cows

Effects of prostaglandin F2alpha on neutrophil populations, uterine health and reproductive performance in dairy cows, Effects of prostaglandin F₂α on neutrophil populations, uterine health and reproductive performance in dairy cows

Creator:: Lulay, Adrienne McCracken
Abstract:: Incidences of uterine infections in dairy cattle are high between parturition and Day 21 postpartum. Dairy cows with uterine infections are at risk for prolonged periods of days open and multiple services before becoming pregnant. Neutrophils are the first wave of immune system defense against uterine contamination. Neutrophil function seems...
Resource Type:: Masters Thesis
Full Text:: : ________________________________________________________________ Alfred R. Menino, Jr Incidences of uterine infections in dairy cattle are high between

Assessing the phosphorus and potassium balances in Oregon's dairies

Creator:: Higgs, Kathryn N.
Abstract:: A field study was conducted to assess phosphorus (P) and potassium (K) concentrations of both lactating and dry cow diets on Oregon's dairies. Thirty-seven dairy farms, located in western Oregon, were grouped according to geographic region, valley (V) or coast (C), and herd size, small (S) or large (L). Farms...
Resource Type:: Masters Thesis
Full Text:: P Requirements for Dairy Cattle ...................................... 8 Phosphorus requirements

The role of phosphoenolpyruvate carboxykinase in the periparturient and ketotic dairy cow

Creator:: Duncan, Jennifer S.
Abstract:: Although the occurrence of ketosis is a postpartum phenomenon, recent studies have focused on the prepartum period as key in the development of the disorder. Indicators of prepartum energy status, such as depressed dry matter intake (DMI) and elevated plasma non-esterified fatty acid (NEFA) concentrations have been associated with the...
Resource Type:: Masters Thesis
Full Text:: on the dairy. As performance of dairy cattle increases, so does potential for occurrence of

ScholarsArchive@OSU

The effect of prepartum anionic diets on cortisol, adiponectin, and tumour necrosis factor-α expression at varying levels of body mass index in preparturient dairy cows: implications for insulin resistance

Hemorrhagic bowel syndrome in dairy cattle and efficacy of feed additive in stimulating immune response in livestock

Effects of conjugated linoleic acids on PGE₂, PGF₂α and progesterone production by bovine luteal cells in vitro

The role of the plasminogen activator system in the etiology of ovarian follicular cysts in dairy cattle

Effect of prepartum anionic supplementation on periparturient feed intake and behavior, health and milk production

Perennial ryegrass nonstructural carbohydrates in dairy cattle nutrition

Improving the nutritional and textural properties of dairy products by feeding Holstein cows processed flaxseed

Effects of prostaglandin F2alpha on neutrophil populations, uterine health and reproductive performance in dairy cows, Effects of prostaglandin F₂α on neutrophil populations, uterine health and reproductive performance in dairy cows

Assessing the phosphorus and potassium balances in Oregon's dairies

The role of phosphoenolpyruvate carboxykinase in the periparturient and ketotic dairy cow

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