Commodity investment is fundamentally motivated by a desire to improve the performance of portfolios composed of stocks and bonds. Throughout this paper we analyze the out-of-sample performance effects derived from including commodities in a stock-bond portfolio for seven distin…
"186" Result
Sort By:
A series of experiments were conducted to test the effects of feeding a low intact protein diet provided from corn and soybean meal to broilers during the starter phase of growth. The theory is that the broiler can achieve similar growth by feeding this diet when compared to the…
Cortisol and β-endorphin have been shown to inhibit secretion of estradiol and luteinizing hormone. A decrease in luteinizing hormone and estradiol could cause infertility in mares. Experiments were performed to determine if increased intensity of reproductive management before …
The regulation of intestinal calcium transport is a subject of continuing controversy. Most investigations on this subject have involved use of the laboratory rat or layer-type chicken. The research reported in this thesis was conducted in 0- to 21-d-old rapidly growing broiler …
Studies of follicular development in cattle may lead to methods for more precise estrous synchronization. Nineteen lactating cows and 20 heifers were used to determine if progesterone results in a persistent dominant follicle. Cows and heifers were assigned (at estrus = d 0) to …
Eighteen Quarter Horse (Experiment 1)and 17 Arabian (Experiment 2) weanlings were used to determine the influence of housing on third metacarpal bone mass. In Experiment 1, weanlings were separated into paddock (P1, n = 6), stall (S1, n = 6), or exercised groups (X1, n = 6). Exp…
Poultry can be a vehicle for the transmission of salmonellosis and the contamination of carcasses is primarily from feces. Bactericidal treatments may be used to correct the problem. A study was conducted to evaluate the effectiveness of several bactericides (i.e., chlorine, tri…
Pasteurella multocida, the causative agent of avian cholera, has been recognized as one of the important infectious agents for avian species. Despite vaccination efforts, avian cholera outbreaks still occur in the commercial poultry. However, the manner in which birds become inf…
Near infrared reflectance spectroscopy (NIRS) and geostatistical techniques were used to predict diet quality of sub-Saharan African (SSA) livestock, and to create cokriged estimated diet quality maps for cattle across a landscape. Rations of native vegetation were stall-fed to …
Point based biophysical simulation of forage production coupled with 1-km AVHRR-NDVI data was used to determine the feasibility of projecting forage condition 84 days into the future to support stocking decision making for livestock production using autoregressive integrated mov…
Fifty mid-lactation Holstein cows were used in a six-week feeding trial to study effects of high-forage, high-fat diets on dry matter intake, milk production, milk composition, and blood constituents. Cows were divided into 10 replicates, each consisting of five cows. Each cow w…
The physiological status of cattle and associated dietary factors affect the dietary requirement for Se. To partially quantify these effects, a trial was conducted in which fetuses were collected from pregnant heifers at slaughter. Concentrations of Se in fetal liver decreased s…
Changes in genetic evaluations were studied on Holstein bulls in standard progeny-testing programs using data from USDA sire evaluations of July 1989 through May 2000. Mean actual changes in predicted transmitting abilities (PTA) for milk, fat, and protein were small but standar…
The reduced fertility following earlier estrus synchronization protocols made it necessary to develop new protocols based on our understanding of ovarian follicular dynamics and corpus luteum (CL) function in cattle. “Ovsynch” and “CIDR” are emerging protocols for ovulation sync…
Communities in the Sahel region are confronted with problems such as depletion of soil fertility, food insecurity, and climate change, which exacerbate poverty and malnutrition for the inhabitants. The farmlands in Toukar, Senegal, are rapidly denuded of native trees, mainly Aca…
Baled prairie hay (10% CP) and wheat straw (3.8% CP) were allowed to mold. Moldy and nonmoldy portions were ammoniated (3 kg anhydrous ammonia/100 kg; 4 to 21°C; 7 d) and fed. Ammoniation increased CP in nonmoldy straw (3.8 to 8.8%) and moldy straw (3.3 to 6.2%) and caused lesse…
Four levels (3.8, 6.3, 8.4 and 23.5%) of slow-release urea (SRU) were tested for ammonia nitrogen concentration release in vivo and in vitro. The in vivo ruminal ammonia nitrogen concentration for all steers increased (P < .05) with increasing levels of SRU in the diet. The rumi…
A 6 x 6 Latin Square design intake and in vivo digestion trial was conducted using six crossbred steers to evaluate the nutritive value of alfalfa, mature ryegrass, common and Alicia bermudagrass, Pensacola bahiagrass and a 50:50 mixture of alfalfa and ryegrass hays. Voluntary d…
The effect of phenolic compounds and proanthocyanidins present in three tree legumes, Paraserianthes falcatoria, Calliandra calothyrsus and Gliricidia sepium, upon growth, intake and diet utilization were evaluated. Tree leaves were evaluated when fed as a supplement to a concen…