Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 234 for “"dairy cattle"”.
-
Steam-Flaked Soybeans in Dairy Cattle Diets
… properties of steam-flaked soybeans in lactating dairy cattle. One component of the investigation was an in situ study that evaluated the rumen degradability and intestinal digestibility of steam-flaked soybeans. A second component of this research investigated the effect of particle size on rumen …
-
Regulation of glucose metabolism in dairy cattle
… was adequate in assessing insulin sensitivity in dairy cattle. The acute hyperinsulinemia induced by the insulin tolerance test or by the hyperinsulinemic euglycemic test did not affect plasma leptin concentrations.
-
Illinois dairy cattle breeding practices and costs
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2024-03-01 without embargo terms
-
Improving the Efficiency of Dairy Cattle Feeding
… that predict nutrient supply and requirements of dairy cows result in inefficient feeding, as under-prediction of requirements results in deficiency, and over-prediction results in excess. To avoid limitations in production due to AA deficiencies, protein is fed in quantities that likely exceed …
-
Heat-Treated Soybean Proteins for Lactating Dairy Cattle
<p>The value of heat treatment of protein supplements to reduce protein solubility and increase protein utilization was studied in two lactation trials. Experiment I was designed to study the utilization of heat-treated soybean meal (HSBM) by cows in early lactation. An extrusion process with moist …
-
A System for Making Selective Matings in Dairy Cattle
… here is an application of this principle to dairy cattle. It is known as the Animal Analysis Associates system of analyzing dairy cattle. This system will hereafter be designated by its trademark-a.A.a. The a.A.a. program was originated by William A. Weeks of Rockford. Illinois, formerly a …
-
Modeling post absorptive amino acid metabolism in dairy cattle
… portal drained viscera (PDV) and liver (LIV) of dairy cows, 3) predict EAA use by the mammary (MAM) and non-splanchnic, non-mammary (OTH) tissues, and 4) predict milk protein production from MAM use. To evaluate the first objective, a model was constructed using previously derived equations for …
-
Effects of diet on phosphorus digestion in dairy cattle
… effects of diet on phosphorus (P) digestion in dairy cattle. The objective of the first study was to evaluate the effects of forage and non-fiber carbohydrate (NFC) content on total P (TP) and inositol phosphates-P (IPs-P) digestion. Samples of feed, duodenal digesta and feces from a previously …
-
Variables affecting the lactation estimation curve in western dairy cattle
LD2668 .T4 1966 C73
-
Variables affecting the lactation estimation curve in western dairy cattle
LD2668 .T4 1966 C73
-
An Evaluation of High Protein Oat Forage for Dairy Cattle
… ruminants, the most efficient is the dairy cow. Sixty-four percent of the feed consumed by dairy cattle is forage (40), the remaining portion consists of feed products not fit for human consumption. Dairy cattle convert 25% of the protein and 17% of the energy consumed as feed …
-
A Genome Scan for Quantitative Trait Loci in Dairy Cattle
… traits was completed in Holstein-Friesian cattle using a granddaughter design. Eight half-sibling families consisting of 1,068 bulls were genotyped for 174 microsatellite markers. The markers provide coverage of 2,500 cM or approximately 85% of the cattle genome. Quantitative trait loci …
-
General Reproductive Performance of Crossbred and Contemporary Purebred Dairy Cattle
Made available in DSpace on 2014-12-12T00:36:23Z (GMT). No. of bitstreams: 1 7212326.pdf: 5884481 bytes, checksum: 6fddc4dbb8964ec32f687542618be1e2 (MD5) Previous issue date: 1971
-
Health and Welfare Implications of Temperament Differences in Dairy Cattle
Dairy cattle exhibit consistent variation in behaviour between individuals, referred to as temperament. In humans consistent variation in behaviour is referred to as personality and has significant associations with health and wellbeing. The studies reported in this thesis investigated whether …
-
Ruminal Nitrogen Recycling and Nitrogen Efficiency in Lactating Dairy Cattle
… and poses a risk to human health. Although the dairy industry utilizes milk urea N (MUN) to monitor protein feeding and N excretion, phenotypic diversity among cows may influence MUN and thus bias feed management. An initial study using data from 2 previously published research trials and a …
-
The Effect of Inbreeding on Lifetime Performance of Dairy Cattle
… effect on the lifetime performance of dairy cattle.
-
Identifying a non-invasive measure of bone status in dairy cattle
… on-farm tools to assess phosphorus (P) status in dairy cows. In addition, the effects of parity and stage of lactation on measures of BMC of the fused 3rd and 4th metacarpal bone and of caudal vertebrae 14 and 15 were assessed. The caudal vertebrae and right front metacarpal (sample pairs) were …
-
Relationships between somatic cell counts and milk production in dairy cattle
… data collected by DHI supervisors in 28 Virginia dairy herds over a three year period were analyzed. Relationships between somatic cell count and milk production were determined. A curvilinear relationship between somatic cell count and daily milk yield was shown to exist. The relationship …
Page 1 of 12