Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 3 of 3
Full-Text Articles in Entire DC Network
The Relationship Of Ewe Body Mass To Lamb Production, Sebhatu Gebrelul
The Relationship Of Ewe Body Mass To Lamb Production, Sebhatu Gebrelul
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Body size was estimated by multiplying the average of the hip and chest widths by body length and chest depth in 208 ewes of three genotypes: Targhee x Targhee (TXT), Finn x Targhee (FXT), and Suffolk x Targhee (SXT), and two seasons, fall (pre-breeding) and spring (post-lambing). The estimated ewe body size did not fluctuate with season, body condition or physiological stress and proved to be a constant measure of size. Measuring linear body dimension is time consuming; and hence ewe body size can best be approximated by the chest depth in a regression equation. In the absence of linear …
Production Factors In Beef Cattle Finishing, Gary L. Anderson
Production Factors In Beef Cattle Finishing, Gary L. Anderson
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
A feeding trial was conducted comparing four finishing diets, typically fed in this area, two hormone implants zeranol (Ralgro) and estradiol 17-beta (Compudose), and a feed additive. Thirty-two Hereford steers were fed in individual pens to maintain accurate intake records. The four diets compared were: 1) a whole corn diet with a small amount of corn silage as roughage; 2) a high energy ground barley diet using corn silage and chopped alfalfa as roughage; 3) a total diet consisting of rolled barley, beet pulp, and ground alfalfa hay; and 4) a high energy rolled barley diet using corn silage and …
Alfalfa Production As Related To Irrigation Scheduling: An Economic Perspective, Craig L. Israelsen
Alfalfa Production As Related To Irrigation Scheduling: An Economic Perspective, Craig L. Israelsen
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
This study analyzed the economics of irrigation scheduling for alfalfa hay in the Cache Valley, Utah area. Yield, evapotranspiration (ET) and irrigation drainage loss, along with the costs and returns per acre attributable to irrigation scheduling, were simulated through the use of a computerized plant growth model. The model created yearly "irrigation schedules" for alfalfa hay based on actual climatic, soil and plant characteristic data from the Utah State University Greenville Experiment Station. The model calculated the irrigation schedules based on a soil-water balance equation which never allowed the available soil water to go below the crop stress point.
The …