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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Assessment of Factors Influencing Sale Price in Mississippi Feeder Calf Board Sales

Caldwell, Elizabeth Anne 06 May 2017 (has links)
The objective of this study was to examine specific factors that affect the selling price of feeder calves marketed through the Mississippi Feeder Calf Board Sale program, an alternative marketing strategy developed to offer producers an opportunity to increase prices received for their calves. A hedonic model was utilized to measure the effects of individual lot attributes on price. Results of sales conducted from 2008 to 2016 revealed a positive relationship between sale price and steer percentage, Brahman influence, the provision of information on growth implant practices, and number of loads per lot. Conversely, price was negatively associated with number of days from sale to loadout and the consignment of assembled lots or those consigned from multiple sellers. Lot hide color classification demonstrated varying effects on prices received. This data can enable commercial producers to evaluate production practices and make educated management decisions to improve the value of their cattle.
2

A survey to describe current feeder calf health and well-being program recommendations made by feedlot veterinary consultants in the United States and Canada

Terrell, Shane Patrick January 1900 (has links)
Master of Science / Department of Clinical Sciences / Daniel Ulan Thomson / Consulting veterinarians (CV; n=23) representing 11,295,000 head of cattle on feed in the United States and Canada participated in a beef cattle health and well-being recommendation survey. Veterinarians were directed to an online survey to answer feeder cattle husbandry, health and preventative medicine recommendation questions. The CV visited their feedyards 1.7 times per month. All CV train employees on cattle handling and pen riding while only 13% of CV speak Spanish. All CV recommend IBR and BVD vaccination for high-risk (HR) calves at processing. Other vaccines were not recommended as frequently by CV. Autogenous bacterins were recommended by 39.1% CV for HR cattle. Metaphylaxis and feed-grade antibiotics were recommended by 95% and 52% of CV, respectively, for HR calves. Banding was more frequently recommended than surgical castration as calf body weight increased. The CV recommended starting HR calves in smaller pens (103 hd/pen) and allowing 13 inches/hd of bunk space. The CV indicated feedlots need to employ one feedlot doctor per 7,083 hd of HR calves and one pen rider per 2,739 hd of HR calves. Ancillary therapy for treating respiratory disease was recommended by 47.8% of CV. Vitamin C was recommended (30.4%) twice as often as any other ancillary therapy. Cattle health risk on arrival, weather patterns and labor availability were most important factors in predicting feedlot morbidity while metaphylactic antibiotic, therapy antibiotic and brand of vaccine were least important. This survey has provided valuable insight into feeder cattle health recommendations by CV and points to needed research areas.
3

VALUE OF SYSTEMATIC THORACIC ULTRASONOGRAPHY INFORMATION FOR DETECTING BOVINE RESPIRATORY DISEASE (BRD) RELATED LUNG DAMAGE IN CROSSBRED DAIRY CALVES

Evan Bryant Long (10715370) 28 April 2021 (has links)
The purpose of this study is to evaluate the value of systematic thoracic ultrasonography (TUS) for detecting bovine respiratory disease (BRD) related lung damage in Holstein x Angus crossbred calves. Because the dairy industry is known to operate on small profit margins, it is important to assess the potential of this technology to help prevent the main source of financial loss related to calf production that dairy producers face. Studies have shown that BRD may impact nearly a fourth of all dairy calves before weaning. In an industry that is currently growing and evolving, it is important that producers have all the necessary resources to operate efficiently. TUS is known to be a quick and accurate predictor of BRD related lung damage, but this study focuses on the financial implications of BRD related lung damage on calf growth and efficiency—average daily gain (ADG) and milk-to-gain (M:G)—and the value of implementing TUS information to make sound management decisions. TUS along with BRD diagnosis information give producers a unique perspective on future growth and development of calves and could be part of the solution to promote larger profit margins for dairy producers. We find that the value associated with TUS and BRD diagnosis information is between $0.88/head and $13.44/head and depends on BRD incidence rate, feed price, and feeder price. Depending on the cost to the farm, it may be beneficial to implement this as a way to manage BRD damage, which we know to influence calf growth and efficiency.

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