Author: Irby Jackson HarrellPublisher:
ISBN:
Category :
Languages : en
Pages : 54
Book Description
The Effects of Initial Subcutaneous Fat Thickness and Grade of Feeder Heifers Upon Subsequent Feedlot Performance, Carcass Grade and Yield
Author: Irby Jackson HarrellEffects of Initial Subcutaneous Fat, Grade, and Weight of Feeder Heifers on Their Subsequent Feedlot Performance and Carcass Characteristics
Author: David M. RowlandPublisher:
ISBN:
Category : Heifers
Languages : en
Pages : 50
Book Description
The Relationships of Feeder Grade, Weight, Subcutaneous Fat Thickness, and Skeletal Size to Feedlot Performance and Carcass Characteristics of Hereford Heifers
Author: The Effect of Initial Subcutaneous Fat Thickness on the Performance of Feeder Heifers
Author: Moyassar Yehya Al-MallahPublisher:
ISBN:
Category :
Languages : en
Pages : 46
Book Description
The Effect of Early Weaning Beef Calves on Feedlot Performance, Carcass Characteristics, Cow Performance, and Economic Return
Author: Jennifer Marie BarkerPublisher:
ISBN:
Category : Beef cattle
Languages : en
Pages : 226
Book Description
The Effect of Body Weight, Hip Height and Subcutaneous Fat Thickness on Winter and Spring-summer Pasture Performance and Subsequent Feedlot Performance of Beef Steers
Author: Thomas Dale BrysonPublisher:
ISBN:
Category : Beef cattle
Languages : en
Pages : 122
Book Description
Evaluation of USDA Feeder Calf Grades and Health Status of Steers and Their Impact on Live and Carcass Performance in South Texas
Author: David Wayne GroschkePublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
In 2003-2004, the Texas A & M University Ranch to Rail South program evaluated 430 steers in Edroy, TX. Data were analyzed on several traits, but feeder calf frame and muscle grades and health status were emphasized. Muscle thickness grade(M), frame size grade (F), muscle thickness by frame size interaction (M*F), sire breed type classification (SIRECODE), lung score (LUNG), ranch of origin (RANCH), and level of treatment (LVLTRT) were evaluated as independent variables as affecting ribeye area (REA), marbling score (MARB), fat thickness (FAT), hot carcass weight(HCW), average daily gain (ADG), medicine costs (MED), days on feed (DOF), initial value (VALUE), carcass value (CARVAL), and initial weight (INWT). M (P
The University of Tennessee Record
Author: University of TennesseePublisher:
ISBN:
Category :
Languages : en
Pages : 168
Book Description
Advanced Degrees Granted
Author: University of Tennessee, Knoxville. Graduate SchoolPublisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 574
Book Description
Effects of Delayed Steroid Implanting on Health, Performance, and Carcass Quality in High Health Risk, Auction Market Sourced Feedlot Steers
Author: Robert D. MunsonPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Auction derived feeder calves (n=1,601; initial BW = 273.5 ± 4.7 kg) were used to examine the effects of delayed administration of the initial steroid implant on health, performance, and carcass characteristics of feedlot cattle. Steers were procured from multiple-source auction markets in the southeastern United States and shipped to a central Kansas feedyard over a 6 week period from December 2009 to January 2010. Steers were rested overnight prior to processing, then were randomly assigned, within arrival block, to 1 of 2 treatments: 1) implanted with Revalor-XS (40 mg estradiol and 200 mg trenbolone acetate) immediately upon arrival (ARRIVAL); or 2) implanted with the same implant after 45 d (DELAYED). Cattle were weighed on a group scale immediately following processing of each block. Feed deliveries were measured using load cells on feed trucks and recorded daily. Cattle were evaluated daily for morbidity and mortality by trained feedyard health personnel. Sick or injured cattle were removed from the home pen for further diagnosis and treatment. Individual animal health data were obtained and recorded daily. Final BW was calculated by dividing HCW by the average dressing percent of the pen. Carcass data (quality grade and yield grade) were obtained by USDA personnel; presence of lung lesions, pleural adhesions, and liver abscesses was evaluated by trained university personnel. Delaying the initial implant tended to reduce morbidity (24.7 vs. 28.5%; P = 0.13) and reduced railer rates (1.8 vs. 3.3%; P = 0.02); however, there were no effects of timing of implant administration (P ≥ 0.31) on rates of retreatment, mortality, lung lesions, or pleural adhesions. Implanting immediately upon feedlot arrival resulted in numerical improvements in ADG and feed conversion, but these differences were not statistical (P ≥ 0.56). Cattle implanted upon arrival had numerically greater HCW and yield grade vs. cattle implanted on d 45; however, these differences were not statistical (P ≥ 0.16). Delaying the initial implant 45 d did not influence animal health, performance parameters or carcass characteristics in high risk feeder calves.