Implant Symposium

July 1997

 

 

Prologue to the Symposium

F. Owens, D. Gill, F. Dolezal, B. Morgan, and G. Horn

 

History of Hormonal Modifier Use

A. P. Raun and R. L. Preston

 

Growth Stimulants: Compounds, Concentrates, Combinations and Regulations

R. Botts, P. Anderson and K. DeHaan

 

Mechanisms of Action of Estrogens and Androgens on Performance of Cattle - Hormonal Basis

A. Trenkle

 

Effects of a Combined Trenbolone Acetate and Estradiol Implant (Revalor-S) on Carcass Composition and Biological Parameters of Feedlot Steers

W. R. Dayton, B. J. Johnson, and M. R. Hathaway

 

Factors Affecting Release Rates and Blood Levels of Hormones from Steroidal Implants

R. T. Brandt, Jr.

 

Implants for Suckling Steer and Heifer Calves and Potential Replacement Heifers

G. Selk

 

Stocker Cattle Responses to Implants

G. L. Kuhl

 

Effects of Implants on Performance and Carcass Traits of Feedlot Steers and Heifers

S. K. Duckett, F. N. Owens, and J. G. Andrae

 

The Effect of Implanting Cull Cows on Gain, Intake, Feed Conversion, and Carcass Characteristics

D. D. Simms

 

Carryover and Lifetime Effects of Growth Promoting Implants

T. L. Mader

 

Costs of Reworking Cattle

T. L. Stanton

 

Interactions of Implant Response with Gender, Age, and Animal Type

R. H. Pritchard and S. Rust

 

Effects of Pen Size on the Implant Response of Feedlot Cattle

A. Turgeon and W. Koers

 

The Impact of Limit Feeding, Season and Type of Cattle on Implant Response

K. Eng

 

Buller Steers - Causes and Control

R. P. Wettemann and F. Lehman

 

Effects of Growth Stimulants on Protein Requirements of Feedlot Cattle

A. DiCostanzo and C. M. Zehnder

 

Impact of Implants of Performance and Carcass Value of Beef Cattle: Statistical Problems

J. W. Oltjen

 

Implant Program Effects on USDA Beef Carcass Quality Grade Traits and Meat Tenderness

J. B. Morgan

 

Impact of Implants on Carcass Yield Grade Traits and Cutability

H. G. Dolezal

 

Economics of Beef Production With and Without Implants

D. R. Gill and J. N. Trapp

 

Consumer Acceptance - Domestically and Internationally - Of Beef From Cattle Produced With Use of Growth Promotant Implants

G. C. Smith

 

USDA Residue Tracking Program for Growth Promotants

H. R. Cross and M. L. Pfeiffer

 

Rationale for the Safety of Implants

R. L. Preston

 

Implant Practices by Nutritional Consultants: Survey Results

M. L. Galyean

 

Research Needs in Animal Production

M. L. Galyean

 

Research Needs in Meat Quality

J. W. Savell

 

Panel Discussion

W. Koers, S. Hays, K. Eng, and M. Hubbert