John D. Arthington

Specialist

John D. Arthington

Specialist

Primary Profile

Publications

Targeting ADG of Developing Replacement Heifers Using Age and Body Weight

John Arthington and Philipe Moriel

This publication was prepared to assist beef cattle producers and livestock agents in determining the target ADG and management system to develop replacement beef heifers in Florida. Written by John Arthington and Philipe Moriel, and published by the UF/IFAS Department of Animal Sciences, revised October 2021.

Forage Testing

J. M. Vendramini, M. S. Silveira, J. D. Arthington, and A. R. Blount

A UF/IFAS numbered Fact Sheet. in support of UF/IFAS Extension program: Plant Systems

Practical Uses for Ultrasound in Managing Beef Cattle Reproduction

Mario Binelli, Thiago Martins, John Arthington, Kalyn Waters, Vitor Mercadante, Philipe Moriel, and Angela Gonella-Diaza

This publication aims to discuss the use of ultrasound to assist with beef cattle reproduction, which includes evaluation of the pre-service status of heifers and cows, diagnosis of pregnancy, determination of fetal age and sex, and evaluation of reproductive fitness of embryo recipients. Written by Mario Binelli, Thiago Martins, John Arthington, Kalyn Waters, Vitor Mercadante, Philipe Moriel, and Angela Gonella-Diaza, and published by the UF/IFAS Department of Animal Sciences, revised April 2023.

The Interaction of Nutrition and Health in Beef Cows

Matt Hersom

Implications of Round Bale Dimensions on Hay Use

Matt Hersom, Todd Thrift, and Joel Yelich

Implications of Cow Body Condition Score on Productivity

Matt Hersom, Todd Thrift, and Joel Yelich

Factors that Affect Calf Selling Price at Marketing

Matt Hersom and Todd Thrift

Alternative Feeds for Beef Cattle

R. O. Myer and Matt Hersom

Shrink in Beef Cattle: A Marketing Consideration

Matt Hersom, Todd Thrift, and Joel Yelich

Florida Cow-Calf and Stocker Beef Safety and Quality Assurance Handbook: Quality Control Points

Todd A. Thrift, Matt J. Hersom, and Max Irsik

Nursing Calf Deworming

Jeffrey N. Carter and Matthew J. Hersom

How to Measure Body Condition Score in Florida Beef Cattle

Matt Hersom and Todd Thrift

Preconditioning Calves Using Co-products

Matt Hersom, Todd Thrift, and Joel Yelich

Water Nutrition and Quality Considerations for Cattle

Matt Hersom and Sonja Crawford

Culling and Replacement Rate in the Beef Cow Herd

Matt Hersom, Todd Thrift, and Joel Yelich

Phase-Feeding the Beef Herd for Improved Feed Utilization

Matt Hersom

Potential for Gossypol Toxicity When Feeding Whole Cottonseed to Beef Cattle

R. O. Myer, L. R. McDowell, and M. J. Hersom

Considerations for Selecting a Bull

Martha Thomas and Matt Hersom

Grass Tetany in Cattle

Y. C. Newman, M. J. Hersom, and W. E. Kunkle

This document is about grass tetany, sometimes called grass staggers or hypomagnesemia, that can be a serious problem in Florida with cattle grazing small grain or ryegrass pastures. The problem is usually confined to lactating cows. It is always associated with an imbalance in the mineral components of blood serum, especially reduced magnesium levels. In Florida, grass tetany is more severe when cattle are grazing young forage, particularly the first flush of growth during December and January. Once the forage becomes more mature, the likelihood of problems is reduced. Grass tetany is apt to appear under conditions of nutritional stress. Placing cattle on winter pasture directly after being on frosted or other low quality pasture may cause such a nutritional stress. First published in April 1997.