João H. Bittar

0000-0002-6440-6785

Reproductive Tract Score: A Tool for Evaluating Beef Heifer Reproductive Potential

Mario Binelli, Thiago Martins, Cecilia C. Rocha, Felipe A. C. C. Silva, João Bittar, Philipe Moriel, Angela M. Gonella-Diaza, Lauren Butler, and Cindy Sanders

This publication explains the RTS methodology and suggests how it can be implemented in a cow-calf operation. Written by Mario Binelli, Thiago Martins, Cecilia C. Rocha, Felipe A. C. C. Silva, João Bittar, Philipe Moriel, Angela M. Gonella-Diaza, Lauren Butler, and Cindy Sanders, and published by the UF/IFAS Department of Animal Sciences, October 2021.

Analysis of the USDA’s 2017 Cow-Calf Management Practices Results: Part 1—Calf Crop and Calving Distribution

Angela M. Gonella-Diaza, Oscar Alejandro Ojeda-Rojas, João H. Bittar, andMario Binelli

This publication analyzes the calf-crop and calving distribution data reported on NAHMS Beef 1997 and provides insights and practical recommendations. Written by Angela Gonella, Oscar Alejandro Ojeda-Rojas, João Bittar, and Mario Binelli, and published by the UF/IFAS Department of Animal Sciences, November 2021.

Analysis of the USDA’s 2017 Cow-Calf Management Practices Results: Part 2—Breeding Practices/Reproductive Technologies

Mario Binelli, João Bittar, and Angela Gonella

This paper discusses the use of breeding practices and reproductive technologies in cow-calf operations, and the ways they affect calf crop. Written by Mario Binelli, João Bittar, and Angela Gonella, and published by the UF/IFAS Department of Animal Sciences, December 2021.

Analysis of the USDA’s 2017 Cow-Calf Management Practices Results: Part 3—Natural Service and Bull Management

João H. Bittar, Mario Binelli, andAngela M. Gonella-Diaza

This article aims to present and discuss the most common management practices related to bull use that can impact cow-calf production and to share relevant statistics of bull use based on the last USDA surveys. Written by João Bittar, Mario Binelli, and Angela Gonella, and published by the UF/IFAS Department of Animal Sciences, September 2022.

Comparing the Urine Ketone Strip Test and the Handheld Ketone Meter to Diagnose Ketosis in Early Lactation Dairy Cows

Klibs N. Galvao, Achilles Vieira Neto, Gustavo Peña, João H. Bittar, andLucas Ibarbia

Tips on Determining the Cause of Death in the Beef Cattle Operation

Taylor Davis, Lauren Butler, Christa Kirby, Bridget Stice, Todd Thrift, Lindsey Wiggins, and João Bittar

Dealing with death losses on the ranch can be disheartening. After all, a beef cattle operation’s success is measured in pounds of live weight sold. This publication discusses ways to determine causes of death in a beef cattle operation. Written by Taylor Davis, Lauren Butler, Christa Kirby, Bridget Stice, Todd Thrift, Lindsey Wiggins, and João Bittar, and published by the Veterinary Medicine—Department of Large Animal Clinical Sciences, UF/IFAS Extension, October 2023.

What is the Bronson Animal Disease Diagnostic Laboratory (BADDL), and what can BADDL do for cattle producers?

Lauren Butler, Christa Kirby, Bridget Stice, Todd Thrift, Lindsey Wiggins, and João Bittar

For years, cattle producers have acted as unofficial researchers and detectives. As caregivers to domesticated animals, cattle producers and veterinarians sometimes need more pieces of information to solve a puzzle. This publication discusses the Bronson Animal Disease Diagnostic Laboratory (BADDL), which exists to help with more difficult diagnoses. Written by Lauren Butler, Christa Kirby, Bridget Stice, Todd Thrift, Lindsey Wiggins, and João Bittar, and published by the Veterinary Medicine—Department of Large Animal Clinical Sciences, UF/IFAS Extension, October 2023.

Johne’s Disease in Beef Cattle

Bridget Stice, Lindsey Crum, Todd A. Thrift, andJoão H. Bittar

The economic cost of Johne’s disease is substantial due to delayed establishment of pregnancy and even failure during the breeding season, reduced weaning weights, and loss or culling of cows before operations have recouped production costs. This publication aims to inform ranchers, ranch workers, Extension agents, cattle owners, livestock-agricultural students, and interested residents about important Johne’s disease facts. Written by Bridget Stice, Lindsey Wiggins, Todd Thrift, and João Bittar, and published by the Veterinary Medicine—Department of Large Animal Clinical Sciences, UF/IFAS Extension, October 2023.

Livestock Vaccines: Principles, Types, and Important Factors to Consider

Juan M. Campos Krauer and João H. J. Bittar

This publication presents information on the basic mechanisms and types of livestock vaccines available, as well as a few best practices for vaccine management. This information can help improve your herd health and success in your next herd vaccination. Written by Juan M. Campos Krauer and João H. J. Bittar, and published by the Veterinary Medicine—Department of Large Animal Clinical Sciences, UF/IFAS Extension, January 2024.