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João H. Bittar

Specialist

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João H. Bittar

Orcid ID0000-0002-6440-6785

Specialist

assistant professor and beef cattle Extension specialist, DVM, MSc., PhD, Department of Large Animal Clinical Sciences, UF College of Veterinary Medicine

Veterinary Medicine Profile

Publications

thumbnail for publication: Johne’s Disease in Beef Cattle

Johne’s Disease in Beef Cattle

Bridget Stice, Lindsey Wiggins, Todd Thrift, and João 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.

thumbnail for publication: Livestock Vaccines: Principles, Types, and Important Factors to Consider

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.

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

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

Angela Gonella-Diaza, Oscar Alejandro Ojeda-Rojas, João Bittar, and Mario 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.

thumbnail for publication: An Overview of the Bovine Leukemia Virus

An Overview of the Bovine Leukemia Virus

Kaitlyn K. Renegar, Ameer A. Megahed, Ahmadreza Mirzaei, and João H. Jabur Bittar

This publication discusses bovine leukemia virus and its prevalence, economic implications, transmission, clinical signs, diagnosis, treatment, prevention, and control. Written by Kaitlyn K. Renegar, Ameer A. Megahed, Ahmadreza Mirzaei, and João H. Jabur Bittar, and published by the Veterinary Medicine—Large Animal Clinical Sciences Department, UF/IFAS Extension, May 2023.

thumbnail for publication: A Research-Based Summary on Trace Minerals for Cattle

A Research-Based Summary on Trace Minerals for Cattle

João H. Jabur Bittar and Roberto A. Palomares

Producers can utilize mineral supplementation to improve cattle production and herd health, which has the potential to reduce antibiotic usage. This publication presents a summary on trace minerals for cattle. Written by João H. Jabur Bittar and Roberto A. Palomares, and published by the UF/IFAS Veterinary Medicine—Large Animal Clinical Sciences Department, October 2021.

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

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

João H. Bittar, Mario Binelli, and Angela 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.

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

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.

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

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.

thumbnail for publication: Tips on Determining the Cause of Death in the Beef Cattle Operation

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.

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

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.