Angela M. Gonella-Diaza

Specialist

Angela M. Gonella-Diaza
0000-0001-7446-3831

Specialist

assistant professor, DVM, MSc., Ph.D., reproductive physiology, Department of Animal Sciences, UF/IFAS North Florida Research and Education Center, Marianna, FL

NFREC Profile

Publications

Forage-Based Heifer Development Program for North Florida

José Dubeux, Nicolas DiLorenzo, Kalyn Waters, andJane Griffin
Other Contacts: Angela M. Gonella-Diaza

A UF/IFAS numbered peer reviewed Fact Sheet for Commercial audience(s). Published by Animal Systems

Practical Uses for Ultrasound in Managing Beef Cattle Reproduction

Mario Binelli, Thiago Martins, John Arthington, Kalyn Waters, Vitor Mercadante, Philipe Moriel, andAngela M. 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.

thumbnail for publication: Calculating Reproductive Performance in Beef Operations: The University of Florida Beef Herds’ 2019 Breeding Season

Calculating Reproductive Performance in Beef Operations: The University of Florida Beef Herds’ 2019 Breeding Season

Mario Binelli, Angela M. Gonella-Diaza, Thiago Martins, Cecilia C. Rocha, Felipe A. C. C. Silva, Federico Tarnonsky, Sergio Roskopf, Owen Rae, Danny Driver, Nicolas DiLorenzo, Jose Dubeux, and David Thomas

This publication reviews the basic calculations of reproductive performance and reports the reproductive performance of two University of Florida beef herds. Written by Mario Binelli, Angela M. Gonella-Diaza, Thiago Martins, Cecilia C. Rocha, Felipe A. C. C. Silva, Federico Tarnonsky, Sergio Roskopf, Owen Rae, Danny Driver, Nicolas DiLorenzo, Jose Dubeux, and David Thomas, and published by the UF/IFAS Department of Animal Sciences, May 2021.

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.

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.

Tips for Successful Artificial Insemination in Beef Cattle

Daniela Cortés-Beltrán and Angela Gonella

This publication provides tips on how to perform successful artificial insemination in a beef cattle operation. Written by Daniela Cortés-Beltrán 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.

Tips para la inseminación artificial en bovinos

Daniela Cortés-Beltrán andAngela M. Gonella-Diaza

Esta publicación está dirigida a los productores de ganado bovino, trabajadores agrícolas y agentes de Extensión, con el propósito de proporcionar información sobre cómo realizar una IA exitosa en bovinos. Este documento, AN380-Span, es uno de una serie del Department of Animal Sciences, UF/IFAS Extension. La publicación original es de marzo 2024.

Understanding Parent Verification and Its Uses in Beef Cattle

Felipe A. C. C. Silva, Mark Mauldin, and Angela M. Gonella-Diaza

This publication aims to provide guidance on how to perform successful samples collection and shipping for parent verification. Written by Felipe A. C. C. Silva, Mark Mauldin, and Angela M. Gonella-Diaza, and published by the UF/IFAS Department of Animal Sciences, April 2024.

Pregnancy Diagnosis on Beef Cattle Today

Maria Camila Lopez Duarte, Kalyn Waters, Nick Simmons, and Angela Gonella

This publication is directed to beef producers, farmworkers, and Extension agents with the purpose of providing information regarding current pregnancy diagnosis methods for beef cattle. Written by Maria Camila Lopez Duarte, Kalyn Waters, Nick Simmons, and Angela Gonella and published by the UF/IFAS Department of Animal Sciences, May 2024.

Diagnóstico de preñez en ganado de carne

Maria Camila Lopez Duarte, Kalyn Waters, Nick Simmons y Angela Gonella

Este documento está dirigido a productores de ganado de carne, trabajadores del campo y agentes de Extensión con el propósito de brindar información sobre los métodos de detección y diagnóstico de preñez disponibles en la actualidad. Este documento es AN394-Span, una publicación del Department of Animal Sciences, UF/IFAS Extension. Fecha original de la publicación: enero 2025.

Estrus Synchronization Protocols for Natural Service

Daniella C. Heredia, Angela M. Gonella-Diaza, andKalyn Waters

This publication is intended for producers interested in improving the reproductive efficiency and performance of their cows. This publication explains the process of estrus synchronization and the protocols that can be used for natural service synchronization. Written by Daniella Heredia, Angela Gonella-Diaza, and Kalyn Waters, and published by the UF/IFAS Department of Animal Sciences, February 2025.

Protocolos de sincronización de celo para servicio natural

Daniella C. Heredia, Angela M. Gonella-Diaza, andKalyn Waters

Las operaciones de cría de ganado dependen de la eficiencia reproductiva. Existen diferentes tecnologías reproductivas que pueden ayudar a incrementar la productividad de las operaciones de cría. El uso de tecnologías para manejo reproductivo permitirá a los productores concentrar la concepción al inicio de la temporada de monta. Como consecuencia, los partos se concentrarán al inicio de la temporada de parición y se producirá un grupo más homogéneo de terneros. Esta publicación está dirigida a productores que estén interesados en mejorar la eficiencia reproductiva y el desempeño de sus vacas. Aquí se explica el proceso de sincronización del celo y los protocolos que se pueden utilizar para el servicio natural en los Estados Unidos. Tenga en cuenta que, si usted se encuentra radicado en otro país, es posible que los protocolos de sincronización y las hormonas disponibles en su región no sean los mismos que se describen en esta publicación.

Reproductive Efficiency: The Economics of Calving Intervals and Distributions

Angela M. Gonella-Diaza, Kalyn Waters, andHannah Baker

This publication aims to discuss the economic impact of reproductive efficiency in beef cattle, increase awareness and knowledge of the importance of an efficient cow herd in maximizing profitability, and promote confidence in discussing this topic with clientele. The intended audience is cattle producers and Extension agents. Written by Angela M. Gonella-Diaza, Kalyn Waters, and Hannah Baker, and published by the UF/IFAS Department of Animal Sciences, October 2026.

Angela M. Gonella-Diaza 0000-0001-7446-3831

Specialist

Publications

Forage-Based Heifer Development Program for North Florida

Practical Uses for Ultrasound in Managing Beef Cattle Reproduction

Calculating Reproductive Performance in Beef Operations: The University of Florida Beef Herds’ 2019 Breeding Season

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

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 2—Breeding Practices/Reproductive Technologies

Tips for Successful Artificial Insemination in Beef Cattle

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

Tips para la inseminación artificial en bovinos

Understanding Parent Verification and Its Uses in Beef Cattle

Pregnancy Diagnosis on Beef Cattle Today

Diagnóstico de preñez en ganado de carne

Estrus Synchronization Protocols for Natural Service

Protocolos de sincronización de celo para servicio natural

Reproductive Efficiency: The Economics of Calving Intervals and Distributions

Angela M. Gonella-Diaza
0000-0001-7446-3831