Author Search Results

1

Portal de Revistas TEC

artículo original

Programa de Computadora para un estudio ambiental en Guanacaste, Costa Rica

by Chacón S, Jorge, Chacón S, Bernardo, Mata J, Alfonso

Published 2025

Institution: Instituto Tecnológico de Costa Rica

Repositorio: Portal de Revistas TEC

2

Repositorio UNA

vídeo

The infrared thermography of the scrotal surface in the long scrotum bull. Preliminary comparisons to normal scrotum sound for breeding bulls

by Chacón Calderón, Jorge, Sadewater, Laura, Chacón Obando, Andrés, Vargas Leitón, Bernardo

Published 2023

Institution: Universidad Nacional de Costa Rica

Repositorio: Repositorio UNA

3

Repositorio UNA

artículo

Assessment of sperm morphology in Zebu bulls, under field conditions in the tropics

by Chacón Calderón, Jorge

Published 2001

Institution: Universidad Nacional de Costa Rica

Repositorio: Repositorio UNA

4

Repositorio UNA

artículo

Seroprevalence and detection of bovine leukosis virus in semen from breeding bulls in Costa Rica

by Chacón Calderón, Jorge, Leiva, Roberto, ROMERO-ZUÑIGA, JUAN JOSÉ, Navarro, Leonel, Dolz, Gaby

Published 2023

Institution: Universidad Nacional de Costa Rica

Repositorio: Repositorio UNA

5

Repositorio UNA

artículo

Tail stump sperm defect as a cause of sterility in an indobrasil (Bus indicus) bull

by Rodríguez-Martínez, H., Chacón Calderón, Jorge

Published 1998

Institution: Universidad Nacional de Costa Rica

Repositorio: Repositorio UNA

6

Repositorio UNA

artículo

Deferred bulls: are cycles per conception and pregnancy rate determined by the type of spermiogramme deviation under natural mating?

by Navarro, Leonel, Chacón Calderón, Jorge

Published 2016

Institution: Universidad Nacional de Costa Rica

Repositorio: Repositorio UNA

7

Repositorio UNA

artículo

Thermographic scrotal pattern in sound for breeding zebu bulls extensively managed in tropical Costa Rica

by Chacón-Obando, A., Chacón Calderón, Jorge, Vargas, Bernardo

Published 2016

Institution: Universidad Nacional de Costa Rica

Repositorio: Repositorio UNA

8

Repositorio UNA

ponencia

Heritability and genetic correlations for scrotal circumference at different ages in Brahman bulls raised under tropical conditions

by Víquez, C., Chacón Calderón, Jorge, Vargas Leitón, Bernardo

Published 2018

Institution: Universidad Nacional de Costa Rica

Repositorio: Repositorio UNA

9

Repositorio UNA

artículo

Seasonal variations in testicular consistency, scrotal circumference and spermiogramme parameters of extensively reared Brahman (Bos indicus) bulls in the tropics

by Pérez, E., Rodríguez-Martínez, H., Chacón Calderón, Jorge

Published 2002

Institution: Universidad Nacional de Costa Rica

Repositorio: Repositorio UNA

10

Portal de Revistas UNA

texto

Presencia serológica de Besnoitia besnoiti, Toxoplasma gondii, Coxiella burnetii y Chlamydia abortus en hatos bovinos de Costa Rica

by Fallas-Elizondo, Daisy, Chacón Calderón, Jorge, Romero-Zuñiga, Juan Jose, Dolz, Gaby

Published 2018

Institution: Universidad Nacional de Costa Rica

Repositorio: Portal de Revistas UNA

11

Repositorio UNA

póster de congreso

Ionic concentration in the fluid collected from testis and epididymis in zebu bulls

by Barrantes, Karla, Jimenez, Andrea, Chacón Calderón, Jorge, Vargas Leitón, Bernardo, Alfaro Solís, Rosa, Navarro Rojas, Leonel

Published 2016

Institution: Universidad Nacional de Costa Rica

Repositorio: Repositorio UNA