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Breeding soundness evaluation of extensively managed bulls in Costa Rica
(Elsevier, 1999-02-17)
This paper describes the results of single breeding soundness evaluations (BSE) in 898 Bos indicus, Bos taurus and B. indicus x B. taurus bulls, 1 to 12 yr. old, extensively reared in different climatic regions of Costa ...
Deferred bulls: are cycles per conception and pregnancy rate determined by the type of spermiogramme deviation under natural mating?
(Elsevier, 2016)
Deferred bulls undergo clinical deviations that could
be transitory or have an uncertain potential fertility output. Data in Costa Rica showed no significant differences
in conception rate (CR) between sound vs. deferred ...
Morphological features of the seminiferous and cauda Epididymides epithelia of breeding zebu bulls with normal and decreased testicular consistency
(The Society for Reproduction and Development, 1999)
The fine morphology of the testes and epididymes collected from breeding Zebu (Bos indicus) bulls with normal or decreased testicular consistency (TC) at clinical palpation was studied. The ultrastructure of testicles with ...
Tricomoniasis y campilobacteriosis genital bovina: diagnóstico e importancia en explotaciones ganaderas en el trópico costarricense.
(Universidad Nacional, Costa Rica, 2022)
El presente video ha sido elaborado por el Programa de Investigación en Andrología Animal Aplicada de la Escuela de Medicina Veterinaria, Universidad Nacional (UNA), Heredia-Costa Rica, a partir de recursos digitales ...
Seasonal variations in testicular consistency, scrotal circumference and spermiogramme parameters of extensively reared Brahman (Bos indicus) bulls in the tropics
(Elsevier, 2002-07)
Twenty-five extensively bred mature Brahman (Bos indicus) breeding bulls were clinically examined and electroejaculated at monthly intervals for 13 months to study whether testicular consistency (TC), scrotal circumference ...
Tail stump sperm defect as a cause of sterility in an indobrasil (Bus indicus) bull
(Blackwell Wissenschafts-Verlag, Berlin, 1998)
The first known case of an Indobrasil (BOA indicus) bull, with a
frequency of 100% of the specific sperm abnormality, known
as ‘tail stump sperm defect’ is reported. A 5-year old bull was
located as a breeding sire in ...
Thermographic scrotal pattern in sound for breeding zebu bulls extensively managed in tropical Costa Rica
(Animal Reproduction Science, 2016-06)
Infrared thermography (IR) is relatively a novel proce-
dure in animal andrology for studying bull’s scrotal thermal
pattern. The accuracy of this technique lies onto camera’s
performance and operator skills, and ...
Factores ambientales, genéticos y de manejo que afectan la circunferencia escrotal y el peso corporal de toretes cebú en Costa Rica
(Universidad Nacional, Costa Rica, 2018-03)
En la presente tesis, se analizó el efecto de factores ambientales y genéticos sobre la
circunferencia escrotal (CE) y el peso corporal (PC) en toretes cebú. En un primer estudio se
determinó el efecto de los factores ...