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Assessment of sperm morphology in Zebu bulls, under field conditions in the tropics
(Blackwell, 2001)
Sperm morphology was studied in 302 extensively managed Zebu bulls (aged 1.5-9 years), classified as sound (n = 166) or unsound (n = 136) for breeding, under field conditions in the dry tropics of Costa Rica. Single semen ...
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 ...