Browsing Facultad de Ciencias de la Salud by Subject "ZEBU"
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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 ... -
Backfat thickness does affect the restoration of ovarian activita postpartum in different breeding programs in zebu cattle
(Frontiers in Veterinary Science, 2021-12-09)The backfat thickness (BFT) was used to forecast the onset of ovarian activity and predict the calf growth. Eighty Brahman cows with their calves were allocated in two groups of 40 distributed in 4 months according to ... -
Effect of an energy supplementation, weaning and oestrous synchronisation on ovarian activity and ovulation in early postpartum primiparous Bos indicus cows raised in the tropics of Costa Rica
(American Society for Microbiology., 2015-09-07)To evaluate the effect of an energy supplementation, 26 postpartum Bos indicus cows were assigned either to receive an energy diet supplementation (n ≤ 11, SSD) or no supplementation (n ≤ 15, NSSD). Cows in the SSD treatment ... -
Evaluation of early embrionic development after natural mating using ultrasonography in bos indicus cows in the humid tropics of Costa Rica
(Springer, 2008)Fifty-eight nursing Zebu cows averaging 5922 days postpartum were used to evaluate the early embryonic development by ultrasound under a natural mating system (bulls A to F). Three consecutive mating periods of 21 days ... -
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 ... -
Utilidad de la palpación rectal y la ecografía transrectal en el diagnóstico de gestación del ganado cebú en el trópico húmedo de Costa Rica
(Revista Cientifica de la Facultad de Ciencias Veterinarias de la Universidad del Zulia, 2011-10-13)The diagnostic efficacy of rectal palpation (RP) was compared to ecography (EG) in a natural mating program of Zebu cattle under Costa Rican tropical conditions. Grazing and lactating Bos indicus females, 98 each year (2005 ...