Browsing Facultad de Ciencias de la Salud by Author "Maquivar, M."
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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
Estrada, Sandra; Galindo, J.; Galina, C. S.; Molina, R.; Contreras, D. A.; Maquivar, M. (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 ... -
Effect of ruminally protected Methionine on the productive and reproductive performance of grazing Bos indicus heifers raised in the humid tropics of Costa Rica
Alonso, L.; Maquivar, M.; Galina, C. S.; Mendoza, G. D.; Guzmán, A.; Villareal, M.; Molina, R; Estrada, Sandra (Springer Science + Business Media B.V., 2008-03-11)With the objective of evaluating the effect of methionine supplementation prior to a breeding program, thirty one heifers (Bos taurus x Bos indicus) were used averaging 386 ± 29 days of age and a mean body weight of ... -
Evaluation of early embrionic development after natural mating using ultrasonography in bos indicus cows in the humid tropics of Costa Rica
Chávez, D.; Maquivar, M.; Galina, C. S.; Galindo, J.; Molina, R.; Molina-Montero, R.; Estrada, Sandra (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 ... -
Ultrasonographic screening of embryo development in cattle (Bos indicus) between days 20 and 40 of pregnancy
Rosiles, V.A.; Galina, C.S.; Maquivar, M.; Molina, R.; Estrada, Sandra (Elsevier, 2005-03-09)Through a transrectal ultrasonography (Aloka SSD 500 microplus equipment, linear transducer of 7.5 MHz) a total of 267 observations were performed in a group of 50 females mainly Bos indicus, raised under humid tropical ...