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EVALUATION OF THE FREEZABILITY OF THE BOVINE EPIDIDYMIS TAIL SPERM WITH THE ADD...
Cruz, Gabriela Passamani da; Zanfrilli dos Santos, Ana Paula; Freitas Guaitolini, Carlos Renato de; Denck Tramontin, Marcio LuizMade available in DSpace on 2021-06-25T15:01:01Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-03-01; BACKGROUND: The cryopreservation and recovery of epididymis tail sperm is an important biotechnology dependent on the composition of the freezing medium. OBJETIVE: To evaluate the effect of melatonin, added to commercial freezing medium extender, on the kinetics and viability of bovine epididymis tail s...
Reproductive efficiency Nellore and crossbred cows submitted to administration ...
Valero, Alan Gabriel; Guaitolini, Carlos Renato de Freitas; Crespilho, Andre Maciel; Cruz, Gabriela Passamani da; Tramontin, Marcio Luiz DenckThis study aimed to evaluate the influence of medroxyprogesterone acetate (MGA) supplementation between the 13th and 20th day after Fixed-Time-Artificial Insemination (FTAI), on the conception and gestation rates of Nellore and crossbred cows (Nellore x Angus), pluriparous and lactating. For the study, 349 Nellore cows and 270 crossbred cows were selected, distributed into 1) group G1 (n=176): Nellore cows subm...