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 Author(s): TOMAZI FILHO, J.; PFEIFER, L. F. M.; HOEFLE, C. A.; RODRIGUES, M. F.; FERREIRA, R. The objectives of this study were to determine the effect of calving to timed artificial insemination (C-TAI) interval on fertility of Bos taurus and Bos indicus cows and to determine the best C-TAI i... ... |
 Author(s): PFEIFER, L. F. M.; ANDRADE, J. de S.; MOREIRA, E. M.; SILVA, R. R. da; NEVES, P. M. A.; SILVA, G. M. da S.; LEMOS, I. C.; SCHNEIDER, A. The aim of this study was to evaluate the uterine health and fertility of postpartum beef cows subjected to timed AI (TAI) protocols at different days from calving. Lactating Nelore cows (Bos indicus;... ... |
 Author(s): MORAES, J. C. F.; JAUME, C. M.; SOUZA, C. J. H. de
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 Author(s): PFEIFER, L. F. M.; LEAL, S. del C. B. de S.; SCHNEIDER, A.; SCHMITT, E.; CORRÊA, M. N. The objective of this study was to evaluate the influence of the ovulatory follicle diameter on the reproductive performance of lactating beef cows subjected to low progesterone fixed-time artificial... ... |
 Author(s): SILVA, S. A.; MONDADORI, R. G.; NOLETO, G. S.; BARBOSA, I. P.; GONÇALVES, R. L.; GASPERIN, B. G.; ROVANI, M. T.; PAZ, E. F.; GOMES, L. S.; PFEIFER, L. F. M. Two experiments were performed to evaluate the effects of GnRH treatment on the fertility of suckled Nelore beef cows treated with an estradiol/progesterone (E2/P4)-based protocol for timed artificial... ... |
 Author(s): PFEIFER, L. F. M.; BARBOSA, I. P.; PIONTE, P.; SIQUEIRA, L. G. B. This study aimed to evaluate the efficiency of a body condition score (BCS) assessment device (BCAD) to identify cows with an adequate BCS and, presumably, a higher fertility when subjected to timed a... ... |
 Author(s): RAMOS, P. V. B.; SILVA, F. F. e; SILVA, L. O. C. da; SANTIAGO, G. G.; MENEZES, G. R. de O.; VIANA, J. M. S.; TORRES JUNIOR, R. A. de A.; GONDO, A.; LUIZ F. BRITO Cow stayability plays a major role on the overall profitability of the beef cattle industry, as it is directly related to reproductive efficiency and cow's longevity. Stayability (STAY63) is usually d... ... |
 Author(s): RAMOS, P. V. B.; SILVA, L. O. C. da; PEREZ, B. da C.; TORRES JUNIOR, R. A. de A.; MENEZES, G. R. de O.; ALVARENGA, L. C.; TORRES FILHO, R. de A.; DUARTE, M. de S.; SILVA, F. F. e
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 Author(s): DINIZ, J. V. A.; DELL'AQUA JUNIOR, J. A.; OBA, E.; FREITAS, R. R. de; PEIXOTO, R. M.; SILVA, L. O.; MAIA, G. F. N. M.; CARVALHO, B. P.; LOUREIRO, B.; SATRAPA, R. A. Progesterone (P4) is essential for embryonic development and maintenance of pregnancy when deficiency causes early embryonic loss. In this study, we investigated the ability of hormonal supplementatio... ... |
 Author(s): CORDEIRO, D. A. G.; SILVA, L. G. da; MACHADO, J. V. B.; SANTOS, M.; SANTANA, T. dos S.; COSTA, W. C. C. da; FERREIRA, L. C. L; NOGUEIRA, E.; PFEIFER, L. F. M.; STERZA, F. de A. M. The aim of this study was to evaluate the influence of the FTAI-calving interval, according to animal category, on the fertility of beef cows. Early Nelore primiparous cows (n = 879; 24 ± 3.3 months;... ... |
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