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Author(s): CECCHIN, D.; CAMPOS, A. T.; YANAGI JUNIOR, T.; PIRES, M. de F. A.; LOURENÇONI, D.; SOUSA, F. A.; CECCHIN, D.

Abstract: The objective of the present study was to evaluate the behavior of dairy cows confined in free-stall systems. Eighteen Holstein cows were evaluated in this research. The following frequencie... ...

Repository: BDPA     Publication year: 2015

Author(s): CASTRO, N. A. de; LEONARDI, C. E. P.; SINGH, J.; SCHNEIDER, A.; GONÇALVES, P. B.; OLIVEIRA, F. C.; D'ÁVILA, C. A.; FERREIRA, R.; GASPERIN, B. G.; MOREIRA, E. M.; ANDRADE, J. de S.; PFEIFER, L. F. M.

This study aimed to evaluate the role of prostaglandin F2a (PGF) on ovulation. In Experiment 1, cows were randomly allocated to two treatments to receive 150 ug of d-Cloprostenol (PGF Group, n = 12) o... ...

Repository: BDPA     Publication year: 2021

Author(s): PFEIFER, L. F. M.; GASPERIN, B. G.; CESTARO, J. P.; SCHNEIDER, A.

The aims of this study were (1) to establish an optimal cut-off point for evaluating the effect of the preovulatory follicle (POF) diameter in timed AI (TAI) programs, and (2) to evaluate the effect o... ...

Repository: BDPA     Publication year: 2022

Author(s): DALTRO, D. dos S.; SILVA, M. V. G. B.; GAMA, L. T. da; MACHADO, J. D.; KERN, E. L.; CAMPOS, G. S.; PANETTO, J. C. do C.; COBUCI, J. A.

The objective of this work was to evaluate the effects of breed and heterosis on the estimates of genetic parameters of 305-day milk yield (305MY), by fitting milk yield data to the Wood, Mixed Log, M... ...

Repository: BDPA     Publication year: 2020

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... ...

Repository: BDPA     Publication year: 2012

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... ...

Repository: BDPA     Publication year: 2023

Author(s): NUNES, V. R. R.; MOREIRA, E. M.; SILVA, G. M. da; NEVES, P. M. A.; SOUZA, V. L. de; ANDRADE, J. de S.; SANTOS, I. A. P.; PFEIFER, L. F. M.

Impacto da suplementação na resposta ovariana de vacas Girolando durante a estação seca e chuvosa.

Repository: BDPA     Publication year: 2019

Author(s): CAVALI, J.; ASSIS, A. A. R. de; PORTO, M. O.; SALES, M. F. L.; OLIVEIRA JÚNIOR, J. S.; FERREIRA, E.; ABATI, E. C.; LAZARI, T. A.

The milk production of beef cows has a direct influence on the weight gain of their calves. The use of supplements that can increase milk production of beef cows has been studied in recent years, aimi... ...

Repository: BDPA     Publication year: 2017

Author(s): CARDOSO, C. J. T.; LIMA, A. C. B. de; SILVA, W. A. L. da; SOUZA-CÁCERES, M. B.; PEREIRA, D. M.; OLIVEIRA, M. V. M. de; NOGUEIRA, E.; MELO-STERZA, F. de A.

ABSTRACT: Linseed is distinguished by its composition of fatty acids, which are rich in unsaturated acids, and by the slow release of oil in the rumen, consequently providing a greater amount of lipid... ...

Repository: BDPA     Publication year: 2019

Author(s): VICENTE, W.; BERGAMASCHI, M. A. C. M.; VICENTE, W. R. R.; BARBOSA, R. T.; MACHADO, R.; BARUSELLI, P. S.; ALENCAR, M. M. de; BINELLI, M.

This trial aimed to test eCG as an enhancer of the luteal function, as well as to evaluate the ability of eCG to delay or prevent luteolysis mechanism. A group of 32 mature, synchronized (CRESTAR@), l... ...

Repository: BDPA     Publication year: 2006

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