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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): 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): 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

Author(s): PFEIFER, L. F. M.; CASTRO, N. A. de; CESTARO, J. P.; SCHNEIDER, A.

This study evaluated the effect of a prostaglandin F2a (PGF) analogue as an ovulatory stimulus in dairy cows and buffaloes raised in the Amazon biome. To this end, three experiments were performed in... ...

Repository: BDPA     Publication year: 2021

Author(s): PORTO, M. O.; ASSIS, A. A. R. de; CAVALI, J.; SALES, M. F. L.; FERREIRA, E.; OLIVEIRA JÚNIOR, J. S. de; SOUZA, P. de J.; ANDRADE, R. A.

Protein-energy supplementation of beef cows has been scarcely applied in Brazil. However, the use of ruminant fermentation modulating additives has become a viable alternative in the Supplementation o... ...

Repository: BDPA     Publication year: 2017

Author(s): CARVALHEIRA, L. de R.; WENCESLAU, R. R.; RIBEIRO, L. dos S.; CARVALHO, B. C. de; BORGES, A. M.; CAMARGO, L. S. de A.

The present trial evaluated the effect of crossbred composition and Temperature and Humidity Index (THI) on vaginal temperature (VT) of Girolando dairy cows maintained under tropical pasture during wa... ...

Repository: BDPA     Publication year: 2021

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