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Abstract

The relationship between the indices of thermal comfort and internal temperature in lactating cows was evaluated in Rondônia, western Amazonia in a 2×2 crossover trial carried out with eight Girolando cows, 1/2 Holstein × 1/2 Gyr (n=4) and 3/4 Holstein × 1/4 Gyr (n=4), grazing palisade grass...

Author(s)
Carvalho, G. A. de; Salman, A. K. D.; Cruz, P. G. da; Silva, F. R. F. da; Halfen, J.; Schmitt, E.
Publisher
Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
Citation
Acta Amazonica, 2018, 48, 3, pp 191-196
AbstractFull Text

Trees in the production systems can effectively reduce hot weather-induced stress in the Brazilian Midwest. High temperatures cause changes in animals daily routine, and trees into pastures can promote benefits. The aim of this research was to evaluate the behavior of dairy heifers in silvopastoral ...

Author(s)
Mello, A. C. T. de; Carnevalli, R. A.; Shiratsuchi, L. S.; Carneiro e Pedreira, B.; Lopes, L. B.; Xavier, D. B.
Publisher
Centro de Ciências Rurais, Universidade Federal de Santa Maria, Santa Maria, Brazil
Citation
Ciência Rural, 2017, 47, 2, pp e20160316
AbstractFull Text

This study aimed to contribute to increased knowledge of the potential of new cultivars to be used in dairy cattle grazing, comparing the milk yield and composition of Holstein cows (n=20) subjected to rotational grazing with palisade grass (Brachiaria brizantha Marandu) and HD364 grass (Brachiaria ...

Author(s)
Demski, J. B.; Miranda, M. S. de; Arcaro Junior, I.; Toledo, L. M. de; Gimenes, F. M. de A.; Ambrósio, L. A.; Rosini, E. C.
Publisher
Faculdade de Medicina Veterinária e Zootecnia, Universidade Estadual Paulista, Botucatu, Brazil
Citation
Veterinária e Zootecnia, 2013, 20, 2, Supl. 1, pp 70-71
AbstractFull Text

The aim of this study was to evaluate the effects of protein-energy or mineral supplementation on the digestibility and productive performance of steers in the post-weaning phase on pasture during the wet-dry season transition. Twenty-two Holstein-Zebu crossbred steers with an average initial...

Author(s)
Brandão, R. K. C.; Carvalho, G. G. P.; Silva, R. R.; Dias, D. L. S.; Guimaraes, J. O.; Lins, T. O. J. D'A.; Pereira, M. M. S.; Carvalho, V. M.; Lisboa, M. M.; Barroso, D. S.; Rufino, L. M. A.
Publisher
Pakistan Agricultural Scientists Forum, Lahore, Pakistan
Citation
JAPS, Journal of Animal and Plant Sciences, 2016, 26, 6, pp 1582-1588
Abstract

Brazil is an agricultural country, with 190 Mha of pastures sustaining 209 million cattle. Fewer than 10% of the cattle are fattened in feedlots, whereas cattle reared on pastures have a competitive advantage for export, eliminating the risks presented by the mad cow disease (bovine spongiform...

Author(s)
Jank, L.; Barrios, S. C.; Valle, C. B. do; Simeão, R. M.; Alves, G. F.
Publisher
CSIRO, Collingwood, Australia
Citation
Crop & Pasture Science, 2014, 65, 11, pp 1132-1137
Abstract

A study of mineral deficiencies was performed in lactating cows from dairy herds belonging to 13 farms of Rondon do Pará, state of Pará, Brazil. We determined the levels of phosphorus (P) in the bone and levels of copper (Cu), cobalt (Co), selenium (Se) and zinc (Zn) in the liver of 47 dairy cows...

Author(s)
Bomjardim, H. A.; Oliveira, C. M. C.; Silveira, J. A. S.; Silva, N. S.; Duarte, M. D.; Faial, K. C. F.; Brito, M. F.; Barbosa, J. D.
Publisher
Colégio Brasileiro de Patologia Animal, Rio de Janeiro, Brazil
Citation
Pesquisa Veterinária Brasileira, 2015, 35, 5, pp 409-416
Abstract

The objective of this study was to evaluate, in rainy season, the effect of protein complementation during dry season on Nellore primiparous heifers. We used 39 primiparous heifers, with an average age of 24-36 months, reared on Brachiaria decumbens and Brachiaria Brizantha pasture, for 205 days....

Author(s)
Nogueira, A. P. C.; Alvarenga, P. B. de; Ferreira, I. C.; Rios, M. P.; Silva, C. R.
Publisher
Universidade Federal de Goiás, Escola de Veterinária, Goiânia, Brazil
Citation
Ciência Animal Brasileira, 2015, 16, 3, pp 331-342
Abstract

The aim of this work was to analyse the population of aerobe and anaerobe facultative Gram-negative rod-shaped in the ruminal fluid of dairy cattle and calves fed with different sources of tropical forage. Samples of ruminal fluid were collected from 30 cows fed with sorghum silage, 32 cows fed...

Author(s)
Freitas, C. E. S.; Almeida, P. N. M.; Duarte, E. R.; Abrão, F. O.; Careli, R.; Geraseev, L. C.
Publisher
Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile
Citation
Archivos de Medicina Veterinaria, 2014, 46, 3, pp 457-462
AbstractFull Text

The objective of this experiment was to verify the effect of nutritional management that alternates periods of energy/protein restriction and refeeding of grazing crossbred heifers during their prepuberty on the hormonal profile and blood parameters. The study was conducted at Princesa do Mateiro...

Author(s)
Trindade Júnior, G.; Silva, R. R.; Carvalho, G. G. P. de; Silva, F. F. da; Negrão, J. A.; Barroso, D. S.; Dias, D. L. S.; Costa, P. B.
Publisher
Universidade Estadual de Londrina, Londrina, Brazil
Citation
Semina: Ciências Agrárias (Londrina), 2015, 36, 3, pp 1481-1494
AbstractFull Text

The objective of this study was to evaluate the correlation between intake and ingestive behavior of crossbred heifers in grazing tropical. The experiment was conducted on the Princesa do Mateiro Farm, in the city of Ribeirão do Largo, Bahia. A total of 20 heifers with genetic makeup 5/8 dairy...

Author(s)
Santana Junior, H. A.; Silva, R. R.; Carvalho, G. G. P.; Silva, F. F.; Trindade Junior, G.; Pinheiro, A. A.; Rodrigues, E. S. O.; Abreu Filho, G.; Santana, E. O. C.; Mendes, F. B. L.
Publisher
Universidade Estadual de Londrina, Londrina, Brazil
Citation
Semina: Ciências Agrárias (Londrina), 2013, 34, 6, pp 2963-2976

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