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Abstract

Random regression models (RRM) differ in terms of the functions used to describe the shape of lactation curves. The aim was to compare random regression models under different functions to describe the lactation curves from Holstein cows in herds of the state of Minas Gerais. A database of 28,118...

Author(s)
Azevedo Junior, J.; Gonçalves, T. de M.; Souza, J. C. de; Rodriguez, M. A. P.; Costa, C. N.; Carvalheira, J. G. V.
Publisher
Canadian Center of Science and Education, Toronto, Canada
Citation
Journal of Agricultural Science (Toronto), 2018, 10, 2, pp 1-14
Abstract

This study compared the health status of Curraleiro cattle and other breeds (Nellore, Girolando, Guzera, and Caracu) for toxoplasmosis and neosporosis screening against anti-Neospora caninum and anti-Toxoplasma gondii antibodies, respectively. We used 119 female bovines of Curraleiro, Guzera,...

Author(s)
Santin, A. P. I.; Juliano, R. S.; Silva, A. C.; Oliveira, V. S. F. de; Junqueira-Kipnis, A. P.; Brito, W. M. E. D. de; Fioravanti, M. C. S.
Publisher
Universidade Federal de Goiás, Escola de Veterinária, Goiânia, Brazil
Citation
Ciência Animal Brasileira, 2017, 18, pp e-44649
Abstract

This study aimed to characterize the profile of milk cattle farmers of the Northwest region of Minas Gerais State regarding the use of artificial insemination (AI) and see the most relevant factors in the perception of farmers for the adoption process of AI. From January to April 2014, 97 milk ...

Author(s)
Cunha, J. C. da; Araújo, I. C. S. de; Resende Filho, N. J.; Carvalho, G. R. de
Publisher
Sociedade Brasileira de Zootecnia, Viçosa, Brazil
Citation
Revista Brasileira de Zootecnia, 2018, 47, pp e20170196
Abstract

The effect of the use of a system with four milkings in early lactation of crossbred cows on the profitability of dairy farming of a milk production system was analyzed by means of simulation. During the rainy season, in the summer season, the cows were kept on pastures and during the dry season,...

Author(s)
Teixeira Júnior, F. E. P.; Lopes, M. A.; Ruas, J. R. M.; Costa, M. D.; Rocha Júnior, V. R.
Publisher
Universidade Federal Rural de Pernambuco, Recife, Brazil
Citation
Medicina Veterinária (Brasil), 2017, 11, 1, pp 53-61
AbstractFull Text

This study aimed at correlating reproductive rates with milk production based on the evaluation of cows in different milk production levels in a commercial dairy herd located at Triângulo Mineiro region. A total of 241 cows of the following breeds were monitored: Holstein, Girolando, Jersey...

Author(s)
Gallo, S. B.; Graciosa, M. G.; Matarim, D. L.
Publisher
Faculdade de Ciências Agrárias e Veterinárias, Câmpus de Jaboticabal, UNESP, Jaboticabal, Brazil
Citation
Científica (Jaboticabal), 2016, 44, 3, pp 451-456
AbstractFull Text

The objective was to evaluate the productive and reproductive performances of F1 Holstein × Gir cows in the state of Minas Gerais. The herd during the summer was managed in a pasture based production system with supplementation of concentrate according to milk production and in the winter it was...

Author(s)
Ribeiro, L. S.; Goes, T. J. F.; Torres Filho, R. A.; Araújo, C. V.; Reis, R. B.; Saturnino, H. M.
Publisher
FEPMVZ - Editora, Belo Horizonte, Brazil
Citation
Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2017, 69, 6, pp 1624-1634
AbstractFull Text

This study aimed to evaluate the performance, efficiency and economic viability of different supplements for dairy heifers on Brachiaria decumbens pasture. Twelve heifers with 186±30.5 kg average weight were divided in three groups of four animals. The treatments were mineral salt ad libitum; 0.4...

Author(s)
Santos, R. M. dos; Lana, R. de P.; Teixeira, C. R. V.
Publisher
Universidade Estadual de Maringá, Maringá, Brazil
Citation
Acta Scientiarum - Animal Sciences, 2017, 39, 4, pp 371-376
Abstract

The northern region of Minas Gerais has limited milk production, mainly due to drought, however, this is the economic base of family agriculture that sustains the region. Thus, a study was carried out to evaluate the effect of the thermal environment on the physiological responses of Holstein-Zebu...

Author(s)
Moreira, S. J. M.; Carvalho, C. C. S.; Santos, L. V.; Ruas, J. R. M.; Andrade Júnior, I. O.; Aiura, A. L. O.; Gonçalves, G. A. M.
Publisher
Instituto de Zootecnia, Nova Odessa, Brazil
Citation
Boletim de Indústria Animal, 2017, 74, 3, pp 162-168
Abstract

The aim of this study was to evaluate the effects of the feed supplements monensin, virginiamycin, or a combination of the two, on intake, digestibility, and methane emission in the male cattle breed F1 Holstein × Gir. We used a complete randomised design with four treatments consisting of the...

Author(s)
Fonseca, M. P. da; Borges, A. L. da C. C.; Reis e Silva, R.; Lage, H. F.; Ferreira, A. L.; Lopes, F. C. F.; Pancoti, C. G.; Rodrigues, J. A. S.
Publisher
CSIRO, Collingwood, Australia
Citation
Animal Production Science, 2016, 56, 7, pp 1041-1045
Abstract

The aim of this study was to assess physiological parameters, hair coat morphological characteristics and temperature gradients in crossbred Holstein-Gyr cows in the municipality of Tapira, Minas Gerais (MG), Brazil. Forty-nine lactating cows from six Holstein (H) and Gyr (G) genetic groups (1/4H...

Author(s)
Cruz, P. F. F. da; Monteiro, C. P.; Guimarães, E. C.; Antunes, R. C.; Nascimento, M. R. B. de M.
Publisher
Universidade Federal de Uberlândia, Uberlândia, Brazil
Citation
Bioscience Journal, 2016, 32, 2, pp 471-477

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