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Abstract

Objective: This study assessed the possible existence of genotype by environment interactions for milk, fat and protein yields in Holstein cattle raised in one of the most important milk production basins in Brazil. Methods: Changes in the genetic parameters and breeding values were evaluated for...

Author(s)
Moreira, R. P.; Pinto, L. F. B.; Valloto, A. A.; Pedrosa, V. B.
Publisher
Asian-Australasian Association of Animal Production Societies, Seoul, Korea Republic
Citation
Asian-Australasian Journal of Animal Sciences, 2019, 32, 4, pp 459-466
Abstract

Test-day milk, fat and protein yields and somatic cell score (SCS) of Brazilian Holstein cattle were used to study the effect of fixed (HTDF) vs random (HTDR) contemporary groups (herd-test-date) with or without unknown parent groups (UPG) using an autoregressive test-day animal model for genetic...

Author(s)
Silva, D. A. da; Costa, C. N.; Silva, A. A. da; Fonseca e Silva, F.; Lopes, P. S.; Santos, G. G. dos; Thompson, G.; Carvalheira, J.
Publisher
Elsevier B.V., Amsterdam, Netherlands
Citation
Livestock Science, 2019, 220, pp 1-7
Abstract

The aim was to evaluate the effect of different levels of palm oil on the protected form as supplement in dairy cows feeding, on body dynamics, milk production and composition, metabolic profile and reproduction. Assay was conducted from July to August 2013 in state of Paraná, Brazil. Twenty-seven...

Author(s)
Zatta, M. R.; Maeda, E. M.; Fluck, A. C.; Hill, J. A. G.; Silveira, A. L. F. da; Macedo, V. de P.; Carvalho, A. F. G.
Publisher
Veterinaria Organizacion S.L., Malaga, Spain
Citation
REDVET, 2017, 18, 9, pp 091747
AbstractFull Text

Milk supply chain in Brazil exhibits significant production system heterogeneity in all federal units. Thus, the objective of this study was to form homogeneous groups of bovine milk production units based on the chemical and microbiological quality of the milk via multivariate statistical...

Author(s)
Vargas, D. P. de; Nörnberg, J. L.; Mello, R. de O.; Scheibler, R. B.; Mello, F. C. B.; Rizzo, F. A.; Bellato, T. K. B.
Publisher
Centro de Ciências Rurais, Universidade Federal de Santa Maria, Santa Maria, Brazil
Citation
Ciência Rural, 2018, 48, 4, pp e20170055
Abstract

A commercial feed additive, OmniGen-AF® (OMN; Phibro Animal Health, Teaneck, NJ), has shown positive impacts on thermoregulation and milk production in confined dairy cows. This study was carried out to evaluate whether OMN has similar effects on grazing dairy cows. For the latter purpose, feed...

Author(s)
Gandra, J. R.; Takiya, C. S.; Valle, T. A. del; Orbach, N. D.; Ferraz, I. R.; Oliveira, E. R.; Goes, R. H. T. B.; Gandra, E. R. S.; Pereira, T. L.; Batista, J. D. O.; Araki, H. M. C.; Damiani, J.; Escobar, A. Z.
Publisher
Elsevier B.V., Amsterdam, Netherlands
Citation
Livestock Science, 2019, 221, pp 28-32
Abstract

The objective of the present study was to compare the accumulated milk production up to 305 days (P305), mean fat content (TGM) and mean protein (TPM) of crossbred females of the genetic compositions (CG) 1/2 HOL, 3/4 HOL and 5/8 HOL in a grass-fed milk production system. Data were collected from...

Author(s)
Lobo, M. H. S.; Saenz, E. A. C.; Silva, R. R.; Camargos, A. S.
Publisher
Universidade do Oeste Paulista (UNOESTE), Sao Paulo, Brazil
Citation
Colloquium Agrariae, 2017, 13, Especial 2, pp 118-123
AbstractFull Text

The crossbreeding between dairy cow breeds has been used as an alternative to improve some characteristics such as milk composition, udder health, and reproductive aspects on dairy herds. The aim was to compare growth, milk yield and composition, and mammary gland health of crossbred Holstein ×...

Author(s)
Knob, D. A.; Alessio, D. R. M.; Thaler Neto, A.; Mozzaquatro, F. D.
Publisher
Universidade Estadual de Londrina, Londrina, Brazil
Citation
Semina: Ciências Agrárias (Londrina), 2018, 39, 6, pp 2597-2606
Abstract

The hypothesis of the current study was that functional oils (FO) could replace monensin (MON) in diets while improving thermal status and performance of dairy cows. This study was designed to evaluate the effects of a blend of FO and MON on nutrient intake and total tract digestion, ruminal...

Author(s)
Ghizzi, L. G.; Valle, T. A. del; Takiya, C. S.; Silva, G. G. da; Zilio, E. M. C.; Grigoletto, N. T. S.; Martello, L. S.; Rennó, F. P.
Publisher
Elsevier, Amsterdam, Netherlands
Citation
Animal Feed Science and Technology, 2018, 246, pp 158-166
Abstract

The aim of this research communication was to identify chromosome regions and genes that could be related to milk yield (MY), milk fat (%F) and protein percentage (%P) in Brazilian buffalo cows using information from genotyped and non-genotyped animals. We used the 90 K Axiom® Buffalo Genotyping...

Author(s)
Barros, C. da C.; Santos, D. J. de A.; Aspilcueta-Borquis, R. R.; Camargo, G. M. F. de; Araújo Neto, F. R. de; Tonhati, H.
Publisher
Cambridge University Press, Cambridge, UK
Citation
Journal of Dairy Research, 2018, 85, 4, pp 402-406
AbstractFull Text

The present study aimed to perform a comparison of the predictive power of different equations to estimate intake by dairy cows. The work was conducted through collecting information in literature about body weight, milk yield, days in milk, dry matter intake and fat content of milk of dairy cows...

Author(s)
Zanin, E.; Henrique, D. S.; Fluck, A. C.
Publisher
Escola de Medicina Veterinária, Universidade Federal da Bahia, Bahia, Brazil
Citation
Revista Brasileira de Saude e Producao Animal, 2017, 18, 1, pp 76-88

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