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Protein requirements for pregnant dairy cows. Author(s): CAMPOS, M. M.; MACHADO, F. S. We aimed to estimate the protein requirements of pregnant Holstein × Gyr cows. Sixty-one Holstein × Gyr (HG) cows were used, with an average initial BW of 480 ± 10.1 kg and 5 ± 0.5 yrs of age. Cows we... ... Repository: BDPA Publication year: 2023
Genetic parameters of Girolando crossbred cows in dairy herds in the state of Acre, Brazil. Author(s): CARNEIRO JUNIOR, J. M. This study aimed at estimating genetic parameters for milk production and conformation characteristics in Girolando crossbred dairy cows reared in the High and Low Acre region using the restricted max... ... Repository: BDPA Publication year: 2020
Frequency of free-stall occupancy by dairy cows. Author(s): PIRES, M. de F. A. 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
Economic feasibility of adding sunflower oil to elephant grass-based diets of lactating dairy cows. Author(s): LAGE, L. A.; LOPES, M. A.; LOPES, F. C. F.; GAMA, M. A. S. da; RIBEIRO, C. G. S.; RODRIGUEZ, N. M.; DEMEU, F. A. We aimed to evaluate the economic feasibility of adding increasing levels of sunflower oil (0.0, 15, 30, and 45 g/kg of dry matter) to elephant grass (Pennisetum purpureum, Schum) based diets of milkp... ... Repository: BDPA Publication year: 2016
Tithonia diversifolia as a supplementary feed for dairy cows. Author(s): GAMA, M. A. S. da; PEREIRA, L. G. R.; TOMICH, T. R. Abstract The objective of this study was to examine the effects of Tithonia diversifolia as a supplementary forage on dairy cow performance and methane production. Nine lactating Holstein × Zebu dairy... ... Repository: BDPA Publication year: 2016
Effect of butaphosphan and cyanocobalamin on postpartum metabolism and milk production in dairy cows. Author(s): SCHMITT, E.; PFEIFER, L. F. M. O objetivo deste estudo foi determinar o efeito de butaphosphan e cianocobalamina (BTPC) no plasma e na produção de leite, em vacas leiteiras no pós-parto. Repository: BDPA Publication year: 2013
Replacement of soybean meal with soybean cake reduces methane emissions in dairy cows and an assessment of a face-mask technique for methane measurement. Author(s): PEREIRA, L. G. R.; TOMICH, T. R.; MACHADO, F. S.; CAMPOS, M. M.; GAMA, M. A. S. da The objective of this study was to (a) evaluate the effect of replacing soybean meal (SBM) with soybean cake (SBC) on feeding behavior, rumen fermentation, milk production, nutrient digestibility and... ... Repository: BDPA Publication year: 2019
Supplementation with protected FAT in the dairy buffalo cows pregnancy rate. Author(s): NOGUEIRA, E. The objective of this study was to evaluate the effect of supplementation with rumen-protected fat source (RPF, palm oil) on the pregnancy rate of dairy buffalo cows submitted to FTAI. Repository: BDPA Publication year: 2017
Isolation and fermentative activity of rumen anaerobic fungi in dairy cows. Author(s): OTENIO, M. H.; RIBEIRO, M. T.; LOPES, F. C. F.; CARNEIRO, J. da C.; ARCURI, P. B. Repository: BDPA Publication year: 2015
Diurnal behavior of dairy cows on alfalfa pastures supplemented with corn silage and concentrate. Author(s): PERES NETTO, D.; RIBEIRO, A. R. B.; RODRIGUES, A. de A.; FERREIRA, R. de P.; MENDONCA, F. C.; FREITAS, A. R. de; CAMPANA, M.; WECHSLER, F. S. The diurnal ingestive behavior of dairy cows on alfalfa pastures supplemented with corn silage and concentrate was evaluated. Sixteen Holstein dairy cows in mid-lactation were used in a randomized blo... ... Repository: BDPA Publication year: 2014

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