Skip to Content 1
Ir para o menu 2
Ir para a busca 3

Portal Embrapa

Language Language

português English
Entrar

Search Publications

Sort by: date | alphabetically


Genetic analyses of days to calving and their relationships with other traits in a Canchim cattle herd. Author(s): MUCARI, T. B.; ALENCAR, M. M. de; BARBOSA, P. F.; BARBOSA, R. T. Heritabilities and genetic correlations in a Canchim beef cattle herd were estimated using data on the following traits: male scrotal circumference at twelve months (SC12); days to first calving (DFC)... ... Repository: BDPA Publication year: 2007
Genetic correlations between days to first calving and scrotal circumference and weight at 12 months of age in a Canchim beef cattle herd. Author(s): MUCARI, T. B.; ALENCAR, M. M. de; BARBOSA, P. F. Repository: BDPA Publication year: 2006
Female fertility in a Guzerat dairy subpopulation: heterogeneity of variance components for calving intervals. Author(s): PANETTO, J. C. C.; VAL, J. E.; MARCONDES, C. R.; PEIXOTO, M. G. C. D.; VERNEQUE, R. da S.; FERRAZ, J. B. S.; GOLDEN, B. L. The objectives of the present study were to determine if variance components of calving intervals varied with age at calving and if considering calving intervals as a longitudinal trait would be a use... ... Repository: BDPA Publication year: 2012
Productive performance of pre-weaned calves reared in the Pantanal. Author(s): OLIVEIRA, L. O. F. de; ABREU, U. G. P. de; GOMES, R. da C.; NOGUEIRA, E.; SILVA, J. C. B.; COSTA, T. G. Early weaning (EW) has been adopted in cattle breeding farms in Pantanal as a strategy to increase the rate of pregnancy in cows. The primary income of these properties is the production of beef calve... ... Repository: BDPA Publication year: 2019
Estimation of genetic parameters of test day fat and protein yields in Brazilian Holstein cattle using an autoregressive multiple lactation animal model. Author(s): COSTA, C. N.; CARVALHEIRA, J.; COBUCI, J. A.; FREITAS, A. F. de; THOMPSON, G. This study was aimed to estimate variance components and genetic parameters for daily fat and protein yields of Brazilian Holstein cattle, using an autoregressive test day multiple lactations (AR) ani... ... Repository: BDPA Publication year: 2010
Genetic parameters for milk production by using random regression models with different alternatives of fixed regression modeling. Author(s): COBUCI, J. A.; COSTA, C. N.; BRACCINI NETO, J.; FREITAS, A. F. de Records of test-day milk yields of the first three lactations of 25,500 Holstein cows were used to estimate genetic parameters for milk yield by using two alternatives of definition of fixed regressio... ... Repository: BDPA Publication year: 2011
Genetic parameters for production traits in primiparous Holstein cows estimated by random regression models. Author(s): BIASSUS, I. de O.; COBUCI, J. A.; COSTA, C. N.; RORATO, P. R. N.; BRACCINI NETO, J.; CARDOSO, L. L. The objective of this study was to estimate genetic parameters for milk, fat and protein yields of Holstein cows using 56,508; 35,091 and 8,326 test-day milk records from 7,015, 4,476 and 1,114 cows,... ... Repository: BDPA Publication year: 2011
Effect of pre-weaning diet on the ruminal archaeal, bacterial, and fungal communities of dairy calves. Author(s): DIAS, J.; MARCONDES, M. I.; NORONHA, M. F.; RESENDE, R. T.; MACHADO, F. S.; MANTOVANI, H. C.; DILL-McFARLAND, K. A.; SUEN, G. At birth, calves display an underdeveloped rumen that eventually matures into a fully functional rumen as a result of solid food intake and microbial activity. However, little is known regarding the g... ... Repository: BDPA Publication year: 2017
Energy and protein requirements of young Holstein calves in tropical condition. Author(s): RODRIGUES, J. P. P.; LIMA, J. C. M.; CASTRO, M. M. D.; VALADARES FILHO, S. de C.; CAMPOS, M. M.; CHIZOTTI, M. L.; MARCONDES, M. I. Our objective was to estimate the energy and protein requirements of Holstein young calves up to 87 days old. Forty-two Holstein calves aged 4 days were used. From these, ten were randomly selected an... ... Repository: BDPA Publication year: 2016
Uterine inflammation and fertility of beef cows subjected to timed AI at different days postpartum. Author(s): PFEIFER, L. F. M.; ANDRADE, J. de S.; MOREIRA, E. M.; SILVA, R. R. da; NEVES, P. M. A.; SILVA, G. M. da S.; LEMOS, I. C.; SCHNEIDER, A. The aim of this study was to evaluate the uterine health and fertility of postpartum beef cows subjected to timed AI (TAI) protocols at different days from calving. Lactating Nelore cows (Bos indicus;... ... Repository: BDPA Publication year: 2018

Showing 1 - 10 of 3,060 results.

Observation

Some of Embrapa's publications are published as ePub files. To read them, use or download one of the following free software options to your computer or mobile device. Android: Google Play Books; IOS: iBooks; Windows and Linux: Calibre.

Access other publications

Access the Agricultural Research Database (BDPA) to consult Embrapa's full library collection and records.
Visit Embrapa Bookstore to purchase books and other publications sold by Embrapa.