全部文献期刊学位论文会议报纸专利标准年鉴图书|学者科研项目
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作者:... M.T.L. Serrano , A. Lang , M.L. Santana
来源:[J].Arquivo Brasileiro de Medicina Veterinária e Zootecnia(IF 0.269), 2013, Vol.65 (2), pp.341-345DOAJ
摘要:Relatou-se um caso de espinha bífida aberta em uma bezerra de seis dias de idade que apresentava decúbito lateral permanente, pescoço em posição de opistótono, membros torácicos estendidos, impotência funcional dos membros pélvicos e fístulação na região lombar. To...
作者:M.L. Santana , R.J. Pereira ...
来源:[J].Livestock Science(IF 1.249), 2016, Vol.187, pp.6-15Elsevier
摘要:Abstract(#br)The monitoring of population structure, inbreeding and other related parameters has great potential to prevent major losses of genetic diversity in populations of Zebu cattle in Brazil. Therefore, the objective of the present study was to investigate the structu...
作者:M.L. Santana , R.J. Pereira ...
来源:[J].Livestock Science(IF 1.249), 2014, Vol.163, pp.26-33Elsevier
摘要:Abstract(#br)The Gir cattle breed ( Bos indicus ) is an important genetic resource for milk production throughout the tropics. The small number of Gir animals introduced in Brazil, rapid dissemination of this breed recently, and the intensification of selection practices could co...
作者:M.L. Santana , J.P. Eler
来源:[J].Livestock Science(IF 1.249), 2014, Vol.162, pp.50-58Elsevier
摘要:Abstract(#br)The purpose of this study was to demonstrate the usefulness of different multi-trait models and random regression models (RRM) using Legendre polynomials for the genetic evaluation of growth in Brazilian Bonsmara cattle. Data comprised 54,039 weight records of Bonsma...
作者:M.L. Santana , J.P. Eler ...
来源:[J].Livestock Science(IF 1.249), 2012, Vol.149 (3), pp.242-249Elsevier
摘要:Abstract(#br)The objectives of the present study were to characterize and define homogenous production environments of composite beef cattle in Brazil in terms of climatic and geographic variables using multivariate exploratory techniques and to use them to assess the presen...
作者:M.L. Santana , J.P. Eler , J.B.S. Ferraz
来源:[J].Livestock Science(IF 1.249), 2013, Vol.157 (1), pp.20-27Elsevier
摘要:Abstract(#br)The objective of the present study was to define an alternative contemporary group structure that would permit an increase in the number of records to be included in genetic evaluations with minimal bias. For this purpose, using different criteria as goodness of fit ...
作者:M.L. Santana , J.P. Eler ...
来源:[J].Livestock Science(IF 1.249), 2013, Vol.154 (1-3), pp.13-18Elsevier
摘要:Abstract(#br)Genetic parameters for hip height (HH), finishing precocity score (PRE), muscling score (MUS), bone score (BONE), and probability of pregnancy at 14 months (HP) were estimated using records of 121,086 Nelore animals born between 1984 and 2008 on 12 farms from th...
作者:M.L. Santana , G.J.M. Rosa ...
来源:[J].Livestock Science(IF 1.249), 2012, Vol.150 (1-3), pp.401-406Elsevier
摘要:Abstract(#br)The objective of this paper is to model variations in test-day milk yields of first lactations of Holstein cows by RR using B-spline functions and Bayesian inference in order to fit adequate and parsimonious models for the estimation of genetic parameters. They used ...
作者:M.L. Santana , R.J. Pereira ...
来源:[J].Journal of Dairy Science(IF 2.566), 2015, Vol.98 (12), pp.9035-9043Elsevier
摘要:Abstract(#br)In an attempt to determine the possible detrimental effects of continuous selection for milk yield on the genetic tolerance of Zebu cattle to heat stress, genetic parameters and trends of the response to heat stress for 86,950 test-day (TD) milk yield records fr...
作者:M.L. Santana , P.S. Oliveira ...
来源:[J].Livestock Science(IF 1.249), 2010, Vol.131 (2), pp.212-217Elsevier
摘要:Abstract(#br)The objective of this study was to identify and quantify the influence of F (inbreeding coefficient) on weaning weight (WW), weight gain from weaning to 18 months of age (WG345), finishing visual score (precocity) at 18 months of age, muscling visual score at 18...

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