Ricardo da Fonseca

• Abstract

  This study was designed to estimate genetic parameters for the following traits of Brahman cattle in Brazil: age at first calving (AFC), calving interval (CI), rebreeding (REB), and stayability (STAY). For REB, the value 1 was assigned to heifers that rebred and calved after first calving and the value 0 was assigned to heifers that failed to rebreed after first calving. Likewise, for S...

  Estimates of genetic parameters for reproductive traits in Brahman cattle breed, PUB.ART

• Abstract

  Brazil has the largest commercial cattle herd in the world basically composed by zebu, and the Brahman breed cutting the fastest growing in recent years. One way to help achieve greater genetic gain in population of Brazilian Brahman is by population analysis using pedigree information assessing, mainly, the genetic variability. In this work will be used pedigree data belonging to the B...

  Study of genetic variability of Brahman cattle in Brazil using pedigree analisys, AP.R

• Abstract

  In the animal breeding field, due to the high costs of set and maintenance of the experiments, due to large generation times and theoretical complexity, the simulation software have become very important. However, the developed programs present some limitations: 1) they are specific; 2) they present costs of purchase and/or use; 3) they are build for just one operating system; 4) they a...

  Development of a free-software to simulation in animal breeding, AP.JP

• Abstract

  Brazil stands out as the fourth largest producer of pig meat in the world, generating thousands of jobs, thus being an important activity for the country. However, Brazilian pig farming depend on approximately 75% of genetic material for breeding programs established abroad, as few national breeding programs persist. In order for these programs to be viable in the medium and long term, ...

  STUDY OF MORTALITY IN PIGS: A GENETIC AND GENOMIC ANALYSIS, BP.PD

• Abstract

  The sheep industry cutting presents itself as an increasingly important economic activity for the country and has seen intense efforts of several groups seeking to promote improvements in livestock productivity and these can be achieved using genetic selection, where genetic parameters features of interest are utlizadas as an aid in developing strategies to maximize genetic gain for tra...

  ESTIMATES OF GENETIC PARAMETERS FOR MATERNAL CHARACTERISTICS OF ABILITY IN FEMALE SANTA INES, BP.MS

• Abstract

  The techniques used in genetic improvement is made to allow selection of various features, allowing animals really fit and with a favorable genetic are not eliminated early from the herd. However, small and medium producers have no organization, knowledge or software needed to perform the selection, thus requiring the use of simpler techniques, such as method and Tandem Independent Cull...

  Development and implementation of multi trait selection algorithms, BP.IC

(Only some records are available in English at this moment)