Navegação por Autor "Koetz Junior, Celso"

Resultados 1-5 de 5

    • Avaliação das causas de reprovação de touros sintéticos no exame andrológico 

      Menegassi, Silvio Renato Oliveira; Barcellos, Julio Otavio Jardim; Borges, Joao Batista Souza; Peripolli, Vanessa; Koetz Junior, Celso; Lopes, Flavio Guiselli; Pimentel, Concepta Margaret McManus; Canozzi, Maria Eugênia Andrighetto (2013) [Artigo de periódico]

    • Candidate genes related to reproductive traits of Hereford and Braford bulls 

      Menegassi, Silvio Renato Oliveira; Pereira, Gabriel Ribas; Aguiar, Paulo Ricardo Loss; Pereira, Katiana Santos Stelmach; Koetz Junior, Celso; Braccini Neto, José; Peripolli, Vanessa; Berlitz, Carolina Gabriela Becker; Barcellos, Julio Otavio Jardim (2018) [Artigo de periódico]
      This study emphasized the importance of using candidate genes in predicting semen quality in bulls that can be used in cow-calf production. The aim of this study was to evaluate some candidate genes related to reproductive ...

    • Genetic parameters of age at first calving, weight gain, and visual scores in Nelore heifers 

      Claus, Luis Afonso Marques; Koetz Junior, Celso; Roso, Vanerlei Mozaquatro; Borges, Marcelo Henrique Favaro; Barcellos, Julio Otavio Jardim; Ribeiro, Edson Luis de Azambuja (2017) [Artigo de periódico]
      This study aimed at estimating the heritability of age at first calving and of performance traits included in the selection index and the genetic correlations between age at first calving and these performance traits. Data ...

    • Genetic trends for mature body weight, visual scores, and growth traits in Nellore cattle 

      Koetz Junior, Celso; Roso, Vanerlei Mozaquatro; Claus, Luis Afonso Marques; Oliveira, Rui Paulo Lopes de; Fávaro, Patrícia da Cruz; Borges, Marcelo Henrique Favaro; Barcellos, Julio Otavio Jardim; Ribeiro, Edson Luis de Azambuja (2017) [Artigo de periódico]
      Mature weight (MW) of cows is related to the costs of their production. Usually, cows with moderate MW are more efficient in challenging environments, such as those available in the production systems in Brazil. In the ...

    • Phenotypic factors and genetic group on the selling price formation of beef calves sold in auctions at the Northern region of Paraná State, Brazil 

      Koetz Junior, Celso; Lopes, Flavio Guiselli; Barca Junior, Flavio Antonio; Claus, Luis Afonso Marques; Canozzi, Maria Eugênia Andrighetto; Menegassi, Silvio Renato Oliveira; Dill, Matheus Dhein; Barcellos, Julio Otavio Jardim (2014) [Artigo de periódico]
      The aim of this study is to estimate the effects of phenotypic traits on the fi nal price of calves sold at auctions in the region of northern Paraná. Data were collected between April 2011 and April 2012 at 12 auctions, ...