Browsing Agricultural Sciences by Author "Valk, Márcio"

Now showing items 1-5 of 5

    • Classification of sows for longevity based on total number of piglets born alive in the first parities 

      Hilgemberg, João Otávio; Andretta, Ines; Mariani, Alexandre Bonadiman; Neimaier, Alisson Silva; Valk, Márcio; Jasluk, Guilherme Beber; Bittarello, Fernando; Lehnen, Cheila Roberta (2024) [Journal article]
      The aim of this study was to classify the sows for longevity based on the total number of piglets born alive in the first parities. Data comprising the period from January 2017 to March 2020 were obtained from a commercial ...

    • Decision trees as a tool for selecting sows in commercial herds 

      Hilgemberg, João Otávio; Andretta, Ines; Mariani, Alexandre Bonadiman; Neimaier, Alisson Silva; Valk, Márcio; Bittarello, Fernando; Hilgemberg, Rafaela; Lehnen, Cheila Roberta (2024) [Journal article]
      This study aimed to evaluate the use of decision trees to select sows based on the production parameters of parity order (PO) 1 sows from a commercial herd. Data were collected at a piglet production unit with a capacity ...

    • Feeding behavior of finishing pigs under diurnal cyclic heat stress 

      Oliveira, Marllon José Karpeggiane de; Valk, Márcio; Melo, Antônio Diego Brandão; Marçal, Danilo Alves; Silva, Cleslei Alisson; Valini, Graziela Alves da Cunha; Arnaut, Pedro Righetti; Gonçalves, Joseane Penteado Rosa; Andretta, Ines; Hauschild, Luciano (2023) [Journal article]
      The impact of cyclic heat stress (CHS) and turning the lights on and off on pig feeding behavior (FB) was investigated. The FB of 90 gilts was recorded in real-time under two ambient temperatures (AT): thermoneutrality ...

    • Genetic selection modulates feeding behavior of group-housed pigs exposed to daily cyclic high ambient temperatures 

      Fraga, Alícia Zem; Hauschild, Luciano; Campos, Paulo Henrique Reis Furtado; Valk, Márcio; Bello, Débora Zava; Silva, Marcos Kipper da; Andretta, Ines (2022) [Journal article]
      This study was conducted to evaluate the effect of genetic selection (Lines A and B; Line A pigs have a greater proportion of Pietrain genes than those from Line B and therefore, selected for improved lean tissue accretion) ...

    • Prandial correlations and structure of the ingestive behavior of pigs in precision feeding programs 

      Gomes, Bruna Cristina Kuhn; Andretta, Ines; Valk, Márcio; Pomar, Candido; Hauschild, Luciano; Fraga, Alícia Zem; Silva, Marcos Kipper da; Trevizan, Luciano; Remus, Aline (2021) [Journal article]
      The feeding behavior of growing-finishing pigs was analyzed to study prandial correlations and the probability of starting a new feeding event. The data were collected in real-time based on 157,632 visits by a group of 70 ...