2013
DOI: 10.1590/s0103-84782013000400023
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Comportamento ingestivo de vacas primíparas das raças Guzerá e Sindi recebendo dietas com diferentes níveis de ureia

Abstract: RESUMO Objetivou-se com este trabalho avaliar parâmetros de comportamento ingestivo de vacas primíparas das raças Guzerá e Sindi recebendo dietas com diferentes níveis de inclusão T1 (0,0 canade-açúcar + 0,0% ureia), T2 (13,0% cana-de-açúcar + 0,6% ureia), T3 (26,2% cana-de-açúcar + 1,2% ureia) e T4 (39,4% cana-de-açúcar + 1,8% ureia) ABSTRACT This study aims to evaluate the ingestive behavior parameters of primiparous cows Sindi and Guzerá breeds under diet of different levels of urea inclusion replacing th… Show more

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Cited by 4 publications
(3 citation statements)
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“…Mertens (1996) asserts that if diets have a low fiber content, the rumen fermentation is reduced. According to Lima et al (2013) and Figueiredo et al (2013), the rumination efficiency is affected by the intakes of DM and NDFap, positively or negatively. Fontenelle et al (2011) mention that a prolonged rumination activity does not always compensate for a reduction in rumination efficiency.…”
Section: Resultsmentioning
confidence: 99%
“…Mertens (1996) asserts that if diets have a low fiber content, the rumen fermentation is reduced. According to Lima et al (2013) and Figueiredo et al (2013), the rumination efficiency is affected by the intakes of DM and NDFap, positively or negatively. Fontenelle et al (2011) mention that a prolonged rumination activity does not always compensate for a reduction in rumination efficiency.…”
Section: Resultsmentioning
confidence: 99%
“…Apesar de a ureia ser utilizada como controlador de consumo onde a maior inclusão tende a diminuir o consumo por bovinos (Lima et al, 2013), os resultados demonstram que animais mestiços, com produção de até 10 kg de leite dia -1 , respondem de forma produtiva similar ao uso de fontes proteicas cereais, permitindo lançar desafios nutricionais em maiores níveis do composto avaliado em dietas. Wilson et al (1975) atribuíram a redução do consumo de MS da dieta a catabólitos intermediários do metabolismo da ureia, apenas quando a inclusão foi acima de 2,3%.…”
Section: Resultsunclassified
“…Understanding the feeding behavior of animals is considered a useful tool for the herd management, as it is intrinsically related to their production (Lima et al, 2013). The study of the ingestive behavior has been used as a tool to evaluate diets that allows for the adjustment of the animal-feeding management in order to achieve better performance Pinheiro et al, 2011;Santana Júnior et al, 2013), guiding and reinforcing various discussions about intake.…”
Section: Introductionmentioning
confidence: 99%