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Provedor de dados:  Ciência Rural
País:  Brazil
Título:  Behaviors associated with cows more prone to produce milk with reduced stability to ethanol test due to feeding restriction
Autores:  Stumpf,Marcelo Tempel
Fischer,Vivian
Kolling,Giovani Jacob
Silva,Alessandra Ventura da
Ribeiro,Maria Edi Rocha
Santos,Carolina da Silva dos
Data:  2016-09-01
Ano:  2016
Palavras-chave:  Bos taurus taurus
Feeding restriction
Ingestive behaviour
Milk stability
Social behaviour
Resumo:  ABSTRACT: The experiment was carried out to identify changes in the behaviorr of lactating cows induced by severe feeding restriction and further refeeding that could serve as facilitators for the visual identification of cows more prone to produce milk with reduced stability. Twelve cows were separated into two groups: Control: full diet supply; Restriction: 50% of the full diet. Feed restriction lasted seven days (Period 1), with posterior supply of full diet for seven days (Period 2) for all treatments. Behavior was observed on the first and fifth days in each period from 08h40 to 19h00. Ingestive and social behavior were monitored. Cortisol assessed stress levels. Analysis of variance and multifactorial statistical analyzes were performed. Adequate feed supply reduced stress, improved animals' welfare and milk stability to the ethanol test. Elevation in the incidence of behavior related with hunger, frustration and discomfort is an indicator of cows more prone to produce milk with reduced stability.
Tipo:  Info:eu-repo/semantics/article
Idioma:  Inglês
Identificador:  http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000901662
Editor:  Universidade Federal de Santa Maria
Relação:  10.1590/0103-8478cr20151246
Formato:  text/html
Fonte:  Ciência Rural v.46 n.9 2016
Direitos:  info:eu-repo/semantics/openAccess
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