Trop Anim Health Prod DOI 10.1007/s11250-014-0741-z
REGULAR ARTICLES
Ingestive behavior of grazing steers fed increasing levels of concentrate supplementation with different crude protein contents Fabrício Bacelar Lima Mendes & Robério Rodrigues Silva & Gleidson Giordano Pinto de Carvalho & Fabiano Ferreira da Silva & Túlio Otávio Jardim D`Almeida Lins & Anderson Luiz Nascimento da Silva & Venício Macedo & George Abreu Filho & Sinvaldo Oliveira de Souza & Joanderson Oliveira Guimarães
Received: 19 May 2014 / Accepted: 24 November 2014 # Springer Science+Business Media Dordrecht 2014
Abstract This study aimed to evaluate the ingestive behavior of steers on Brachiaria brizantha pasture fed diets with increasing levels of concentrate supplementation. Thirty-two crossbred steers in the finishing phase with average weight of 420±8 kg were distributed in a completely randomized design with four treatments and eight replicates per treatment. Their behavior was assessed every 5 min for 24 h, in the middle of the experimental period. Variance and regression analyses at 0.05 % probability were adopted. The times spent grazing and ruminating reduced linearly (P
REGULAR ARTICLES
Ingestive behavior of grazing steers fed increasing levels of concentrate supplementation with different crude protein contents Fabrício Bacelar Lima Mendes & Robério Rodrigues Silva & Gleidson Giordano Pinto de Carvalho & Fabiano Ferreira da Silva & Túlio Otávio Jardim D`Almeida Lins & Anderson Luiz Nascimento da Silva & Venício Macedo & George Abreu Filho & Sinvaldo Oliveira de Souza & Joanderson Oliveira Guimarães
Received: 19 May 2014 / Accepted: 24 November 2014 # Springer Science+Business Media Dordrecht 2014
Abstract This study aimed to evaluate the ingestive behavior of steers on Brachiaria brizantha pasture fed diets with increasing levels of concentrate supplementation. Thirty-two crossbred steers in the finishing phase with average weight of 420±8 kg were distributed in a completely randomized design with four treatments and eight replicates per treatment. Their behavior was assessed every 5 min for 24 h, in the middle of the experimental period. Variance and regression analyses at 0.05 % probability were adopted. The times spent grazing and ruminating reduced linearly (P
