Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/15306
metadata.artigo.dc.title: Sward canopy structure and performance of beef heifers under supplementation in Brachiaria brizantha cv. Marandu pastures maintained with three grazing intensities in a continuous stocking system
metadata.artigo.dc.creator: Casagrande, Daniel Rume
Ruggieri, Ana Cláudia
Moretti, Matheus Henrique
Berchielli, Telma Teresinha
Vieira, Bruno Ramalho
Roth, Anna Paula de Toledo Piza
Reis, Ricardo Andrade
metadata.artigo.dc.subject: Canopy height
Forage allowance
Grazing time
Number of feedings supplementation time
Pastagem - Suplementação
Pasture - Supplementation
Altura do dossel
Subsídio de forragem
Tempo de pastejo
metadata.artigo.dc.publisher: Sociedade Brasileira de Zootecnia
metadata.artigo.dc.date.issued: Oct-2011
metadata.artigo.dc.identifier.citation: CASAGRANDE, D. R. Sward canopy structure and performance of beef heifers under supplementation in Brachiaria brizantha cv. Marandu pastures maintained with three grazing intensities in a continuous stocking system. Revista Brasileira de Zootecnia, Viçosa, MG, v. 40, n. 10, p. 2074-2082, Oct. 2011.
metadata.artigo.dc.description.abstract: The objective of this study was to assess the sward canopy structure of Brachiaria brizantha cv. Marandu pastures maintained in three grazing intensities under continuous stocking system during the rainy season, along with the behavior and performance of grazing beef heifers supplemented with mineral salt or an energy/protein supplement. Three levels of forage allowance were assessed: 2.0, 2.5 and 3.0 kg of forage/kg of live weight, combined with two supplements (ad libitum mineral salt, and an energy/protein supplement at 0.3% of live weight/day, supplied daily). The experiment was designed as a randomized block study with two replications. The supplements did not influence the variables related to the canopy structure. Canopy height was greater at higher forage allowances during the late summer and early fall. Similarly, the stem mass was greater in pastures with higher forage allowances. Animals fed protein supplement spent less time grazing than animals supplemented with mineral salt. Stocking rate was higher in pastures with lower forage allowance levels, which increased the live weight gain per grazing area. Daily weight gain did not vary according to the forage allowance levels. The use of an energy/protein supplement did not affect the stocking rate; however, it increased individual live weight gain and live weight gain per grazing area compared with mineral salt supplementation. The use of energy/protein supplements is an efficient alternative to enhance animal performance and production under grazing systems during the rainy season.
metadata.artigo.dc.identifier.uri: repositorio.ufla.br/jspui/handle/1/15306
metadata.artigo.dc.language: en_US
Appears in Collections:DZO - Artigos publicados em periódicos



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