Forage production of elephant grass under intermittent stocking


Autoria(s): Chaves,Carla Silva; Gomide,Carlos Augusto de Miranda; Ribeiro,Karina Guimarães; Paciullo,Domingos Sávio Campos; Ledo,Francisco José da Silva; Costa,Igor de Almeida; Campana,Ludmila Lacerda
Data(s)

01/02/2013

Resumo

The objective of this work was to evaluate the dry matter production of elephant grass (Pennisetum purpureum) genotypes, managed under intermittent stocking. A completely randomized design was used, with two genotypes and three replicates. The treatments consisted of factorial combinations (2x2x2) of genotypes ('BRS Kurumi' and the clone CNPGL 00‑1‑3), two light interception levels (LI) at the onset of grazing (90 and 95%), and two post‑grazing canopy heights (30 and 50 cm). A total of 24 Holstein x Zebu crossbred heifers were used. The stocking density varied in order to finish the grazing periods in two days. The interval between the defoliation, based on 95% LI, resulted in a higher leaf mass per grazing cycle. The post‑grazing height of 30 cm did not affect the number of grazing cycles but provided a greater herbage accumulation rate. The cultivar BRS Kurumi has higher pasture growth, lower rest period, and greater number of grazing cycles, which results in increased forage production in the growing season.

Formato

text/html

Identificador

http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2013000200015

Idioma(s)

en

Publicador

Embrapa Informação Tecnológica

Pesquisa Agropecuária Brasileira

Fonte

Pesquisa Agropecuária Brasileira v.48 n.2 2013

Palavras-Chave #Pennisetum purpureum #canopy structure #grazing efficiency #leaf dry mass #rotational grazing #rest period
Tipo

journal article