Forage production of Tanzaniagrass (Panicum maximum Jacq. cv. Tanzania-1) grazed at different heights

被引:13
作者
Cano, CCP
Cecato, U
do Canto, MW
Rodrigues, AB
Jobim, CC
Rodrigues, AM
Galbeiro, S
do Nascimento, WG
机构
[1] Univ Estadual Maringa, Dept Zootecnia, BR-87020900 Maringa, Parana, Brazil
[2] Univ Estadual Maringa, PPZ, BR-87020900 Maringa, Parana, Brazil
来源
REVISTA BRASILEIRA DE ZOOTECNIA-BRAZILIAN JOURNAL OF ANIMAL SCIENCE | 2004年 / 33卷 / 06期
关键词
accumulation of green dry matter; bare ground; leaf area index; leaf/stem ratio; total forage mass;
D O I
10.1590/S1516-35982004000800005
中图分类号
S8 [畜牧、 动物医学、狩猎、蚕、蜂];
学科分类号
0905 ;
摘要
This experiment was conducted-out to evaluate the forage mass (FM), green leaf lamina mass (GLLM), green stem + leaf sheath mass (GSSM), mass of dead material (MDM), green forage mass (GMF), total forage mass (TFM), leaf/stem ratio (L/S), dry matter accumulation rate (DMAR), leaf area index (LAI), % of bare soil (BS) and litter cover percentage (LCP) in Tanzaniagrass pasture (Panicum maximum Jacq. cv. Tanzania-1) managed at four different sward heights (20, 40, 60 and 80 cm). The grazing method was the continuous stocking with variable stocking rate, and the grazing animals were Nellore steers with average weight of 340 kg. The completely randomized design was used with two replications and five evaluation periods were performed. The GLLM, GSSM, MDM, GMF, FM, LAI, DMAR, and TFM increased by increasing of the pasture height, the percentage of NCS, SCWL and dead material decreased with the pasture height. Tanzaniagrass management, based on the pasture height from 40 to 60 cmshowed good morphologic composition and high leaves availability for grazing, good ground cover and dry matter accumulation rate, while the heights of 20 and 80 cm shall not be recommended for the Tanzania grass management when the objective is high production of forage quality.
引用
收藏
页码:1949 / 1958
页数:10
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