Ruminal degradation and intake prediction of the dwarf elephant grass genotypes

被引：0
|
作者：
do Carmo Araujo, Saulo Alberto
Vasquez, Hernan Maldonado [1 ]
Coelho da Silva, Jose Fernando [1 ]
Deminicis, Bruno Borges [2 ]
de Souza Siqueira Campos, Patricia Regina
Lista, Fabio Nunes
机构：
[1] Univ Estadual Norte Fluminense, CCTA, Lab Zootecnia & Nutr Anim, Setor Forragicultura & Nutr Ruminantes, Campos Dos Goytacazes, Brazil
[2] Univ Estadual Norte Fluminense, CCTA, Lab Fitotecnia, Campos Dos Goytacazes, Brazil
来源：
REVISTA BRASILEIRA DE ZOOTECNIA-BRAZILIAN JOURNAL OF ANIMAL SCIENCE | 2010年 / 39卷 / 01期
关键词：
cutting intervals; degradability; estimated intake; forage; rumen; NEUTRAL DETERGENT FIBER; PROTEIN DEGRADABILITY; PENNISETUM-PURPUREUM; TROPICAL FORAGES; VOLUNTARY INTAKE; LACTATING COWS; RUMEN; DIGESTIBILITY; KINETICS; PASSAGE;
D O I：
暂无
中图分类号：
S8 [畜牧、 动物医学、狩猎、蚕、蜂];
学科分类号：
0905 ;
摘要：
The objectives of this study were to assess the in situ rumen degradation of dry matter (DM) and neutral detergent fiber (NDF) and the estimated DM intake of dwarf elephant grass genotypes in different cutting intervals. The incubation periods in the rumen environment were 0, 3, 6, 12, 24, 36, 48, 72, 96 and 144 hours. A randomized block design was used with three replications (animals), two dwarf elephant grass genotypes (CNPGL 94-34-3 and CNPGL 92-198-7) and the cv. Mott, with cutting intervals of 14, 28, 42, 56, 70 and 84 days, in a split plot design. The parameters of DM and NDF degradation, and its potential and effective degradabilities did not vary greatly for cv. Mott and the CNPGL 94-34-3 and CNPGL 92-198-7 genotypes, but they decreased substantially with increased plant maturity for all the genotypes. Intake estimates generated by two equations are considered valid for these feeds.
引用
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页码：18 / 24
页数：7
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