中国农业期刊集成服务平台

当前位置: 首页 > 文章 > Effects of Cultivar and Maturity Stage on Chemical Composition and Ruminal Digestibility of Oat and Barley Hay Using Rumen Fluid or Faecal Liquor as the Inoculum 东北农业大学学报(英文版) 2004,11 (2)

Position: Home > Articles > Effects of Cultivar and Maturity Stage on Chemical Composition and Ruminal Digestibility of Oat and Barley Hay Using Rumen Fluid or Faecal Liquor as the Inoculum Journal of Northeast Agricultural University(English Edition) 2004,11 (2)

Effects of Cultivar and Maturity Stage on Chemical Composition and Ruminal Digestibility of Oat and Barley Hay Using Rumen Fluid or Faecal Liquor as the Inoculum

作者：

ZHANG Yona-gen;YU P;CHRISTENSEN D A

单位：

;College of Animal Science and Technology, Northeast Agricultural University, Harbin Heilongjiang 150030, PRC

关键词：

oat;barley;maturity stages;chemical composition;ivdmd;rumen fluid;fecal liquor

摘要：

Two experiments were conducted to study the effects of variety and maturity stage on chemical composition and in vitro dry matter degradability of oat and barley forages In expl, four oat varieties and one barley variety were harvested at three maturity stages: stage 1, Two weeks before stage 2; stage 2, Mid-dough for oat and early-dough for barley; stage 3, One week after stage 2. All samples were analyzed for DM, CP, ether extract, ash, ADF (acid detergent fiber), NDF(neutral detergent fiber), ADL(acid detergent lignin), NDICP(neutral detergent insoluble crude protein) and IVDMD(/n vitro dry matter digestibility) There was no difference in chemical components and IVD-MD among oat variety But maturity stage had a profound influence on some nutrientcontents and IVDMD. With maturity advancing, CP decreased from15.5% to 11.03% and from 147% to 109% at stage 1 and stage 2 for oat and for barley, respectively, and IVDMD decreased slowly from 72.0% to 64 9% and from 73 5% to 68 8% for oat and for barley, respectively. For fiber fractions, NDF declined before stage 2 and then level off after stage 2, while ADF changed little throughout maturation. The ADL trended to increase with increased maturity. The results from the present experiment revealed thatBailor has relatively greater IVDMD value and kept lower ADL content than any other cultivars. The observed variation in chemical composition and ruminal digestibility among various oat cultivars would allow breeders choose suitable oat forages for cattle diet In experiment 2, the Daisy II incubator was used to compare IVDMD values of forages of seven oat cultivars using rumen fluid or faecal liquor as the inoculum source. There was a strong linear relationship between the two estimates (R ~2 - 0.809;P < 0,001), which indicated that fecal liquor method has the potential to be used instead of rumen fluid for estimation of in vitro digestibility of forage. It is suggested the method for determination of IVDMD using faecal liquor was appropriate for batch operation with precision and efficiency.

相似文章

Breeding and identification of insect-resistant rice by transferring two insecticidal genes, sbk and sck. [Zhang QiJun, Li Cong, Liu ShaoKui, Lai Dong, Qi QingMing, Lu ChuanGen] 水稻科学(英文版) 2013,20 (1)
Survey of rice cropping systems in Kampong Chhnang province, Cambodia. [Kleinhenz, V., Chea, S., Hun Ngin] 水稻科学(英文版) 2013,20 (2)
Effects of aeration on root physiology and nitrogen metabolism in rice. [Xu ChunMei, Wang DanYing, Chen Song, Chen LiPing, Zhang XiuFu] 水稻科学(英文版) 2013,20 (2)
Genetic analysis and gene mapping of light brown spotted leaf mutant in rice. [Feng BaoHua, Yang Yang, Shi YongFeng, Lin Lu, Chen Jie, Wei YanLin, Leung Hei, Wu JianLi] 水稻科学(英文版) 2013,20 (1)
Influence of crop nutrition on grain yield, seed quality and water productivity under two rice cultivation systems. [Singh, Y. V., Singh, K. K., Sharma, S. K.] 水稻科学(英文版) 2013,20 (2)
Parental selection in rice cultivar improvement. [Samonte, S. O. P. B., Tabien, R. E., Wilson, L. T.] 水稻科学(英文版) 2013,20 (1)
Genetic diversity of rice landraces from lowland and upland accessions of China. [Zhang LiNa, Cao GuiLan, Han LongZhi] 水稻科学(英文版) 2013,20 (4)
Effects of nitrogen application level on rice nutrient uptake and ammonia volatilization. [Yu QiaoGang, Ye Jing, Yang ShaoNa, Fu JianRong, Ma JunWei, Sun WanChun, Jiang LiNa, Wang Qiang] 水稻科学(英文版) 2013,20 (2)
QTL analysis for seven quality traits of RIL population in japonica rice based on three genetic statistical models. [Liu QiangMing, Jiang JianHua, Niu FuAn, He YingJun, Hong DeLin] 水稻科学(英文版) 2013,20 (1)
Water, nitrogen and plant density affect the response of leaf appearance of direct seeded rice to thermal time. [Martinez-Eixarch, M., Zhu DeFeng, Catala-Forner, M. del M., Pla-Mayor, E., Tomas-Navarro, N.] 水稻科学(英文版) 2013,20 (1)

导出引用

计量

文章访问数: 7

HTML全文浏览量: 0

PDF下载量: 0

Effects of Cultivar and Maturity Stage on Chemical Composition and Ruminal Digestibility of Oat and Barley Hay Using Rumen Fluid or Faecal Liquor as the Inoculum

相似文章

所属期刊

东北农业大学学报(英文版)

推荐期刊

农业科学学报 (英文)

水稻科学(英文版)