Determination and comparison of digestion kinetics of two fibre sources in geese (Anseris)
Determination and comparison of digestion kinetics of two fibre sources in geese (Anseris)
复制标题
鹅 (Anseris) 两种纤维来源消化动力学的测定和比较
DOI：
10.4314/sajas.v40i1.54131
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发表时间：
2010-04
影响因子：
0.8
通讯作者：
Sun, Zhen-Jun
中科院分区：
文献类型：
--
作者：
Lou, Yu-Jie;Liu, Hong-Liang;Wang, Jun;Sun, Zhen-Jun
本研究旨在测定和比较两种纤维源（卢塞恩、玉米秸秆）在鹅消化道不同部位的消化动力学。将60只吉林农安白色鹅随机分为两组，分别饲喂卢塞恩和玉米秸秆日粮。饲养30 d后，以Co-EDTA作为液体发酵剂的标记物，正构烷烃作为内标物。分别在补饲Co-EDTA后1.0 h、2.0 h、3.0 h、4.0 h和5.0 h，每个时间段每个处理处死5只鹅。收集腺胃、肌胃、十二指肠、空肠、回肠、盲肠和直肠的内容物用于消化动力学参数的评估。结果表明，饲喂卢塞恩饲料的鹅纤维消化动力学与饲喂玉米秆饲料的鹅纤维消化动力学一致。在消化道内，空肠的消化道流速最高，而肌胃的流速最慢。肌浆在胃和十二指肠的平均滞留时间最长。NDF、ADF和HC的消化率分别在十二指肠、肌胃、十二指肠和盲肠中最高。这些结果表明，鹅的砂囊和十二指肠在粗纤维的消化过程中可能起着重要的作用。关键词：鹅，纤维，卢塞恩，玉米秸秆，消化流动标记物，正构烷烃，Co-EDTA
The aim of this study was to determine and compare the digestion kinetics of two fibre sources (lucerne, maize stalk) in different segments of the digestive tract of geese. Sixty Jilin nongan white geese were divided into two groups and fed with a lucerne or maize stalk diet. After 30 days of feeding, all of the geese were fed with Co-EDTA as the marker of liquid digesta, and n-alkane was used as an internal marker. At 1.0 h, 2.0 h, 3.0 h, 4.0 h and 5.0 h after Co-EDTA was fed, five geese per treatment per time period were sacrificed by cervical dislocation. Content of the glandular stomach, gizzard, duodenum, jejunum, ileum, caecum and rectum were collected for the evaluation of the parameters of digestion kinetics. The results showed that digestion kinetics of fibre in geese fed with a lucerne diet is consistent with that of a maize stalk diet. Within the digestive tract, digesta flow was the highest in the jejunum, and the slowest in the gizzard. Mean retention time of the digesta was the longest in the gizzard and duodenum. The digestibility of NDF, ADF and HC was the highest in duodenum, gizzard and duodenum and caecum respectively. Collectively, these findings suggest that the gizzard and duodenum might play important roles in the digestion of crude fibre in geese. Keywords: Goose, fibre, lucerne, maize stalk, digestion flow markers, n-alkanes, Co-EDTA
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DOI：
10.1093/jaoac/60.6.1355
发表时间：
1977-11
期刊：
Journal - Association of Official Analytical Chemists
影响因子：
--
作者：
W. Horwitz
通讯作者：
W. Horwitz
影响因子：
2
作者：
HALLSWORTH, EG;COATES, JI
通讯作者：
COATES, JI
影响因子：
3.2
作者：
J. Hatt;R. Mayes;M. Clauss;M. Lechner-Doll
通讯作者：
J. Hatt;R. Mayes;M. Clauss;M. Lechner-Doll
影响因子：
4.1
作者：
UDEN, P;COLUCCI, PE;VANSOEST, PJ
通讯作者：
VANSOEST, PJ
影响因子：
0.8
作者：
D. M. Stevens;J. V. Ryssen;J. Marais
通讯作者：
D. M. Stevens;J. V. Ryssen;J. Marais