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	Postnatal developmental changes of the small intestinal villus height, crypt depth and hexose transporter mrna expression in supplemental feeding and grazing goats
	Li, Hengzhi1,2; Ran, Tao1,2; He, Zhixiong1; Yan, Qiongxian1; Tang, Shaoxun1; Tan, Zhiliang1
刊名	Small ruminant research
	2016-08-01
卷号	141页码:106-112
关键词	Villus Crypt Hexose transporter Intestine Feeding regime Goat
ISSN号	0921-4488
DOI	10.1016/j.smallrumres.2016.07.012
通讯作者	Tan, zhiliang(zltan@isa.ac.cn)
英文摘要	This trial was conducted to investigate the effects of feeding system and age on morphological development (including villus height, crypt depth, and ratio of villus height to crypt depth) and expression of hexose transporters (i.e., sglt1, glut2 and glut5) in different segments of the small intestine of goat kids. a total of 40 liuyang black goat kids were randomly slaughtered at 0, 7, 28, 42, 56 and 70 days of age. there were two feeding systems [i.e., supplemental feeding (s) and grazing (g)] from 28 to 70 days of age. duodenal, jejunal and ileal tissues were collected to measure the villus height and crypt depth. mucosa samples were taken to quantify mrna or protein expression of sodium-dependent glucose-linked transporter-i (sglt1), facilitated glucose/fructose transporter 2 (glut2), and facilitated glucose transporter 5 (glut5). villus height was not affected (p > 0.05) by feeding system, and crypt depth was only affected (p < 0.001) by feeding system within the jejunum. moreover, villus height increased (p=0.006) with increasing age in the duodenum, whereas it decreased as age increased in the jejunum (p=0.040) and ileum (p < 0.001). additionally, the jejunal and ileal crypt depth linearly increased (p < 0.001) with increasing age in both s and g groups. the feeding system had a significant effect (p < 0.05) on mrna expression of sglt1, glut2 and gluts in the intestine, except for glut2 expression within the ileum. the mrna and protein expression of sglt1 and the mrna expression of glut2 and glut5 declined (p < 0.001) with increasing age in the jejunum and ileum. the present results indicate that supplemental feeding at an early age is beneficial to activate expression of sglt1, glut2 and gluts transporters in goats for an improved ability to absorb hexose. (c) 2016 elsevier b.v. all rights reserved.
WOS关键词	DIGESTIVE ENZYME-ACTIVITIES ; NEONATAL CALVES ; GASTROINTESTINAL-TRACT ; GLUCOSE COTRANSPORTER ; RUMEN DEVELOPMENT ; YOUNG GOATS ; SOY PROTEIN ; MORPHOLOGY ; ABSORPTION ; MUCOSA
WOS研究方向	Agriculture
WOS类目	Agriculture, Dairy & Animal Science
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000382274000019
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2375643
专题	中国科学院大学
通讯作者	Tan, Zhiliang
作者单位	1.Chinese Acad Sci, South Cent Expt Stn Anim Nutr & Feed Sci, Hunan Res Ctr Livestock & Poultry Sci,Minist Agr, Key Lab Agroecol Proc Subtrop Reg,Inst Subtrop Ag, Changsha 410125, Hunan, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Li, Hengzhi,Ran, Tao,He, Zhixiong,et al. Postnatal developmental changes of the small intestinal villus height, crypt depth and hexose transporter mrna expression in supplemental feeding and grazing goats[J]. Small ruminant research,2016,141:106-112.
APA	Li, Hengzhi,Ran, Tao,He, Zhixiong,Yan, Qiongxian,Tang, Shaoxun,&Tan, Zhiliang.(2016).Postnatal developmental changes of the small intestinal villus height, crypt depth and hexose transporter mrna expression in supplemental feeding and grazing goats.Small ruminant research,141,106-112.
MLA	Li, Hengzhi,et al."Postnatal developmental changes of the small intestinal villus height, crypt depth and hexose transporter mrna expression in supplemental feeding and grazing goats".Small ruminant research 141(2016):106-112.

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