Fu, Bingzhe

Mi, Fugui

Na, Risu

Ning, Hongmei

English

University of Kentucky

University of Kentucky UKnowledge International Grassland Congress Proceedings XXI International Grassland Congress / VIII International Rangeland Congress Dynamic Analysis of Nutrient Composition and Digestibility of Cichorium intybus in Hohhot Bingzhe Fu Inner Mongolia Agricultural University, China Fugui Mi Inner Mongolia Agricultural University, China Risu Na Inner Mongolia Agricultural University, China Hongmei Ning Inner Mongolia Agricultural University, China Follow this and additional works at: https://uknowledge.uky.edu/igc  Part of the Plant Sciences Commons, and the Soil Science Commons This document is available at https://uknowledge.uky.edu/igc/21/15-2/5 The XXI International Grassland Congress / VIII International Rangeland Congress took place in Hohhot, China from June 29 through July 5, 2008. Proceedings edited by Organizing Committee of 2008 IGC/IRC Conference Published by Guangdong People's Publishing House This Event is brought to you for free and open access by the Plant and Soil Sciences at UKnowledge. It has been accepted for inclusion in International Grassland Congress Proceedings by an authorized administrator of UKnowledge. For more information, please contact UKnowledge@lsv.uky.edu. 瞯 702　 瞯 　 Multifunctional Grasslands in a Changing World 　 Volume Ⅱ 　Grasslands/Rangelands Production Systems ——— Forage Quality ,Conservation and UtilizationDynamic analysis of nutrient composition and digestibility of Cichorium intybus in HohhotFu Bing‐zhe Mi Fu‐gui Na Ri‐su Ning Hong‐meiCollege o f Ecology and Environment , Inner Mongolia Agricultural University ,Hohhot , 010018 , China . E‐mail :f bzhe19 ＠163 .comKey words :nutrient composition ,digestibility ,Cichorium intybus ,growth stage , crude proteinIntroduction Cichorium intybus belongs to Compositae family ,Chicory genera perennial herb ,which is a cold‐resistant , drought‐resistant , high yielding and good‐quality forage crop ( N .VanStallen ,２００５ ) . Nutritient contentt and digestibility of differentgrowth stages of Cichorium intybusv cultivated in Hohhot have been studied in this paper . The objective was to provideevidences for reviewing the nutritive values and confirming the best utilization stageMaterials and methods The mixture of stems and leaves randomly collected from two‐year‐old Cichorium intybus in Hohhot , atfive growth stages :in turning green stage ( TGS ) , bolting stage ( BOS ) , bud stage ( BUS ) , flowering stage ( FLS ) , and seedsetting stage ( SSS ) . We measured the crude protein content ( CP , Kai摧s method ) , crude fiber content ( CF , Acid and Alkalilotion method) 、crude fat content ( CRF , Ether extraction method ) , adsorbed water content ( ADW , Constant temperaturedryness ) , crude ash content ( ASH , Ashing method ) , digestibility ( DIG , Enzymolysis method ) , and nitrogen free extractcontent ( NFE , Difference calculation method) ( Na ri‐su , ２００６ ) .Results CP , ASH and ADW linearly increased with the advance of growth . From BUS to FLS , CP rapidly decreased ４ .５１ ％ .ASH and ADW decreased ２ .２７ ％ and ３ .８３ ％ , respectively , from BOS to BUS . CF has a maximal rise of ７ .８８ ％ between BOSand BUS . The changes of CRF and NFE are not obvious during the growth period ( Figure １ ) .With the advancing of growth ,DIG trended to decrease . There is no salient difference between BUS and FLS , but significant differences ( P ＜ ０ .０１ ) occurredamong the other growth stages . DIG decreased a maximum of ９ .５５ ％ from BOS to BUS ( Figure ２ ) .Figure 1 The nutrient composition o f di f f erent growth stages .Figure 2 The digestibility o f di f f erent growth stages .Conclusions CP ,ADW ,ASH and DIG decreased with advancing growth . CF increased from TGS to SSS . With advancinggrowth of Cichorium intybus , nutritive value and digestibility declined , which has obvious changes between bolting stage andbud stage . Therefore , the bolting stage and bud stage are deemed to the best harvest stage of Cichorium intybus .ReferencesN .VanStallen . QTL analysis of production and taste characteristics of chicory [ J] . Plant Breeding . １２４ , ５９‐６２ , (２００５ ) .Na ri‐su . Introduction , Culture and implication research of several silage Crops [D] . Inner Mongolia Agricultural Universitymaster摧s thesis , ２００６ .

Dynamic Analysis of Nutrient Composition and Digestibility of \u3ci\u3eCichorium intybus\u3c/i\u3e in Hohhot

https://uknowledge.uky.edu/cgi/viewcontent.cgi?article=3599&amp;context=igc

Dynamic Analysis of Nutrient Composition and Digestibility of \u3ci\u3eCichorium intybus\u3c/i\u3e in Hohhot

Abstract

Similar works

Full text

Available Versions

University of Kentucky