嘉吉营养方案之——改善蛋壳品质-Henk Enting.pdf

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1、改善蛋壳质量Improvingeggshellqualitydr.HenkEnting家禽技术总监PoultryTechnologyDirector嘉吉动物营养CargillAnimalNutritionCONFIDENTIAL.Thisdocumentcontainstradesecretinformation.Disclosure,useorreproductionoutsideCargillorinsideCPNChina-eggshellqualityCargill,toorbythoseemployeeswhodon

2、othaveaneedtoknowisprohibitedexceptasauthorizedbyCargillinwriting.-August2016©2013Cargill,Incorporated.Allrightsreserved.©2013Cargill,Incorporated.Allrightsreserved.改善蛋壳质量Improvingeggshellquality主要内容MAINTOPICS•改善蛋壳强度Improvementofeggshellstrength•蛋壳的代谢及形成Eggshellmeta

3、bolism,eggshellformation•改善蛋壳强度的战略Strategiestoimproveeggshellstrength•改善蛋壳颜色Improvementofeggshellcolor•影响蛋壳颜色的因素Factorsaffectingeggshellcolor•试验数据概览：如何改善蛋壳颜色？Overviewoftrialdata:howtoimproveeggshellcolor2CPNChina-eggshellquality-August2016©2013Cargill,Incorporated.A

4、llrightsreserved.改善蛋壳强度Improvingeggshellstrength背景信息BACKGROUND•较老的蛋鸡肝功能下降维生素D向1,25(OH)D（调节钙的代谢的活性323物质）的转化减弱Inolderhens,liverfunctiondeclines→lessgoodconversionofvitaminD3into1,25(OH)2D3(theactivesubstancethatregulatesCametabolism)•蛋重会随着日龄的增长提高，但蛋壳却不会相对蛋壳重量下降Eggwe

5、ightincreaseswithagewhiletheamountofeggshelldoesnotincreasewithage→relativelowereggshellweight•小肠上皮绒毛细胞退化降低营养物质的吸收效率Deteriorationofthecellsinthevillioftheintestinalepithelium→lessefficientnutrientabsorption•蛋壳细胞膜中胶原蛋白的弹性下降Reducedelasticityofthecollagenintheeggshell

6、membranes•较老的蛋鸡乳头状基质的密度降低（钙的基质）破蛋碎蛋的数量提高每只蛋鸡的养殖收益降低Lowerdensityofmammilarycores(Camatrix)inolderbirds→Increasednumberofbrokenandcrackedeggs→lessearningsperbird3CPNChina-eggshellquality-August2016©2013Cargill,Incorporated.Allrightsreserved.背景信息Background生产循环中的变化趋势C

7、HANGESONTHEEGGPRODUCTIVECYCLE4CPNChina-eggshellquality-August2016©2013Cargill,Incorporated.Allrightsreserved.改善蛋壳强度Improvingeggshellstrength常见问题PROBLEMS•钙和其他营养物质供应不足Insufficientsupplyofcalciumandothernutrients•钙的数量以及钙源AmountofCa,Casource•骨骼内储备钙的利用UseofCareservesinbo

8、nes•肠道对营养物质的吸收不足–传染病（鸡传染性支气管炎、肠道感染）Sub-optimalabsorptionofnutrientsfromtheintestinaltract-infections(infectiousbronchitis,intestinalinfect