Coarse corn particles cause a negative effect on eggshell quality of semi-heavy laying hens

作     者：Vanessa R.M.Oliveira Alex M.V.Arruda Aurora S.Melo Davyd H.Souza Joao B.F.Souza-Junior Raimunda T.V.Fernandes Joao P.A.F.Queiroz 

作者机构：Department of Animal SciencesUniversidade Federal Rural do Semi-AridoMossoro 59625900Brazil Department of Animal ScienceFederal University of CearaFortalezaCEP 60455-760Brazil 

出 版 物：《Animal Nutrition》 (动物营养（英文版）)

年 卷 期：2019年第5卷第4期

页      面：432-434页

核心收录：

学科分类：090502[农学-动物营养与饲料科学] 0905[农学-畜牧学] 09[农学] 

主　　题：Egg quality Geometric mean diameter Productive performance Poultry nutrition 

摘      要：One of the possible ways to optimize the productive performance of poultry is through the physical processing of ingredients,which can improve the use of nutrients in these *** this context,this study was to evaluate the effects of different corn particle sizes in diets on the productive performance and egg quality of semi-heavy laying *** naked neck laying hens were used from 24 weeks of age and distributed in a completely randomized *** diets in different treatments contained corn grain ground into sieves with a diameter of 2,4,or 8 mm to provide corn particles with a geometric mean diameter(GMD) of 605(fine),1,030(medium),and 2,280 μm(coarse),*** feed and leftovers were weighed daily throughout the experimental period to determine the feed intake and feed *** corn particle sizes did not affect any aspect of the productive performance of hens,except for feed *** fed fine and medium corn particles exhibited higher values for egg yolk color,eggshell weight,and eggshell *** is suggested that semi-heavy laying hens should be fed mash diets containing corn particles with GMD from 605 to 1,030 μm,because coarse corn particles cause a negative effect on eggshell quality.