Schneider A F, Almeida D S De, Yuri F M, Zimmermann O F, Gerber M W, Gewehr C E
a Animal Production and Food , Santa Catarina State University , Lages , Brazil.
Br Poult Sci. 2016 Apr;57(2):257-63. doi: 10.1080/00071668.2016.1150962.
This study aims to analyse the influence of adding natural zeolites (clinoptilolite) to the diet or litter of broilers and their effects on growth performance, carcass yield and litter quality. Three consecutive flocks of broilers were raised on the same sawdust litter, from d 1 to d 42 of age, and distributed in three treatments (control with no added zeolites, addition of 5 g/kg zeolite to diet and addition of 100 g/kg zeolites to litter). The addition of zeolites to the diet or litter did not affect growth performance or carcass yield. The addition of zeolites to the diet did not influence moisture content of the litter, ammonia volatilisation was reduced only in the first flock and pH of litter was reduced in the second and third flock. However, the addition of zeolites to the litter reduced moisture content, litter pH and ammonia volatilisation in all flocks analysed. The addition of 5 g/kg zeolite to the diet in three consecutive flocks was not effective in maintaining litter quality, whereas the addition of 100 g/kg natural zeolites to sawdust litter reduced litter moisture and ammonia volatilisation in three consecutive flocks raised on the same litter.
本研究旨在分析在肉鸡日粮或垫料中添加天然沸石（斜发沸石）的影响及其对生长性能、胴体产量和垫料质量的作用。连续三批肉鸡在相同的锯末垫料上饲养，从1日龄至42日龄，并分为三种处理方式（不添加沸石的对照组、日粮中添加5 g/kg沸石以及垫料中添加100 g/kg沸石）。在日粮或垫料中添加沸石对生长性能或胴体产量没有影响。日粮中添加沸石对垫料的水分含量没有影响，仅在第一批肉鸡中氨气挥发减少，而在第二批和第三批肉鸡中垫料pH值降低。然而，在所有分析的批次中，向垫料中添加沸石均降低了水分含量、垫料pH值和氨气挥发。在连续三批肉鸡日粮中添加5 g/kg沸石对维持垫料质量无效，而在相同垫料上饲养的连续三批肉鸡中，向锯末垫料中添加100 g/kg天然沸石可降低垫料水分和氨气挥发。
