Effects of whole wheat with or without xylanase supplementation on performance of layers and digestive organ development
Küçük Resim Yok
Tarih
2009
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Assoc Sci Produzione Animale-Aspa
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
An experiment was conducted using Bovans White layers to investigate the effects of 30% whole-wheat inclusion in a standard layer diet supplemented with xylanase, on laying performance, digestive organs and ileal mucosa development. Three dietary treatments were used: 1) control diet (30% ground wheat); 2) 30% whole wheat; 3) whole wheat+wheat xylanase. Xylanase was added to whole wheat at 150g/ton. Including the pre-experimental period the trial lasted for 13 weeks. Xylanase supplementation to whole wheat significantly (P<0.05) improved egg production and feed conversion rate compared to the ground wheat and whole wheat fed groups. Gizzard pH was not affected by dietary treatments, while whole wheat feeding significantly (P<0.05) reduced jejuno-ileal pH and increased gizzard and jejuno-ileal viscosity compared to the ground wheat fed and xylanase supplemented groups. Proventriculus, gizzard, duodenum, jejunum, ileum, caecum, colon and liver weights were not significantly affected by dietary treatments. Feeding whole wheat w/wo xylanase supplementation significantly (P<0.05) increased crypt depth but did not affect lamina muscularis mucosae thickness.
Açıklama
Anahtar Kelimeler
Whole Wheat, Xylanase, Gut Histomorphology, Viscosity, Layers, Apparent Metabolizable Energy, Broiler-Chickens, Tract Measurements, Gut Morphology, Poultry Diets, Male Turkeys, Cereals, Growth, Barley
Kaynak
Italian Journal Of Animal Science
WoS Q Değeri
Q4
Scopus Q Değeri
Q1
Cilt
8
Sayı
2
