Pre- and post-pellet whole grain inclusions enhance feed conversion efficiency, energy utilisation and gut integrity in broiler chickens offered wheat-based diets

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• 作者：Ha H. Truong^a ; ^b ; Amy F. Moss^a ; Sonia Yun Liu^a ; Peter H. Selle^a ; ^{peter.selle@sydney.edu.au}
• 关键词：AIA ; acid insoluble ash ; AME ; apparent metabolisable energy ; FCR ; feed conversion ratio ; GE ; gross energy ; ME ; metabolisable energy ; N ; nitrogen ; NIR ; near infrared spectroscopy ; NSP ; non-starch polysaccharide
• 刊名：Animal Feed Science and Technology
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：224
• 期：Complete
• 页码：115-123
• 全文大小：504 K
• 卷排序：224

文摘

Whole wheat inclusions had substantially greater impacts when added post-pelleting in comparison to pre-pelleting inclusions. Post-pellet inclusions increased relative gizzard weights, reduced gizzard pH and the incidence of dilated proventriculi. Post-pellet whole wheat improved FCR by 4.25%, increased AME by 0.81 MJ and ME:GE ratios by 6.00% (0.742 versus 0.700). Post-pellet whole wheat inclusions reduced distal ileal starch concentrations by 50.4% (7.21 versus 14.53 g/100 g). The advantages of whole grain feeding which appeared to be driven by greater extents of starch digestion allied to heavier relative gizzard weights.