期刊文献

High-fibre high-lipid by-product pellets containing calcium oxide-treated oat hulls as a partial replacement for barley grain in finishing diets for beef cattle 收藏

高纤维高脂质副产品颗粒，含有氧化钙处理的燕麦壳，作为肉牛精加工日粮中大麦籽粒的部分替代品

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作者

J.A. Johnson;[a] F. Joy;[a] J.J. McKinnon;[a][*] G.B. Penner[a][b]*

作者单位

[a]Department of Animal and Poultry Science, University of Saskatchewan, Saskatoon, SK S7H4L3, Canada.; [b]Department of Animal and Poultry Science, University of Saskatchewan, 51 Campus Drive, Saskatoon, SK S7N 5A8, Canada.

关键词

by-product pellet, calcium oxide, feedlot

关键词译文

副产品颗粒，氧化钙，饲养场

发布日期

19 April 2018

页码

656-666

DOI

10.1139/cjas-2017-0111

来源信息

Canadian Journal of Animal Science ISSN：0008-3984, 2018年, 98卷, 4期, 656-666页

摘要

Two studies were conducted to evaluate the effects of treating oat hulls with calcium oxide (CaO) prior to inclusion in a high-lipid by-product pellet (HLP) on dry matter intake (DMI), ruminal fermentation, and total-tract digestibility (Study 1) and growth performance (Study 2). In Study 1, six ruminally cannulated heifers were used in a replicated 3 × 3 Latin square design. Study 2 used 210 steers in 21 pens in a 113 d finishing study. Dietary treatments for both studies included a barley-based control diet (CON), a diet where HLP partially replaced barley grain (NT-HLP), and a diet where HLP contained oat hulls treated with 7.5% CaO [dry matter (DM) basis; CaO-HLP]. For Study 1, DMI and ruminal pH were not affected. Apparent total-tract digestibility of DM and organic matter (OM) were greater (P < 0.05) for CON than NT-HLP and CaO-HLP. In Study 2, final body weight tended to be greater for NT-HLP and CaO-HLP than CON (P = 0.065). For CaO-HLP and NT-HLP, DMI was greater than CON (P < 0.01), but average daily gain (ADG) (2.0 kg d⁻¹) and gain:feed (G:F) (0.16 kg kg⁻¹) were not different. Thus, HLP can partially replace barley grain in finishing diets without negatively affecting ruminal fermentation or growth performance, but treatment with CaO has no effect.

摘要译文

两项研究旨在评估在加入高脂质副产品颗粒（HLP）干物质摄入量（DMI），瘤胃发酵和全肠道消化率之前，用氧化钙（CaO）处理燕麦壳的效果（研究1）和生长性能（研究2）。在研究1中，六个瘤式插管小母牛用于复制的3×3拉丁方设计。研究2在113天的完成研究中使用21个笔中的210个阉牛。两项研究的膳食治疗包括基于大麦的对照饮食（CON），HLP部分替代大麦谷物（NT-HLP）的饮食，以及HLP含有以7.5％CaO [干物质（DM）为基础处理的燕麦壳的饮食;的CaO-HLP。对于研究1，DMI和瘤胃pH不受影响。对于CON，DM和有机物（OM）的表观总通道消化率比NT-HLP和CaO-HLP更高（P <0.05）。在研究2中，NT-HLP和CaO-HLP的最终体重倾向于大于CON（P = 0.065）。对于CaO-HLP和NT-HLP，DMI大于CON（P <0.01），但平均日增重（ADG）（2.0 kg d ^{-1 ）和增益：饲料（G：F）（0.16 kg kg ^{-1 ）没有差异。因此，HLP可以在整理日粮中部分替代大麦籽粒而不会对瘤胃发酵或生长性能产生负面影响，但用CaO处理没有效果。}}

J.A. Johnson;[a] F. Joy;[a] J.J. McKinnon;[a][*] G.B. Penner[a][b]*. High-fibre high-lipid by-product pellets containing calcium oxide-treated oat hulls as a partial replacement for barley grain in finishing diets for beef cattle[J]. Canadian Journal of Animal Science, 2018,98(4): 656-666