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Growth performance and nitrogen metabolism in weaned pigs fed diets containing different sources of starch

文献类型： 外文期刊

作者： Li, T. J. 1 ; Huang, R. L. 2 ; Wu, G. Y. 2 ; Lin, Y. C. 3 ; Jiang, Z. Y.; Kong, X. F.; Chu, W. Y.; Zhang, Y. M.; 1 ;

作者机构： 1.Chinese Acad Sci, Inst Subtrop Agr, Lab Anim Nutr & Hlth, Changsha 410125, Peoples R China

2.Chinese Acad Sci, Inst Subtrop Agr, Lab Anim Nutr & Hlth, Changsha 410125, Peoples R China; Chinese Acad Sci, Inst Subtrop Agr, Key Lab Subtrop Agroecol, Changsha 410125, Peoples R China; Texas A&M Univ, Dept Anim Sci, College Stn, TX 77843 USA; Guangdong Acad Agr Sci, Inst Anim Sci, Guangzhou 510640, Peoples R China; Tanke Ind Co, Guangzhou 510627, Peoples R China; Univ Guelph, Dept Anim & Poultry Sci, Ctr Nutr Modelling, Guelph, ON N1G 2W1, Canada

3.Chinese Acad Sci, Inst

关键词： performance;nitrogen metabolism;starch;weaned pigs

期刊名称：LIVESTOCK SCIENCE （ 影响因子：1.943； 五年影响因子：2.252 ）

ISSN： 1871-1413

年卷期： 2007 年 109 卷 1-3 期

页码：

收录情况： SCI

摘要： This study was conducted to determine the performance and N metabolism in weaned pigs fed diets containing different sources of starch. Pigs were weaned at 28 days of age, and assigned randomly into 4 soybean meal-based diets containing different sources of starch: corn, brown rice, sticky rice, and Hi-Maize 1043 (resistant starch). There were 12 pigs per treatment group in the growth performance trial. Additionally, a 4 x 4 Latin design was used for a nitrogen (N) balance study, with 5 days for each experimental period (n = 4). Average daily gains were 0.38, 0.34, 0.31, and 0.28 kg/day (P < 0.01), respectively, for pigs fed the corn, brown rice, sticky-rice, and Hi-Maize 1043 diets. Feed:gain ratios were 1.65, 1.78, 1.95, and 1.86 (P < 0.01), for the above 4 diets, respectively. Fecal N and urinary N excretion as well as the apparent fecal digestibility of crude protein in pigs fed the corn, brown rice, and sticky-rice diets were higher (P < 0.01) compared with pigs fed the Hi-Maize 1043 diet. Collectively, our results indicate that dietary sources of starch affected both growth performance and N utilization in weaned pigs. (c) 2007 Elsevier B.V. All rights reserved.

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