期刊论文

Sun, Zhihong;Yin, Yulong;Jiang, Qingyan;Zhu, Weiyun

英文

JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY

0021-8561

2018

66

31

8262-8271

10.1021/acs.jafc.8b03299

*Phone: +86-20-85281547. Fax: +86-20-85281547. E-mail: qyjiang@scau.edu.cn. *Phone: +86-25-84395366. Fax: +86-25-84395366. E-mail: zhuweiyun@njau.edu.cn. *Phone: +86-731-84615204. Fax: +86-731-84612685. E-mail: yinyulong@isa.ac.cn. *Phone: +86-23-68251196. Fax: +86-23-68251196. E-mail: sunzh2002cn@aliyun.com. ORCID Zhihong Sun: 0000-0001-8465-4631 Author Contributions △L.W., X.Z., and Z.T. contributed equally to this work. Funding We gratefully acknowledge the National Science and Technology Major Project of China (Grant 2017YFD0500504), the National Natural Science Foundation of China (Grant 31772610), and the National “948” Project from the Ministry of Agriculture of China (Grant 2015Z74). Notes The authors declare no competing financial interest.

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Reducing dietary crude protein (CP) intake effectively decreases nitrogen excretion in growing-finishing pigs but at the expense of poor growth when dietary CP content is reduced by ≥3%. In this study, we investigated the main disadvantages of low-protein diets supplemented with lysine, methionine, threonine, and tryptophan in pigs. First, changes in the nitrogen balance in response to differences in dietary CP content (18%, 15%, and 13.5%) were investigated in barrows (40 kg). Then, barrows (40 kg) surgically fitted with catheters in the mese...