CLC number: S821.5
On-line Access: 2024-08-27
Received: 2023-10-17
Revision Accepted: 2024-05-08
Crosschecked: 2015-04-16
Cited: 9
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Li Wu, Liu-qin He, Zhi-jie Cui, Gang Liu, Kang Yao, Fei Wu, Jun Li, Tie-jun Li. Effects of reducing dietary protein on the expression of nutrition sensing genes (amino acid transporters) in weaned piglets[J]. Journal of Zhejiang University Science B, 2015, 16(6): 496-502.
@article{title="Effects of reducing dietary protein on the expression of nutrition sensing genes (amino acid transporters) in weaned piglets",
author="Li Wu, Liu-qin He, Zhi-jie Cui, Gang Liu, Kang Yao, Fei Wu, Jun Li, Tie-jun Li",
journal="Journal of Zhejiang University Science B",
volume="16",
number="6",
pages="496-502",
year="2015",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.B1400259"
}
%0 Journal Article
%T Effects of reducing dietary protein on the expression of nutrition sensing genes (amino acid transporters) in weaned piglets
%A Li Wu
%A Liu-qin He
%A Zhi-jie Cui
%A Gang Liu
%A Kang Yao
%A Fei Wu
%A Jun Li
%A Tie-jun Li
%J Journal of Zhejiang University SCIENCE B
%V 16
%N 6
%P 496-502
%@ 1673-1581
%D 2015
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.B1400259
TY - JOUR
T1 - Effects of reducing dietary protein on the expression of nutrition sensing genes (amino acid transporters) in weaned piglets
A1 - Li Wu
A1 - Liu-qin He
A1 - Zhi-jie Cui
A1 - Gang Liu
A1 - Kang Yao
A1 - Fei Wu
A1 - Jun Li
A1 - Tie-jun Li
J0 - Journal of Zhejiang University Science B
VL - 16
IS - 6
SP - 496
EP - 502
%@ 1673-1581
Y1 - 2015
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.B1400259
Abstract: The effects of crude protein (CP) levels in the diet on the mRNA expression of amino acid (AA) transporters were studied in a 45-d trial. Eighteen piglets with an initial body weight (BW) of 9.57 kg were assigned to three groups (14%, 17%, and 20% CP in the diet) in a completely randomized design (six replicates per treatment). Diets were supplemented with crystalline AA to achieve equal standardized ileal digestible contents of Lys, Met plus Cys, Thr, and Trp, and were provided ad libitum. After 45 d, all piglets were slaughtered to collect small intestine samples. Compared with the values in the 14% CP group, the expressions of ASCT2, 4F2hc, and ATB0 mRNA in the jejunum were increased by 23.00%, 12.00%, 6.00% and 48.00%, 47.00%, 56.00% in the 17% and 20% CP groups, respectively. These results indicate that a 14% CP diet supplemented with crystalline AA may not transport enough AA into the body and maintain growth performance of piglets. However, a reduction of dietary 17% CP may reduce the excretion of nitrogen into the environment while supporting the development of piglets. Therefore, the 17% CP level is more suitable than 14% CP level.
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