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Asian-Australas J Anim Sci > Accepted Articles
DOI: https://doi.org/10.5713/ajas.18.0863    [Accepted] Published online May 28, 2019.
Effects of sweetener sucralose on diet preference, growth performance and hematological and biochemical parameters of weaned piglets
Wenwei Zhang1, Holden He2, Limin Gong1, Wenqing Lai1, Bing Dong1, Liying Zhang1,*
1State Key Laboratory of Animal Nutrition, Ministry of Agriculture Feed Centre, China Agricultural University, No.2 Yuanmingyuan West Road, Beijing, 100193, China
2Nanjing Jinhe Yikang Biotechnology, No. 15 Wanshou road, Jiangbei New Area, Nanjing, 210043, China
Correspondence:  Liying Zhang, Tel: +86-10-6273-1272, Fax: +86-10-6273-3688, Email: zhangliying01@sina.com
Received: 17 November 2018   • Revised: 1 February 2019   • Accepted: 25 May 2019
Abstract
Objective
Two experiments were conducted to investigate the effects of dietary sucralose on diet preference and growth performance of weaned piglets, and a third experiment was a 28-d safety study to examine if high-dose sucralose could affect the health state of weaned piglets.
Methods
In experiment one, 48 piglets had free access to a corn-soybean based diet and the same diet supplemented with 150 mg/kg sucralose for 15 d. In experiment two, 180 piglets were blocked into 5 treatments with 6 replications. They were fed basal diets supplemented with 0, 75, 150, 225, and 300 mg/kg sucralose for 28 days. In experiment three, 108 piglets were randomly assigned to 3 treatments and fed diets supplemented with 0, 150 (suitable level), and 1,500 (ten-fold suitable level) mg/kg sucralose for 28 d.
Results
The experiment 1 showed that piglets preferred (p < 0.05) diets containing sucralose during experimental period. In experiment 2, piglets fed a diet supplemented with 150 mg/kg sucralose had a higher average daily gain (ADG) and average daily feed intake (ADFI) than pigs in the control group and other treatment groups during the experiment period. The concentrations of sucralose over 150 mg/kg may decrease feed intake. However, no difference in feed conversion ratio was observed. In experiment 3, piglets fed diet supplemented with 150 mg/kg sucralose had a higher average daily gain (ADG) and average daily feed intake (ADFI) than that of pigs in the control group and 1500 mg/kg treatment groups during the experiment period. Clinical blood metabolites, organ index and histological morphology were not significantly different between sucralose treatments.
Conclusion
Sucralose can promote feed intake and thereby improve growth performance of weaned piglets. Moreover, inclusion of 1,500 mg/kg sucralose was demonstrated to have no observed adverse effects. Supplementing 150 mg/kg sucralose for weaned piglets is recommended in this study.
Keywords: Sucralose; Weaned Piglet; Diet Preference; Growth Performance; Hematological Parameter


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