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Asian-Australas J Anim Sci > Accepted Articles
DOI: https://doi.org/10.5713/ajas.20.0508    [Accepted] Published online October 14, 2020.
Effects of inulin diet supplementation on production performance, gut traits, and incidence of ascites in Haidong chicks under hypoxic conditions
Baoan Ding1,*  , Lingyun Chen1, Hao Lin1, Xiezhong Wang2  , Licheng Zhang2  , Xiaoming Ni1, Andrea Pirone3  , Stephen R. Madigosky4, Baldassare Fronte3 
1State Key Laboratory of Plateau Ecology and Agriculture, College of Agriculture and Animal Husbandry, Qinghai University, Xining, 810016, China
2Qinghai Animal Disease Control Center, 810001 Xining, China
3Dipartimento di Scienze Veterinarie, Università di Pisa, Viale delle Piagge 2, 56124, Pisa, Italy
4Department of Environmental Science and Biology, One University Place. Widener University, Chester, Pennsylvania, USA
Correspondence:  Baoan Ding,Email: dingbaoan1967@aliyun.com
Received: 21 July 2020   • Revised: 23 August 2020   • Accepted: 21 July 2020
Abstract
Objective
Effects of inulin supplementation in diet of Haidong chicks under hypoxic conditions on production performance, intestinal morphologic change, microflora contents and the incidence of ascites.
Methods
Commercial male chicks (360) were randomly divided into 6 groups and were fed diets supplemented with 0, 0.05, 0.075, 0.1, 0.125 and 0.15 g/kg of inulin, respectively.
Results
The body weight gain and feed intake were improved in chicks fed the diets supplemented with 0.1 and 0.125 g/kg of inulin, from d 1 to d 42 (P<0.05); moreover, blood parameters were positively affected when inulin was included in the diets and the thickness of the intestinal wall and muscle tissue in duodenum, jejunum and ileum tended to increase (P<0.05), and the villi height and crypt depth in duodenum, jejunum, and ileum (P<0.05). Regarding the number of goblet cells in duodenum, jejunum and ileum tended to increase when chicks were fed the diets supplemented with 0.075, 0.1, 0.125 and 0.15 g/kg (P<0.05) of inulin. When chicks were fed diets supplemented with 0.75 or 0.1 g/kg of inulin, a significant reduction of Escherichia coli counts in the cecum was observed; for a contrary, a significant increment of Bifidobacterium and Lactobacillus was observed in cecum and ileum. Finally, supplementing the feed with inulin determined an overall reduction of ascites incidences in comparison to the control group.
Conclusion
Thus, the results observed in the present study clearly suggest that the diet supplementation with a quantity of inulin ranging between 0.1 and 0.125 g/kg, can improve growth performances, intestinal morphology, internal microbial balance and ascites incidence, in broiler chicks raised at high altitude area. Even though these findings may be of interest for the poultry industry, they may particularly be relevant in those areas characterized by high altitude such as Northwest China regions.
Keywords: Haidong Chicks Performance; Ascites; Gut Traits; Inulin; Nutrition


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