Effects of Dry Brewer's Grain on Performance, Serum Biochemical Indices and Gastrointestinal Tract Development of Jianchang Ducks Aged from 31 to 59 Days

WANG Yanru, ZENG Qiufeng, ZHANG Keying, DING Xuemei, BAI Shiping, LUO Yuheng, WANG Jianping, XUAN Yue, SU Zhuowei

doi:10.3969/j.issn.1006-267x.2016.03.021

2016 , Vol. 28 >Issue 3: 807 - 815

DOI: https://doi.org/10.3969/j.issn.1006-267x.2016.03.021

Feed Resources Development

Effects of Dry Brewer's Grain on Performance, Serum Biochemical Indices and Gastrointestinal Tract Development of Jianchang Ducks Aged from 31 to 59 Days

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Key Laboratory for Animal Disease Resistance Nutrition of the Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, Ya'an 625014, China

Received date: 2015-10-09

Online published: 2016-03-14

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Abstract

The objective of this study was to determine the effect of dietary dry brewer's grain (DBG) level on growth performance, serum biochemical indices and gastrointestinal tract development of ducks aged from 31 to 59 days. A total of 420 thirty-one-day-old Jianchang ducks were randomly allocated to 5 groups with 6 replicates per group and 14 ducks per replicate. Ducks in the 5 groups were fed the experimental diets supplemented with 0, 15%, 30%, 45% and 60% DBG, respectively. The experiment was finished at 59 days of age. The results showed as follows: the body weight of 59 days of age, body weight gain, feed to gain and the 4^th wing feather length showed a linearly or quadratically change (P<0.05), and the performance of 60% DBG group was significantly lower than that of other groups (P<0.05). The concentrations of globulin, total protein, triglyceride and low density lipoprotein in serum linearly reduced with dietary DBG increasing (P<0.05), whereas the activities of glutamic-pyruvic transaminase and alkaline phosphatase were linearly increased (P<0.05). The relative length, weight and capacity of the duodenum, the relative length and capacity of ileum, the relative weight of cecum and gizzard linearly increased with dietary DBG increasing (P<0.05). The optimal level of DBG in diets was 17.4%, 16.1% and 18.94% based on body weight gain, feed to gain and the 4^th primary wing feather length, respectively, by quadratic regression. These result suggest that 15.00% to 18.94% DBG in diet of ducks from 31 to 59 days of age is benefit based on digestible amino acid, and the highest DBG level can get to 45%.

Key words： Jianchang ducks; performance; gastrointestinal tract development; serum biochemical indices; dry brewer's grain

Cite this article

WANG Yanru, ZENG Qiufeng, ZHANG Keying, DING Xuemei, BAI Shiping, LUO Yuheng, WANG Jianping, XUAN Yue, SU Zhuowei . Effects of Dry Brewer's Grain on Performance, Serum Biochemical Indices and Gastrointestinal Tract Development of Jianchang Ducks Aged from 31 to 59 Days[J]. Chinese Journal of Animal Nutrition, 2016 , 28(3) : 807 -815 . DOI: 10.3969/j.issn.1006-267x.2016.03.021

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