Effects of Fermentation Diets of Different Supplementation on Growth Performance, Serum Biochemical Indexes and Immune Indexes of Meat Geese at 1 to 55 Days of Age
NIU Zikang1,2, YE Chengzhi2, ZHANG Xinrui2, HUAN Hailin2, LIN Yong2, ZHOU Weiren2, HUANG Jian3, WANG Sheng3, LIU Yanling3, YAN Junshu2, ZHANG Zhongyuan1
1. Institute of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China;
2. Institute of Animal Husbandry, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China;
3. Nanjing Baohui Biological Feed Co., Ltd., Nanjing 211100, China
Abstract:This study was designed to investigate the effects of fermented diets of different supplementation on the growth performance and serum biochemical indexes and immune indexes of meat geese at 1 to 55 days of age. A total of 720 healthy, 1-day-old meat geese were randomly divided into 4 groups with 6 replicates and 30 replicates each in a completely randomized trial design. Meat geese in the control group fed a basal diet, and those in the experimental groups fed the basal diet added with 2.5%, 5.0% and 7.5% fermented diets, respectively. The experiment lasted for 55 d, which included 2 stages of 1 to 15 days of age and 16 to 55 days of age. The results showed that compared with control group, there were no significant differences in final weight, average daily gain (ADG), average daily feed intake (ADFI) and feed/gain (F/G) in the three test groups (P>0.05), final weight in 2.5%, 5.0% and 7.5% groups increased by 1.94%, 1.79% and 2.56%, respectively; ADG in 2.5%, 5.0% and 7.5% groups increased by 1.97%, 1.82% and 2.57%, respectively. In terms of serum biochemical indexes, compared with the control group, the activities of alkaline phosphatase (AKP) and acid phosphatase (ACP) and the content of triglyceride (TG) in serum in 2.5% group were not significantly different (P>0.05). Serum AKP and ACP activities and the content of TG in 5.0% and 7.5% groups were significantly reduced (P<0.05), the activity of AKP in serum decreased by 55.48% and 59.59%, and the activity of ACP decreased by 37.28% and 43.79%, and the content of TG decreased by 30.25% and 16.67%, respectively. There was no significant difference between the control group and the test groups in serum immune indexes (P>0.05). Combined with each index, the feeding effects of adding 7.5% fermented diet in the diets of geese at 1 to 55 days of age are better than those of adding 2.5% and 5.0% fermented diets.
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NIU Zikang, YE Chengzhi, ZHANG Xinrui, HUAN Hailin, LIN Yong, ZHOU Weiren, HUANG Jian, WANG Sheng, LIU Yanling, YAN Junshu, ZHANG Zhongyuan. Effects of Fermentation Diets of Different Supplementation on Growth Performance, Serum Biochemical Indexes and Immune Indexes of Meat Geese at 1 to 55 Days of Age. Chinese Journal of Animal Nutrition, 2020, 32(7): 3412-3419.
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