Effects of Cysteamine Chelated Zinc on Growth Performance, Serum Biochemical Indices, Nutrient Digestibility and Fecal Microbial Flora of Piglets

ZHU Yujing, WANG Haoran, LI Fangfang, ZHENG Lili, GAO Yuan, MENG Ling, GUO Fulai, DING Lan, MI Chuntao, ZHANG Yong

doi:10.3969/j.issn.1006-267x.2015.10.030

2015 , Vol. 27 >Issue 10: 3225 - 3232

DOI: https://doi.org/10.3969/j.issn.1006-267x.2015.10.030

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Effects of Cysteamine Chelated Zinc on Growth Performance, Serum Biochemical Indices, Nutrient Digestibility and Fecal Microbial Flora of Piglets

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1. College of Animal Sciences and Veterinary Sciences, Shenyang Agricultural University, Shenyang 110866, China;
2. Liaoning Debao Argi-Animal Husbandry Co., Ltd., Shenyang 110171, China;
3. Shen Yang Fukang Agriculture and Animal Husbandry Technology Co., Ltd., Shenyang 110164, China

Received date: 2015-04-22

Online published: 2015-10-15

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Abstract

The experiment was conducted to investigate the effects of dietary supplemented with cysteamine chelated zinc (Zn-CS) on growth performance, serum biochemical indices, nutrient digestibility and fecal microbial flora of piglets.Two hundreds piglets with average body weight of (10.15±1.38) kg were randomly divided into 5 group with 4 replicates per group and 10 piglets per replicate.Piglets in the control group were fed a basal diet, and the other in the experimental groups were fed the basal diet supplemented with 24, 32, 40 and 48 mg/kg Zn-CS.The trial last for 28 days.The results showed as follows: 1) dietary supplemented with Zn-CS had significant effects on average daily gain (ADG) of piglets during any experiment period (P<0.05).The ADG of 48 mg/kg group was significantly higher than that of control group during 1 to 14 days (P<0.01).The ADG of 48 mg/kg group was significantly higher than that of control group during 15 to 28 days and 1 to 28 days (P<0.05).The feed to gain of 48 mg/kg group was significantly lower than that of control group during 15 to 28 days (P<0.01).The diarrhea rate of 32, 40 and 48 mg/kg groups was significantly lower than that of control group during 1 to 28 days (P<0.01).2) Dietary supplemented with Zn-CS had significant effects on the content of growth hormone, triiodothyronine, thyroxine, insulin, immunoglobulin A, immunoglobulin G in serum and T-lymphocytes conversion rate (P<0.05 or P<0.01).3) The digestibility of dry matter, crude protein, ether extract and calcium of 40 and 48 mg/kg groups was significantly higher than those of control group (P<0.05).The fecal E.coli number of experimental groups was significantly lower than that of control group (P<0.05).All over, the right amount of Zn-CS added in diets can effectively increase growth performance, decrease diarrhea rate, improve immune function, and improve nutrient digestibility of piglets.It is conclude that the suitable dietary Zn-CS supplemental level of piglets is 48 mg/kg.

Key words： Zn-CS; piglets; growth performance; nutrient digestibility; fecal microflora flora; serum biochemical indices

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ZHU Yujing, WANG Haoran, LI Fangfang, ZHENG Lili, GAO Yuan, MENG Ling, GUO Fulai, DING Lan, MI Chuntao, ZHANG Yong . Effects of Cysteamine Chelated Zinc on Growth Performance, Serum Biochemical Indices, Nutrient Digestibility and Fecal Microbial Flora of Piglets[J]. Chinese Journal of Animal Nutrition, 2015 , 27(10) : 3225 -3232 . DOI: 10.3969/j.issn.1006-267x.2015.10.030

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