Heme and Non-heme iron on growth performances, blood parameters, tissue mineral concentration, and intestinal morphology of weanling pigs.
Heme and Non-heme iron on growth performances, blood parameters, tissue mineral concentration, and intestinal morphology of weanling pigs.
复制标题
血红素和非血红素铁对断奶仔猪生长性能、血液参数、组织矿物质浓度和肠道形态的影响。
DOI：
10.1007/s12011-018-1385-z
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发表时间：
2018
影响因子：
3.9
通讯作者：
Jie Feng
中科院分区：
文献类型：
--
作者：
Zhao Zhuo;Xiaonan Yu;Sisi Li;Shenglin Fang;Jie Feng
本试验旨在评价血红素铁源和非血红素铁源对断奶仔猪生长性能、血液参数、组织矿物质浓度和肠道形态的影响。2 5日龄时，将32头断奶仔猪(杜洛克 × 长白 × 约克夏；8.66 ± 0.59g/kg)随机分为对照组(基础日粮不加铁)、FeSO4组(基础日粮+ 100mgFe/kg作为FeSO4)、甘氨酸铁组(基础日粮+ 100mgFe/kg作为FeGly)和血红素组(基础日粮+ 100mgFe/kg作为血红素)。每个处理有八个重复，每个重复一头猪。实验持续了28天。结果表明，与基础日粮相比，添加100 mg/kg铁可以提高仔猪的日增重，尤其是在试验后期(15~28天)。与其他铁源相比，血红素显著提高了仔猪背最长肌的a*值(P<； )。与FeSO4和基础日粮相比，补铁对血液学指标无显著影响，而甘氨酸铁和血红素提高了28日龄猪的血清铁含量(P<； )。饲喂甘氨酸铁和血红素的猪的肝脏铁沉积也高于饲喂硫酸亚铁和基础日粮的猪(P<； 0.05)。日粮补铁显著增加十二指肠绒毛高度(P<； 0.095)，有增加十二指肠绒毛高度和隐窝深度的趋势(P= 0.05)。综上所述，日粮中添加铁可以改善仔猪体内铁状态和肠道发育，但甘氨酸铁和血红素的生物利用度优于传统的硫酸亚铁添加剂。
This experiment was conducted to evaluate the effects of heme and non-heme iron sources on growth performances, blood parameters, tissue mineral concentration, and intestinal morphology in weanling pigs. At 25 days of age, 32 newly weaned piglets (Duroc × Landrace × Yorkshire; 8.66 ± 0.59 kg) were allocated to one of the following dietary treatments: control group (basal diet with no extra iron addition), FeSO4group (basal diet + 100 mg Fe/kg as FeSO4), Fe-Gly group (basal diet + 100 mg Fe/kg as Fe-Gly), and Heme group (basal diet + 100 mg Fe/kg as Heme). Each treatment had eight replicates and one pig per replicate. The experiment lasted for 28 days. The results showed that compared with basal diet, supplement with 100 mg/kg iron can increase ADG of the piglets, especially in the late experiment period (15~28 days). Heme significantly increased thea* value of longissimus dorsi muscle of piglets when compared with other iron sources (P< 0.05). The iron supplementations had no significant effect on hematological parameters, while Fe-Gly and heme increased pigs’ serum iron content on day 28 when compared with FeSO4and basal diet (P< 0.05). The liver iron deposition in pigs fed Fe-Gly and heme was also higher than those fed FeSO4or basal diet (P< 0.05). Besides, diet supplement with iron significantly increased villus height (P< 0.05) in duodenum and it had tendency to increase villus height and crypt depth ratio in duodenum (P= 0.095). In conclusion, iron supplementation in diets can improve piglet’s body iron state and intestinal development, but Fe-Gly and heme exhibited better bioavailability than traditional additive of FeSO4.