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试验旨在研究以甘氨酸铁和甘氨酸锌螯合物部分替代无机铁和锌对断奶仔猪生长性能及日粮营养物质表观消化率的影响。选取204头(25±2)日龄和体质量(7.55±0.31)kg相近的健康三元(杜×长×大)杂交仔白猪,随机分为对照组和试验Ⅰ组、试验Ⅱ组和试验Ⅲ组,每组3个重复,每重复17头,各组间均质量无显著差异(P>0.05)。对照组白猪饲喂110 mg/kg硫酸亚铁+110 mg/kg硫酸锌的基础日粮,试验Ⅰ组猪饲喂110 mg/kg硫酸亚铁+55 mg/kg硫酸锌+55 mg/kg甘氨酸锌的基础日粮,试验Ⅱ组白猪饲喂55 mg/kg硫酸亚铁+55 mg/kg甘氨酸铁+110 mg/kg硫酸锌的基础日粮,试验Ⅲ组白猪饲喂55 mg/kg硫酸亚铁+55 mg/kg甘氨酸铁+55 mg/kg硫酸锌+55 mg/kg甘氨酸锌的基础日粮。结果表明:试验Ⅰ组和试验Ⅱ组白猪只的日采食量和末期体质量均显著高于对照组(P<0.05),试验Ⅰ组、试验Ⅱ组和试验Ⅲ组料重比较对照组分别降低2.34%、2.34%和5.85%(P>0.05);试验组粗蛋白(CP)的消化率显著高于对照组(P<0.05),试验Ⅲ组磷(P)的消化率显著高于对照组(P<0.05),试验Ⅰ组、试验Ⅱ组和试验Ⅲ组钙(Ca)的消化率显著高于对照组(P<0.05)。
The aim of the experiment was to investigate the effects of iron and zinc glycinate chelates on the growth performance and the apparent digestibility of dietary nutrients in piglets in replacement of inorganic iron and zinc. A healthy ternary (Duroc × Land × Large) crossbred white pig with 204 (25 ± 2) days of age and similar body weight (7.55 ± 0.31) kg was selected and randomly divided into control group and test group Ⅰ, test group Ⅱ and test Group Ⅲ, each with 3 replicates and 17 replicates, showed no significant differences among the groups (P> 0.05). The control group was fed the basal diet with 110 mg / kg ferrous sulfate and 110 mg / kg zinc sulfate. Group I pigs were fed 110 mg / kg ferrous sulfate + 55 mg / kg zinc sulfate + 55 mg / kg glycine The basal diet of zinc was fed to experiment group II, the basal diet of 55 mg / kg of ferrous sulfate + 55 mg / kg of iron glycine + 110 mg / kg of zinc sulfate was fed on the white pig in experiment group Ⅲ, 55 mg / kg of sulfated sulfate Iron + 55 mg / kg Iron glycinate + 55 mg / kg Zinc sulfate + 55 mg / kg Zinc glycinate basal diet. The results showed that the daily feed intake and end body weight of white pigs in experimental group I and II were significantly higher than that of the control group (P <0.05). The experimental group I, II group and III group (P> 0.05). The digestibility of crude protein (CP) in the experimental group was significantly higher than that in the control group (P <0.05). The digestibility of phosphorus (P) in the experimental group Ⅲ was significantly higher than that of the control (P <0.05). The digestibility of calcium in experimental group I, II and III was significantly higher than that in control group (P <0.05).