摘要
本试验旨在研究大豆酶解蛋白（ ESM）对仔猪生长性能、矿物质利用及消化道健康的影响。试验将120头“杜长大”（DLY）仔猪[（10.79±1.59） kg]随机分为6个组,每个组4个重复,每个重复5头猪。6个组分别饲喂19%粗蛋白质（ CP）饲粮、18%CP饲粮和在18%CP饲粮基础上分别用1.0%、1.5%、2.0%、2.5%ESM等量替换玉米的饲粮。试验期为36 d。结果表明：1）与18%CP组对比,18%CP＋1.0%和1.5%ESM组仔猪平均日采食量、平均日增重提高,但无显著差异（ P＞0.05）；18%CP＋1.5%ESM组饲粮有机物和CP、粗灰分、钙和磷表观消化率显著提高（ P＜0.05）；18%CP＋1.0%和2.0%ESM组骨骼钙、磷含量显著提高（ P＜0.05）；18%CP＋2.0%ESM组空肠、18%CP＋2.5%ESM组回肠绒毛高度显著提高（ P＜0.05）,18%CP＋2.0%ESM组十二指肠和空肠的绒毛高度/隐窝深度（V/C）显著增加（P＜0.05）；18%CP＋1.5%ESM组血清二胺氧化酶（DAO）活性极显著降低（P＜0.01）,回肠黏膜分泌型免疫球蛋白 A（sIgA）含量显著提高（P＜0.05）；盲肠、结肠乳酸杆菌数量和乳酸杆菌/大肠杆菌显著提高（ P＜0.05）。2）与19%CP组对比,18%CP＋1.5%ESM组平均日采食量、平均日增重和料重比无显著差异（ P＞0.05）；饲粮干物质、有机物、CP、粗灰分、磷表观消化率显著提高（ P＜0.05）；血清和骨骼中钙含量显著提高（ P＜0.05）；血清DAO活性显著降低（ P＜0.05）；盲肠和结肠中乳酸杆菌数量、乳酸杆菌/大肠杆菌极显著提高（P＜0.01）。综上,饲粮添加1.0%～1.5%ESM一方面可以促进肠道绒毛发育、维持肠道结构完整、优化肠道菌群,从而保证仔猪消化道健康；另一方面可以提高仔猪对钙、磷的吸收与沉积,从而促进骨骼生长发育。
This experiment was conducted to study the effects of enzymolytic soybean meal （ ESM） on growth performance, mineral availability and intestine health of piglets. A total of 120 crossed-bred （ Duroc × Landrace×Yorkshine） piglets with the initial body weight of （10.79±1.59） kg were randomly divided into six groups with 4 replicates per group and 5 piglets per replicate. Six group were fed diets with 19% crude protein （ CP） , 18% CP, and 18% CP diets adding with 1.0%, 1.5%, 2.0%, 2.5% ESM to replace the same amount of cron, respectively. The experiment lasted for 36 days. The results showed as follows：1） compared with the 18% CP group, average daily gain （ ADG） and average daily feed intake （ ADFI） of 18% CP＋1. 0% and 1.5% ESM groups were increased but with no significant differences （ P〉0.05） . Compared with the 18% CP group, apparent digestibility of organic matter, CP, ash, calcium and phosphorus of 18% CP＋1. 5% ESM group were significantly increased （P〈0.05）. Compared with the 18% CP group, the contents of calcium, phosphorus in serum and bone of 18% CP＋1. 0% and 2. 0% ESM groups were significantly increased （ P〈0.05） . Compared with the 18% CP group, villus height in jejunum of 18% CP＋2.0% ESM group and in ileum of 18% CP＋2.5% ESM group was significantly increased （ P〈0.05） , the ratio of villus height to crypt depth （V/C） in duodenum and ileum of 18% CP＋2.0% ESM group was significantly increased （P〈0.05）. Com-pared with the 18% CP group, the activity of diamine oxidase （ DAO） in serum was significantly decreased of 18% CP＋1.5% ESM group （ P〈0.01） , and secretary immunoglobulin A （ sIgA） content in ileum mucosa was significantly increased of 18% CP＋1.5% ESM group （ P〈0.05） . Compared with the 18% CP group, Lactoba-cillus count and the ratio of Lactobacillus to Escherichia coli of caecum and colon were significantly increased （ P〈0.05） . 2） Compared with 19% CP group, the ADG, ADFI and the ratio of feed
出处
《动物营养学报》
CAS
CSCD
北大核心
2015年第2期541-550,共10页
CHINESE JOURNAL OF ANIMAL NUTRITION
关键词
大豆酶解蛋白
仔猪
生长性能
矿物质利用
消化道健康
enzymolytic soybean meal （ESM）
piglet
growth performance
minerals availability
intestines health
