益生性活性卵白制剂对早期断奶仔猪生产性能和肠道pH的影响

Effects of Active Ovalbumin on Growth Performance and pH Value of Intestinal Tract for Early Weaned Piglets

试验选取28日龄断奶的三元[杜×(大×长)]杂交仔猪36头,平均初始体重为5.22±0.89 kg,随机分为活性卵白试验组和对照组,每个处理组3个重复,每个重复6头。对照组饲喂基础日粮,活性卵白试验组在相同的基础日粮基础上口服饲喂活性卵白制剂,剂量为10 ml/d.只,连续服用10 d(断奶前5 d至断奶后5 d),研究添加服用益生性活性卵白制剂对断奶仔猪生产性能、腹泻率和肠道各段pH的影响。结果表明,活性卵白物质可显著提高断奶仔猪的日增重、日采食量,显著改善仔猪生长性能,具有更好的提高断奶仔猪生长速率的趋势及较好的阶段增重优势。在预防仔猪消化道疾病方面活性卵白制剂具有良好效果,可提高断奶仔猪的存活率,腹泻率下降幅度较大,对缓解腹泻的作用明显优于对照组。因此,早期断奶仔猪口服活性卵白制剂有助于提高其生产性能,降低腹泻率,具有降低仔猪肠道内容物pH的趋势。

In the experiments 36 three-way crossbred [ Duroc×（Landrace×Yorkshire） ] piglets weaned at 28 days,average initial weight 5.22±0.89 kg,randomly divided into 2 groups,namely active ovalbumin group（AEWP group） and control group,each group had 3 replicates and with 6 piglets in it.Control group feeding basal diets,the AEWP group treated with active ovalbumin at 10 ml level to each piglet for 10 days（from 5 days before weaning to 5 days after weaning）.The experiments was designed to study the effects of active active ovalbumin could increased average daily gain （ ADG ）, feed intake and growth for piglets, growth performance had improved significantly. Secondly the active ovalbumin had better advantage on phase increase weight and trend on heighten growth rate, had preferable effect for the alimentary tract diseases of piglets, could heighten livability for weaned piglets, vast scale decline in diarrhea rate and delay diarrhea relative to control group. So it was concluded the active ovalbumin could help to improve performance and reduce diarrhae rate for early weaned piglets,had effect to fall the pH value of intestinal tract.