日粮纤维水平对断奶仔猪生长性能与肠道形态的影响

发布时间：2018-05-21 20:47

本文选题：断奶仔猪 + 日粮纤维　；参考：《黑龙江畜牧兽医》2016年23期

【摘要】：为了研究不同日粮纤维水平对断奶仔猪生长性能、腹泻程度和肠道形态的影响,试验将初始体重为(8.10±0.06)kg的96头断奶仔猪随机分为4组,分别饲喂中性洗涤纤维(NDF)水平为6.7%、7.7%、8.7%和9.7%的日粮,每组日粮除NDF水平外,其余营养水平相同,测定仔猪体重变化及十二指肠、空肠和回肠的绒毛高度、隐窝深度。结果表明:(1)与6.7%NDF组相比,7.7%NDF组、8.7%NDF组和9.7%NDF组仔猪平均日增重分别提高了1.78%(P0.05)、6.80%(P0.05)和8.28%(P0.05);9.7%NDF组平均日采食量较7.7%NDF组显著提高(P0.05);各组料重比无显著差异(P0.05)。(2)高水平NDF有降低仔猪腹泻频率的趋势(P0.05)。(3)与7.7%NDF组相比,8.7%NDF组和9.7%NDF组十二指肠隐窝深度分别增加了47.32%和45.80%(P0.05),绒毛高度和隐窝深度比值分别降低了42.95%和38.46%(P0.05);其余指标组间差异不显著(P0.05)。说明日粮中NDF水平为9.7%时提高仔猪生长性能、降低腹泻率的效果最好。
[Abstract]:In order to study the effects of different dietary fiber levels on growth performance, diarrhea degree and intestinal morphology of weaned piglets, 96 weaned piglets with an initial weight of 8.10 卤0.06)kg were randomly divided into 4 groups. The diets fed with 6. 7% and 9. 7% of neutral detergent fiber were fed with the same nutritional level except NDF level. The weight changes of piglets and the villi height and crypt depth of duodenum, jejunum and ileum were measured. The results showed that compared with 6.7%NDF group, the average daily gain of 9.7%NDF group and 9.7%NDF group increased by 1.78% and 8.28%, respectively, and the average daily feed intake of 7.7%NDF group was significantly higher than that of 7.7%NDF group (P 0.05, P 0.05, P 0.05, P 0.05, P 0.05, P 0.05, P 0.05, P 0.05, P 0.05, respectively.) the average daily feed intake of 7.7%NDF group was significantly higher than that of 7.7%NDF group, and the average daily feed intake of 7.7%NDF group was significantly higher than that of 7.7%NDF group. There was no significant difference in feed weight ratio among groups. Compared with 7.7%NDF group, the depth of duodenal recess increased by 47.32% and 45.80%, and the ratio of villi height and crypt depth decreased by 42.95% and 38.46%, respectively. The results showed that the best effect was to improve the growth performance and reduce the diarrhea rate of piglets when the NDF level was 9.7.
【作者单位】：四川省畜牧科学研究院;动物遗传育种四川省重点实验室;
【基金】：四川省畜牧科学研究院基本科研业务费专项(SASA2012A07)
【分类号】：S828.5

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