谷氨酰胺对断奶仔猪生长性能、血液生化指标及血浆氨基酸的影响

发布时间：2018-09-17 18:42

【摘要】：为了研究谷氨酰胺对断奶仔猪生长性能、血液生化指标及血浆游离氨基酸含量的影响,试验将16头体重相近的21日龄健康断奶仔猪随机分为2组(对照组和谷氨酰胺组),试验期为21 d,研究在日粮中添加1%谷氨酰胺对仔猪生长性能、血液生化指标及血浆游离氨基酸含量的影响。结果表明:1日粮中添加谷氨酰胺有降低仔猪0~14 d和0~21 d腹泻率的趋势,显著降低了15~21 d仔猪料重比(P0.05)。2日粮中添加谷氨酰胺降低了仔猪血液中白细胞数、淋巴细胞绝对值、单核细胞绝对值(P0.05)。3添加谷氨酰胺可提高血浆尿素、丝氨酸、半胱氨酸、瓜氨酸、蛋氨酸、酪氨酸、β-丙氨酸、γ-氨基丁酸和色氨酸含量(P0.05),降低α-氨基丁酸、组氨酸和脯氨酸含量(P0.05)。说明日粮中添加1%谷氨酰胺可提高仔猪饲料利用率并降低腹泻率,并可改变仔猪血液氨基酸组成,提示谷氨酰胺具有影响部分氨基酸的吸收与转运和改善肠道完整性的作用。
[Abstract]:In order to study the effect of glutamine on growth performance, blood biochemical index and plasma free amino acid content in weaned piglets, Sixteen 21-day-old healthy weaned piglets with similar body weight were randomly divided into two groups (control group and glutamine group) for 21 days. The growth performance of piglets fed with 1% glutamine was studied. The effect of blood biochemical index and plasma free amino acid content. The results showed that the supplementation of glutamine in 1 diet had a tendency to decrease the diarrhea rate of piglets for 14 days and 21 days, and significantly decreased the feed weight ratio of 15 to 21 days (P0.05). 2 supplementation of glutamine in diet decreased the number of white blood cells and the absolute value of lymphocytes in piglets. The content of urea, serine, cysteine, citrulline, methionine, tyrosine, 尾 -alanine, 纬 -aminobutyric acid and tryptophan were increased by adding glutamine to monocyte absolute value (P0.05), and the contents of 伪 -aminobutyric acid, histidine and proline were decreased (P0.05). The results showed that 1% glutamine in diet could increase feed utilization rate and reduce diarrhea rate of piglets and change the composition of amino acids in blood of piglets, suggesting that glutamine could affect the absorption and transport of some amino acids and improve the intestinal integrity of piglets.
【作者单位】：武汉轻工大学动物营养与饲料科学湖北省重点实验室;武汉轻工大学动物营养与饲料安全湖北省协同创新中心;浙江国茂饲料有限公司;
【基金】：湖北省重大科技创新计划项目(2014ABA022) 杭州市钱江特聘专家项目
【分类号】：S828.5

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