摘要
【目的】研究银杏叶提取物(EGB)对断奶仔猪生长性能、血清生化指标和激素水平的影响,为银杏叶的开发应用提供依据。【方法】将160头25日龄的"杜×长×大"三元杂交断奶仔猪按公母各半、体质量接近的原则,随机分为4组,每组4个重复,每个重复10头,分别饲喂添加质量分数0%,0.1%,0.2%和0.3%EGB的基础日粮,试验期为28 d,测定断奶仔猪生长性能、血清生化指标和激素水平。【结果】日粮中添加质量分数0.2%和0.3%EGB可显著提高断奶仔猪平均日增质量(P<0.05),降低料质量比(P<0.05);显著降低断奶仔猪血清尿素氮和血糖浓度(P<0.05),提高血清碱性磷酸酶活性和血清生长激素、三碘甲腺原氨酸水平(P<0.05)。【结论】日粮中添加质量分数0.2%和0.3%EGB,可改善断奶仔猪血清生化指标,提高生长相关激素水平,促进仔猪生长。
【Objective】 This experiment was conducted to investigate the effect of Ginkgo biloba extract（EGB） on growth performance,serum biochemical parameters and hormones level in weaned piglets.【Method】 160 crossbred piglets（Duroc×Landrace×Large Yorkshire） weaned at aged of 25 days were randomly divided into 4 groups,each with 4 replicates of 10 piglets per replicate,and fed basal diet supplemented with 0%,0.1%,0.2% and 0.3% EGB for 28 days.Growth performance,serum biochemical parameters and hormones level were determined.【Result】 Adding 0.2% or 0.3% EGB to diets of weaned piglets significantly increased average daily gain（P〈0.05） and decreased feed to gain ratio（P〈0.05）.In weaned piglets fed diets supplemented with 0.2% or 0.3% EGB,serum urea nitrogen and glucose level were reduced（P〈0.05）,whereas serum alkaline phosphatase activity,the level of growth hormone and triiodothyronine were elevated（P〈0.05）.【Conclusion】 Adding 0.2% or 0.3% EGB to diets of weaned piglets could improve serum biochemical parameters and growth-related hormone level,and therefore could improve growth performance.
出处
《西北农林科技大学学报（自然科学版）》
CSCD
北大核心
2011年第8期51-55,共5页
Journal of Northwest A&F University(Natural Science Edition)
基金
福建省科技计划重点项目(2010N0024)
福建省高校服务海西建设重点项目(闽教高[2009]8号)
关键词
银杏叶提取物
断奶仔猪
生长性能
血清生化指标
激素水平
Ginkgo biloba extract
weaned piglets
growth performance
serum biochemical parameters
hormone level
