芦笋秸秆提取物对蛋鸡生产性能及生化指标的调控作用.pdfVIP

摘要 摘 要 选择产蛋率和体重相近的26周龄余干乌鸡120只，随机分成6个处理，每个处理设 5个重复，每个重复4只鸡。预试期1周，正试期3周。对照组仅饲喂基础日粮，试验组 分别在基础日粮中添加0.1%、0.2%、0.3%、0.4%、0.5%的芦笋秸秆提取物，研究芦笋 秸秆提取物对产蛋余干乌鸡产蛋性能、免疫性能及血清生化指标的影响。结果表明： 添加0.1%～0.5%的芦笋秸秆提取物与对照组相比产蛋率显著提高 (P0.05)。添加 0.1%～0.4%的芦笋秸秆提取物与对照组相比可以显著提高血清中的超氧化物歧化酶 （SOD）和IgG水平(P0.05)，在添加0.5%时两者水平皆极显著提高(P0.01)。与对照 组相比添加0.1%～0.5%时，血清中低密度脂蛋白胆固醇（LDL-C）和谷丙转氨酶（ALT） 水平极显著降低(P0.01)；在添加0.1%～0.3%时血清中的IgM水平显著提高(P0.05)， 在添加0.4%～0.5%时其水平极显著提高(P0.01)。结果说明,日粮中添加0.1%至0.5% 芦笋秸秆提取物有利于提高产蛋期余干乌鸡产蛋率和免疫功能，并具有降低LDL-C和 护肝功效。 关键词：芦笋秸秆；提取物；鸡；产蛋；免疫 III 英文摘要 Abstract 120 Yugan silky fowls with close egg laying rate and body weight at 26 weeks old were selected and randomly divided into 6 treatments with 20 chickens per treatment. The period of trial was 3 weeks with 1 week of pretrial. To investigate the effect of the extract of asparagus straw on egg laying performance, immune function and serum biochemical index in Yugan silky fowls, the control group was fed with the basal diet and the treatment groups were fed with the basal diet supplemented with 0.1% 0.2% 0.3% 0.4% 0.5% of the extract of asparagus straw, respectively. The results showed that: compared with the control group, supplementing with extract of asparagus straw (0.1% to 0.5%) significantly increased egg laying rate (P0.05) and significantly decreased serum low-density lipoprotein cholesterol (LDL-C) and alanine aminotransferase (ALT) (P0.05). The levels of serum superoxide dismutase (SOD) and IgG was significantly increased in groups adding 0.1% to 0.4% (P0.05) and 0.5% (P0.01) of the extract of asparagus straw. The level of IgM in serum was significantly increased in groups adding 0.1% to 0.3% (P0.05), adding 0.4% to 0.5% (P0.0 1) of