天然植物提取物对生长猪的促生长作用及其内分泌机制的研究

Promoting Effect of Extract from natural Plants on Growing Performance and Endocrine Mechanism of Growing Pigs

以杜长大三元杂交生长猪为试验对象,研究了在饲粮中添加0.3%天然植物提取物对其的促生长作用及内分泌机制的影响。结果表明:(1)生长猪日增重提高6.90%(P<0.05),饲料转化率提高6.73%(P<0.05);(2)血清中总蛋白、球蛋白、总胆固醇和甘油三酯含量,分别比对照组提高了11.13%(P<0.05)、19.88%(P<0.05)、12.39%(P<0.05)和21.43%(P<0.05)。谷丙转氨酶、谷草转氨酶和碱性磷酸酶活性,分别比对照组提高了13.39%(P<0.05)、14.16%(P<0.05)和12.14%(P<0.05);(3)血清中生长激素、类胰岛生长因子分别比对照组提高了21.09%(P<0.05)和17.20%(P<0.05)。三碘甲腺原氨酸、甲状腺素和环腺苷酸含量,分别比对照组增加了16.01%(P<0.05)、17.06%(P<0.05)和19.88%(P<0.05)。

Growing pigs Duroc × Landrace × Yorkshire Were used to investigate the promoting effect of 0.3% extract from natural plants （ ENP ） added to feed on the growing performance and the endocrine mechanism of growing pigs. The results of feeding experiment showed ： （ 1 ） In comparison with the control group, the daily gain of the growing pigs was significantly increased by 6.90% （ P 〈 0.05 ） and the feed conversion was increased 6.73% （ P 〈 0.05 ）. （2） The concentration of TP, GLO, CHO and TG3 in serums were increased by 11.13% （ P 〈0.05 ） , 19.88% （ P 〈0.05 ） , 12.39% （ P 〈0.05 ） and 21.43% （ P 〈0.05 } respectively. The activities of glutamic propylic transaminase （ GPT）, glutamic oxaolacetic transaminase （GOT） and alkaline phosphatase （ALP） in serums were increased by 13.39% （P〈0.05）, 14.16% （P〈0.05） and 12.14% （P〈0.05） respectively. （3） The concentration of GH and the level of IGF - I were increased by 21.09% （ P 〈 0.05 ） and 17.20% （ P 〈 0.05 ） respectively. The contents of T3, T4 and cAMP in serums were increased by 16.01% （P〈0.05）, 17.06% （P〈0.05） and 19.88% （P〈0.05） respectively.