用20 kg左右的"杜长大"三元杂交猪16头,分成对照组、中药组、中药+西药组、西药组4组,每组4个重复.分20～30 kg,30～70 kg,70～110 kg三个阶段进行消化试验,测定中草药添加剂对饲料养分消化率的影响.结果表明:与西药组和对照组相比,在20～30 kg,30～70 kg,70～110 kg阶段,中药组的CP的消化率均有所提高,其中30～70 kg阶段分别提高了3.33%(P＜0.05)和4.61%(P＜0.05);EE消化率,分别提高了4.17%(P＜0.05)和11.63%(P＜0.01),11.78%(P＜0.01)和16.06%(P＜0.01),4.45%(P＜0.05)和6.58%(P＜0.05); CF消化率,分别提高了3.99%(P＜0.05)和5.3%(P＜0.05),5.73%(P＜0.05)和15.30%(P＜0.01),8.76%(P＜0.05)和13.75%(P＜0.01);中药组ASH,Ca2+的消化率,在不同的生长阶段,都与西药组无显著差异,但都比对照组有显著、极显著的提高.P的消化率在前期和后期的变化与ASH,Ca2+的相似,但30～70 kg阶段4个组的差异不显著.结果还表明,就消化率而言,中草药添加剂与抗菌素和化学合成药物之间,不存在累加作用.
Experiment has been conducted to investigate the effect of feed additives of Chinese herb on the growing characteristics in piglets through feeding, set with three period of 20～30?kg, 30～70?kg, 70～110?kg. 16 growing and finishing pigs (Duroc×Landrace×Yorkshire,20?kg initially) were assigned into control and three treat group set with four replicate pens per treatments. treated group 1,treated group 2 and treated group 3 fed basic diet supplemented with Chinese herb feed additives, Chinese herb feed additives + antibiotic/chemical compound drug and antibiotic respectively. Comparing to antibiotic/chemical synthetic drug group and control group, Chinese herb feed additives increased the crude protein digestibility of treatment pigs during three growing period, but no significant difference; The digestibility of EE was increased by 4 17% ( P <0 05) and 11 63% ( P <0 01), 11 78% ( P <0 01) and 16 06% ( P <0 01), 4 45% ( P <0 05) and 6 58% ( P <0 05) respectively; the digestibility of CF was increased by 3 99% ( P <0 05) and 5 3%( P <0 05),5 73%( P <0 05) and 15 30% ( P <0 01),8 76% ( P <0 05) and 13 75% ( P <0 01) respectively. The digestibility of Ash and Ca 2+ had no significant difference between treated group 1 and group 2, but both are higher than the control group. The digestibility of P had the same change on the former and latter period , but no significant difference for four groups during 30～70kg. The results also shows there were no additive effect of digestibility between the Chinese herb feed additives and antibiotics/ chemical synthetic medicine.
Journal of Yunnan Agricultural University