中草药添加剂对生长肥育猪饲料养分消化率的影响研究

 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,Ca^２＋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。

Effect of Chinese Herb Feed Additives on the Feed Nutrient Digestibility in Growing and Finishing Pigs

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 Ca²⁺ 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.