中药渣剩余成分分析及利用途径研究

ttttt目的ttttt研究日粮添加通脉颗粒药渣(Tongmai granule residues, TGR)对羊屠宰性能、器官指数、复胃发育及瘤胃发酵参数的影响。ttttttttttttt方法ttttt选取1岁左右、平均体重为(29.64±1.80) kg的健康杜寒杂交母羊15只，随机分为3组，每组5个重复，分别为对照组(不含TGR)、10% TGR组和15% TGR组。参照NY/T 816—2004配制基础日粮，精粗质量比均为6∶4，饲养至第76天屠宰。ttttttttttttt结果ttttt(1)日粮添加15% TGR眼肌面积显著降低(P<0.05)，但对宰前活重、胴体重、屠宰率均无显著影响(P>0.05)。(2)日粮添加15% TGR肾脏指数显著高于对照组(P<0.05)，但其他器官指数差异均不显著(P>0.05)。(3)各组瘤胃、网胃、瓣胃、皱胃的绝对重量及其与宰前活重的相对重量差异不显著(P>0.05)，15% TGR组瘤胃重与复胃重之比显著升高 (P<0.05)，皱胃重与复胃重比例显著下降(P<0.05)。(4)日粮添加15% TGR瘤胃pH和氨态氮质量浓度较对照组和10% TGR组显著升高 (P<0.05)，乙酸、丙酸、丁酸和TVFA浓度较对照组和10% TGR组显著降低(P<0.05)。tttttttttttttttttt结论ttttt在本试验条件下，杜寒杂交母羊日粮中TGR添加水平为10%时，饲喂效果较好。tttt

Preparation and antioxidant activity of Radix Astragali residues extracts rich in calycosin and formononetin

tttttPurposetttttTo investigate the effects of the Tongmai granule residues (TGR) on slaughter performance, organ indexes, development of complex stomachs and rumen fermentation parameters in sheep.tttttttttttttMethodtttttFifteen healthy Doper × Short-tail Han ewes with an average body weight of (29.64 ± 1.80) kg were randomly divided into 3 groups with 5 ewes in each group. They were control group (without TGR), 10% TGR group and 15% TGR group. The basic diet was prepared according to NY/T 816—2004. The ratio of concentrate to roughage was 6∶4, and it was slaughtered until the 76^th day.ttttttttttttttttttResultttttt(1) The eye muscle area decreased significantly with dietary supplementation of 15% TGR (P<0.05), but there was no significant difference in pre-slaughter live weight, carcass weight and slaughter rate (P>0.05). (2) The kidney index in the 15% TGR group was significantly higher than those in the control group (P<0.05), but there was no significant difference in other organ indexes between the groups (P>0.05). (3) There was no significant difference in the absolute weight of rumen, reticulum, omasum, abomasum, and their relative weights to pre-slaughter live weight in all groups (P>0.05). The ratio of rumen weight to compound stomach was significantly increased (P<0.05), and the ratio of abomasum weight to compound stomach was significantly decreased with dietary supplementation of 15% TGR (P<0.05). (4) The pH value and NH₃-N concentration in rumen of the 15% TGR group were significantly higher than those in the control group and 10% TGR group (P<0.05). But the concentrations of acetic acid, propionic acid, butyric acid and total volatile fatty acid in the rumen of the 15% TGR group were significantly lower than those in control group and 10% TGR group (P<0.05).ttttttttttttttttttConclusiontttttIt is concluded that 10% TGR in the diet is the appropriate level of supplementation for Doper × Short-tail Han ewes.tttt