摘要
Two experiments were carried out in this study. Experiment 1 was conducted to examine the effects of several supplemental Chinese herbs on antioxidant function and slaughtered body weight in sheep. Results indicated that Fructus Ligustri Lucidi supplementation improved the blood antioxidant function [higher concentration of glutathione reductase (GR), superoxide dismutase and lower concentration of malondialdehyde] and slaughtered body weight in sheep (p < 0.05). Experiment 2 was conducted to investigate the effect of Fructus Ligustri Lucidi extract (FLLE) on rumen fermentation and nutrient digestibility in sheep. Four levels of FLLE treatments, i.e. 0, 100, 300 and 500 mg/kg dry matter (DM), were used in this part. Addition of FLLE at 300 or 500 mg/kg DM increased total volatile fatty acid (VFA) concentration and propionate proportion, decreased ammonia-N concentration in the ruminal fluid, reduced blood urea nitrogen concentration at 2, 4, 6 and 8 h after morning feeding (p < 0.05). Addition of FLLE at all dosages had no effect on ruminal pH value and acetate concentration at all sampling time points in sheep (p > 0.05). Dynamic degradation coefficient c of maize DM was significantly increased by supplementing FLLE at 300 or 500 mg/kg DM (p < 0.05). Fructus Ligustri Lucidi extract addition had no effect on degradation coefficients a, b, c of DM and nitrogen of soybean meal; a, b of maize DM; a, b, c of maize nitrogen; and a, b, c of neutral detergent fibre (NDF) and acid detergent fibre (ADF) of Chinese wildrye (p > 0.05). Addition of FLLE at 300 or 500 mg/kg DM increased DM and organic matter digestibility of diet (p < 0.05). Fructus Ligustri Lucidi extract addition had no effect on digestibility of diet’s NDF, ADF and crude protein (p > 0.05). From the aforementioned results, it is indicated that FLLE improved antioxidant status and slaughtered body weight. Fructus Ligustri Lucidi extract addition has capability to modulate rumen fermentation, increase the maize degradation rate, total volatile fatty acid concentration and propionate proportion in sheep.
摘要译文
两个实验进行了本研究。实验1进行检查补充一些中国中药抗氧化功能及屠宰体重的羊的效果。结果表明，女贞子补充完善了血液抗氧化功能[谷胱甘肽还原酶（GR）的浓度较高，超氧化物歧化酶和丙二醛的浓度较低]和屠宰体重的羊（P 0.05）。实验2进行调查的女贞子提取物（FLLE）对瘤胃发酵和绵羊营养物质消化率的影响。四级FLLE治疗，即0，100，300和500mg / kg干物质（DM），在该部分中使用。此外FLLE在300或500毫克/公斤的DM增加总挥发性脂肪酸（VFA）的浓度和丙酸比例在胃液降低氨氮浓度，降低血中尿素氮浓度在2,4，6和8小时上午喂食（P 0.05）之后。此外FLLE在所有剂量已经在所有取样时间点中的羊对瘤胃pH值和乙酸浓度没有影响（P 0.05）。动态降解系数C玉米DM被显著增加补充FLLE在300或500毫克/千克DM（P 0.05）。女贞子提取物除了没有对降解系数a，b，C DM和豆粕的氮; A，B玉米DM的; A，B，C玉米氮;与A，B，3C中国羊草（P 0.05）的中性洗涤纤维（NDF）和酸性洗涤纤维（ADF）的。此外FLLE在300或500毫克/千克DM DM提高和饮食习惯的有机物质消化率（P 0。05）。女贞子提取物除了对饮食的NDF，ADF和粗蛋白（P 0.05）的消化率没有影响。从上述的结果，它表示，FLLE提高抗氧化状态和屠宰体重。女贞子提取物除了有能力调节瘤胃发酵，提高玉米降解率，总挥发性脂肪酸浓度和丙酸在羊的比例。
G. H. Qiao[1]; X. H. Zhou[1]; Y. Li[2]; H. S. Zhang[2]; J. H. Li[2]; C. M. Wang[2]; Y. Lu[2];. Effect of several supplemental Chinese herbs additives on rumen fermentation, antioxidant function and nutrient digestibility in sheep[J]. Journal of Animal Physiology and Animal Nutrition, 2012,96(5): 930-938