摘要
Two experiments were conducted to investigate the feeding value of wood vinegar in weanling pigs. In Experiment 1, weanling pigs (n = 224; Landrace Yorkshire Duroc, 213 d-old, initial BW 6.120.10 kg) were assigned to four dietary treatments. Different levels of wood vinegar were added to the diets as dietary treatments (0, 0.1, 0.2 and 0.3%). Each treatment comprised 4 replicates with 14 piglets in each. Experimental feeding was conducted for 28 d in two phases (phase I, d 0 to 14 and phase II, d 15 to 28). Feeding of wood vinegar linearly (p<0.05) improved the phase I, phase II and overall ADG and increased (linear, p<0.05) the overall and phase II ADFI. Linear improvements in the apparent fecal digestibility of dry matter (p = 0.013), gross energy (p = 0.019) and crude protein (p = 0.033) were observed as the level of wood vinegar was increased in the diet of pigs. Experiment 2 was conducted to compare dietary wood vinegar with commonly used growth promoters, organic acid (mixture of 21% phosphoric acid, 3.25% propionic acid, 2.8% formic acid, 10% calcium formate and 5% calcium propionate) and antibiotic (aparamycin). A total of 288 weanling piglets (Landrace Yorkshire Duroc, 222 d-old, initial BW 6.620.31 kg) were assigned to four treatments with four replicates (18 piglets/pen) for 28 days and fed in 2 phases: phase I, d 0 to 14 and phase II, d 15 to 28. The dietary treatments were control (corn-soybean meal basal diet without antibiotics) and diets containing 0.2% antibiotic, 0.2% organic acid and 0.2% wood vinegar. Pigs fed antibiotic showed higher (p<0.001) ADG and better feed efficiency followed by pigs fed wood vinegar and organic acid diets while those fed the control diet had lowest ADG and poorest feed efficiency. The overall and phase I ADFI was highest (p<0.001) in pigs fed wood vinegar and lowest in pigs fed the control diet. Apparent fecal digestibility of dry matter, gross energy and crude protein was significantly higher (p<0.05) in pigs fed the antibiotic diet when compared with pigs fed the control but comparable among pigs fed antibiotic, organic acid and wood vinegar diets. Higher populations of Lactobacillus (p = 0.004) were noted in the ileum of pigs fed the wood vinegar diet, while the population of coliforms in the ileum and cecum was higher (p<0.001) in pigs fed the control diet when compared with pigs fed antibiotic, organic acid or wood vinegar diets. These results indicated that wood vinegar could improve the performance of weanling pigs by improving the nutrient digestibility and reducing harmful intestinal coliforms; moreover performance of pigs fed wood vinegar was superior to those fed organic acid.
摘要译文
通过两项实验研究了断奶仔猪木醋的饲用价值。在实验1中，断奶仔猪（n \x3d 224; Landrace Yorkshire Duroc，213 d-old，初始BW 6.120。将10kg）分配给四种饮食治疗。饮食中添加不同水平的木醋作为日粮处理（0,0.1,0.2和0.3％）。每次处理包括4次重复，每次重复14只仔猪。实验进料分两个阶段进行28天（阶段I，d 0至14和阶段II，d 15至28）。线性喂养木醋液（p 0.05）改善了I期，II期和整体ADG，并增加了整体和II期ADFI（线性，p 0.05）。观察到033）在猪的饮食中木醋液的水平增加。进行实验2以比较膳食木醋与常用的生长促进剂，有机酸（21％磷酸，3.25％丙酸，2.8％甲酸，10％甲酸钙和5％丙酸钙的混合物）和抗生素（阿帕霉素）。共有288只断奶仔猪（Landrace Yorkshire Duroc，222 d-old，初始BW 6.620。将31kg）分成4次处理，每次重复4次（18只仔猪/只），持续28天，分2阶段喂食：I期，d 0-14天和II期，d 15-28天。膳食处理是对照（不含抗生素的玉米 - 豆粕基础日粮）和含有0.2％抗生素，0.2％有机酸和0.2％木醋的饮食。饲喂抗生素的猪显示较高（p 0。001）ADG和更好的饲料效率，然后喂养木醋和有机酸饮食的猪，而喂食对照饮食的猪具有最低的ADG和最差的饲料效率。饲喂木醋的猪的总体和I期ADFI最高（p 0.001），对照饲料喂养的猪最低。干物质的表观粪便消化率，与饲喂对照的猪相比，饲喂抗生素饲料的猪的总能量和粗蛋白显着更高（p 0.05），但与喂食抗生素的猪相比，有机酸和木醋饮食。在喂食木醋饮食的猪的回肠中注意到更高的乳杆菌种群（p \x3d 0.004），与饲喂抗生素，有机酸或木醋饮食的猪相比，饲喂对照饮食的猪的回肠和盲肠大肠菌群数量更高（p 0.001）。结果表明，木醋液可以通过提高营养物质的消化率，减少有害的肠道大肠菌群，提高断奶仔猪的生产性能;此外，饲喂木醋的猪的性能优于饲喂有机酸的猪。
Choi, J.Y.; Shinde, P.L.; Kwon, I.K.; Song, Y.H.; Chae, Byung-Jo;. Effect of Wood Vinegar on the Performance, Nutrient Digestibility and Intestinal Microflora in Weanling Pigs[J]. Asian-Australasian Journal of Animal Sciences, 2009,22(2): 267-274