摘要
This study was conducted to investigate the effect of feeding of garlic stalk silage on performance and carcass characteristics of Hanwoo steers. Feeding trial was conducted with 27 heads of Hanwoo steers and these animals were divided into two groups of control(rice straw) and garlic stalk silage. Animals consuming rice straw were fed concentrates and rice straw for 22 months from the 5 months of age and animals consuming garlic stalk silage were fed concentrates, rice straw and garlic stalk silage for 22 months from the 5 months of age. Animals fed rice straw and garlic stalk silage were fed 1.34 and 1.47, 1.69 and 1.74, 1.65 and 1.66% concentrates to body weight for the growing period, fattening period and finishing period, respectively. Animals fed rice straw and garlic stalk silage as roughage sources were fed 1.37 and 1.38, 0.65 and 0.63, 0.43 and 0.43% roughages to body weight for the growing period, fattening period and finishing period, respectively. Also, animals fed garlic stalk silage were offered 0.22 and 0.33% garlic stalk silage to body weight for the fattening and finishing period, respectively. Animals fed rice straw and garlic stalk silage as a roughage sources did not differ in average daily gain during the whole feeding periods. Animals of control group consumed less concentrates and roughage than those fed garlic stalk silage during the whole feeding periods. However, feed efficiency was not significantly different between both treatments. Beef yield including backfat thickness, eye muscle area and carcass weight was slightly lower in the animals fed garlic stalk silage than in the animals fed rice straw even though there were no differences between both treatments. However, beef quality including beef color, fat color, texture, maturity and marbling score was slightly higher in the garlic stalk silage-fed animals than in the animals fed rice straw although there were not statistically different between both treatments. Animals consuming garlic stalk silage was significantly(p<0.05) lower in shear value than those fed rice straw. Amino acid composition including essential amino acid and non-essential amino acid was not different between animals fed rice straw and garlic stalk silage. Eye muscle area of animals fed garlic stalk silage contained slightly higher oleic acid, less linoleic acid and arachidonic acid and more linolenic acid than that of animals fed rice straw only as a roughage sources. So eye muscle area of animals fed garlic stalk silage contained more mono-unsaturated fatty acid than that of animals fed rice straw and 6/3 ratio was narrower in the animals fed garlic stalk silage than in the animals fed rice straw. Economic income was higher by 20% in the animals fed garlic stalk silage than in the animals fed rice straw. Therefore, It may be concluded that feeding of garlic stalk silage as a roughage sources to steers during the fattening period seems to improve meat quality, fatty acid composition and economic income.
摘要译文
本研究旨在探讨大蒜秸秆青贮饲料喂养对Hanwoo阉牛的性能和胴体特性的影响。用27头Hanwoo阉牛进行饲喂试验，将这些动物分成两组对照（稻草）和大蒜秸秆青贮饲料。从5月龄开始，食用稻草的动物饲喂浓缩物和稻草22个月，并且从5个月大的时候给食用大蒜秸秆青贮饲料的动物喂食浓缩物，稻草和大蒜秸秆青贮饲料22个月。饲喂稻草和大蒜秸秆青贮饲料的动物分别饲喂1.34和1.47,1.69和1.74,1.65和1.66％的浓缩物，分别为生长期，育肥期和育肥期。饲喂稻草和大蒜秸秆青贮饲料作为粗饲料来源的动物分别饲喂1.37和1.38,0.65和0.63,0.43和0.43％的粗饲料，分别为生长期，育肥期和育肥期。此外，饲喂大蒜秸秆青贮饲料的动物分别为育肥和育肥期提供0.22和0.33％的大蒜秸秆青贮饲料。饲喂稻草和大蒜秸秆青贮饲料作为粗饲料来源的动物在整个喂养期间的平均日增重没有差异。在整个喂养期间，对照组的动物比喂食大蒜茎青贮饲料的动物消耗更少的浓缩物和粗饲料。然而，两种处理之间的饲料效率没有显着差异。饲喂大蒜秸秆青贮饲料的动物的背部厚度，眼肌肉面积和胴体重量的牛肉产量略低于饲喂稻草的动物，即使两种处理之间没有差异。然而，在饲喂大米秸秆青贮饲料的动物中，牛肉的质量，包括牛肉颜色，脂肪颜色，质地，成熟度和大理石花纹评分略高于饲喂稻草的动物，尽管两种处理之间没有统计学差异。食用大蒜秸秆青贮饲料的动物的剪切值显着（p <0.05）低于饲喂稻草的动物。饲喂稻草和大蒜秸秆青贮饲料的动物的氨基酸组成包括必需氨基酸和非必需氨基酸没有差异。饲喂大蒜秸秆青贮饲料的动物的眼肌肉区域含有略高于油酸，亚油酸和花生四烯酸的亚麻酸和更多的亚麻酸，而饲喂稻草的动物只是粗饲料来源。因此，饲喂大蒜秸秆青贮饲料的动物的眼肌区域比饲喂稻草的动物含有更多的单不饱和脂肪酸，并且饲喂大蒜秸秆青贮饲料的动物的6/3比例比饲喂稻草的动物更窄。饲喂大蒜秸秆青贮饲料的动物的经济收入比饲喂稻草的动物高20％。因此，可以得出结论，在育肥期间饲喂作为粗饲料来源的大蒜秸秆青贮饲料似乎改善了肉质，脂肪酸组成和经济收入。
Chu, G.M.; Lee, H.J.; Park, J.S.; Cho, H.W.; Ahn, B.H.;. Effect of Garlic Stalk Silage on Performance and Carcass Characteristics of Hanwoo Steers[J]. Journal of Animal Science and Technology. (Text mainly in Korean; Summaries in English), 2003,45(6): 1007-1018