국산 대맥이 비육돈의 육질에 미치는 영향 = Effect of Domestic Barley on Carcass Characteristics of Finishing Pigs

다국어 초록 (Multilingual Abstract)

In order to investigate an effect of domestic barley on the carcass characteristics of pigs, three way cross bred (Landrace × Large white × Hampshire) pigs fed on a commercial diet until about 76㎏ were allotted to 20 pigs per pen and three pens per diet. And then they fed on basal diet and diets in which 10%(l0% barley diet) or 20%(20% barley diet) of the domestic barley substituted for yellow corn and soy bean meal of the basal diet during 38 days of experimental feeding for finishing period. Digestibility of nutrients and energy of diets were measured. And dressing percentage, loin eve area, backfat thickness at site of 7th, 10th and last ribs and amount of lean meat of carcass were measured on 45 pigs chosen randomly by 5 pigs per pen after experimental feeding. During experimental feeding period body weight gain and feed conversion did not show significant differences among pigs fed diets of basal and 10% barley, while pigs fed 20% barley diet tended to decrease body weight gain and worsened feed conversion. Pigs fed diets containing 10% or 20% barley showed the increased digestibilites of crude protein and nitrogen-free extracts. But digestibility of crude fiber in pigs fed 20% barley diet decreased. Basal diet contained 3.001 Meal DE per ㎏ dry matter, and 10% barley diet and 20% barley diet contained 3.252 and 3.240 Meal, respectively. Also digestibility of energy was heightened significantly(p$lt;0.05) in diets containing barley compared with that in basal diet. Dressing percentages, and lean meat percent tended to be high in pigs fed 20% barley diet compared with those of pigs fed basal and 10% barley diets. Average backfat thickness of pigs fed 20% barley diet was 2.59 ㎝ which was clearly thinner compared with 2.82 and 2.73 ㎝ of pigs fed basal and 10% barley diets, respectively. The results indicated that pigs fed diets containing 20% of the domestic barley increased dressing percent, loin eye area and lean meat percent, and decreased backfat thickness compared with those of pigs fed basal deit. It was suggested that the domestic barley will possibly improve the market carcass quality of pigs.