CAJ | 학술논문

本研究选择24只辽宁绒山羊羔羊，年龄90±3.5日龄，体重15±0.62 kg，公母各半。试验动物分成3组，1组为高能低蛋白组，饲喂1号日粮；2组为高能高蛋白组，饲喂2号日粮；3组为对照组，饲喂3号日粮。连续试验5个月，每月测量体重1次、屠宰1次，研究体增重、屠宰性能和肉品质指标。结果表明，试验1组和2组日增重均高于对照组，其最高峰分别在第4月龄和第5月龄出现，而对照组则在第3月龄出现。各组育肥后羊绒细度均无显著变化。试验1、2组屠宰率、净肉率、眼肌面积均高于对照组，其中2组与对照组差异显著（P＜0.05）。试验1组和2组肾周脂肪重均高于对照组，其肾周脂肪占胴体重比例高于对照组。试验1、2组GR值高于对照组，差异不显著（P＞0.05）。试验1、2组的嫩度值高于对照组；各组的肉色、失水率和熟肉率均差异不显著（P＞0.05）；对照组失水率低于试验1、2组；对照组熟肉率低于试验1、2组，但差异不显著（P＞0.05）。
본연구선택24지료녕융산양고양，년령90±3.5일령，체중15±0.62 kg，공모각반。시험동물분성3조，1조위고능저단백조，사위1호일량；2조위고능고단백조，사위2호일량；3조위대조조，사위3호일량。련속시험5개월，매월측량체중1차、도재1차，연구체증중、도재성능화육품질지표。결과표명，시험1조화2조일증중균고우대조조，기최고봉분별재제4월령화제5월령출현，이대조조칙재제3월령출현。각조육비후양융세도균무현저변화。시험1、2조도재솔、정육솔、안기면적균고우대조조，기중2조여대조조차이현저（P＜0.05）。시험1조화2조신주지방중균고우대조조，기신주지방점동체중비례고우대조조。시험1、2조GR치고우대조조，차이불현저（P＞0.05）。시험1、2조적눈도치고우대조조；각조적육색、실수솔화숙육솔균차이불현저（P＞0.05）；대조조실수솔저우시험1、2조；대조조숙육솔저우시험1、2조，단차이불현저（P＞0.05）。
Twenty-four Liaoning Cashmere lambs were randomly divided into three groups,feeding with number 1 to 3 ration. All the Lambs were investigated fattening performance, carcass traits, and meat quality. The results showed average daily gain(ADG) in test 1and test 2 were all higher than the control, and age of the highest ADG in test 1 and test 2 was respectively 4th moth and 5th moth, while that in control was 3th moth. And the Cashmere fine were not significant(P>0.05) dif-ferences after fattening. The dressing percentage, meat percentage, and loin eye area in test 1and test 2 were all significantly(P<0.05) higher than the control. Perirenal adipose, rate of perire-nal adipose to carcass, and GR Value in test 1and test 2 were all higher than the control. Shear force, meat color, water loss, and cooked meat percentage in test 1and test 2 were all higher than the control, but no significant(P>0.05) differences between test groups and the control. Accord-ing to the results it could been summarized that fattening improved ADG feeding higher ME and crude protein than the Conventional feeding group in Liaoning Cashmere lambs, and slaughter perfor-mance and meat quality were increased.