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《Chinese Journal of Animal Nutrition》 2010-04
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Effects of Reducing the Ratio of Dietary Lysine to Net Energy on Performance and Meat Quality in Finishing Pigs

CAI Chuanjiang1,2 WANG Lixian1 ZHAO Kebin1 CHE Xiangrong2 YAN Hua1 CHENG Duxue1 QIAO Lijuan1(1.Institute of Animal Sciences,Chinese Academy of Agricultural Sciences,Beijing 100193,China;2.College of Animal Science and Technology,Shanxi Agricultural University,Taigu 030801,China)  
This experiment was conducted to determine the effects of reducing the ratio of dietary lysine(Lys)to net energy(Lys/NE)on performance and meat quality in finishing pigs.One hundred and forty Yorkshire pigs with initial average body weight of(30.0±1.6)kg were randomly allotted to 5 treatments(4 replicates per treatment and 7 pigs per replicate)based on their body weight and sex.During the 30~61 kg phase,all pigs were fed the same diet.During the finishing phase,pigs in each treatment were randomly fed with one of five diets:control,low Lys-1,low Lys-2,low protein-1 and low protein-2(CP levels were 15.20%,15.02%,15.11%,12.73% and 10.10%,respectively;Lys/NE ratios were 0.72,0.58,0.46,0.58 and 0.46 g/MJ,respectively).The results showed that the low Lys-1 and low Lys-2 treatments had significantly increased average daily gain(ADG)and intramuscular fat(IMF)content of pork in finishing pigs(P0.05)compared with control,but simultaneous decrease of CP level had no significant difference on ADG and IMF of pork compared with control(P0.05).Different treatments had no significant effect on average daily feed intake,F/G,alive weight,dressing percentage,pH1 h,pH24 h,shear force and drip loss(P0.05).Low Lys-2 and low CP-2 treatments had lower meat color value than control diet(P0.05).No significant effects on plasma urea nitrogen(PUN)content were observed among other treatments(P0.05),except that plasma UN content in low protein-2 treatment was significantly lower than that in control(P0.05).Compared with control,pigs fed the low Lys-1 and low Lys-2 diets had lower plasma IGF-Ⅰ content(P0.05),while pigs fed low protein-1 and low protein-2 diets had higher plasma IGF-Ⅰ content(P0.05).The results indicated that Lys/NE in diet decrease from 0.72 to 0.46 g/MJ could improve IMF content of finishing pigs;Lys/NE in diet reaching 0.46 g/MJ with protein level being 10.1% could decrease feed conversion rate of finishing pigs.
【Fund】: 国家科技支撑计划项目“畜禽健康养殖与新型工业化生产模式研究与示范”(2006BAD14B05)
【CateGory Index】: S828.5
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【Citations】
Chinese Journal Full-text Database 1 Hits
1 TANG Yanjun~1 ZHANG Shirui~(1*) HE Xi~1 WANG Rongfa~1 YI Xuewu~2 YANG Qiang~2 QIAO Shiyan~2 (1.Institute of Animal Nutrition,College of Animal Sciences,Hunan Agricultural University,Changsha 410128,China; 2.National Key Laboratory of Animal Nutrition,China Agricultural University,Beijing 100193,China);Effects of Net Energy Level and Lysine to Net Energy Ratio on Growth Performance and Carcass Characteristics of Finishing Swines Fed Low Protein Diet[J];Chinese Journal of Animal Nutrition;2009-06
【Co-citations】
Chinese Journal Full-text Database 7 Hits
1 TANG Yanjun~1 ZHANG Shirui~(1*) HE Xi~1 WANG Rongfa~1 YI Xuewu~2 YANG Qiang~2 QIAO Shiyan~2 (1.Institute of Animal Nutrition,College of Animal Sciences,Hunan Agricultural University,Changsha 410128,China; 2.National Key Laboratory of Animal Nutrition,China Agricultural University,Beijing 100193,China);Effects of Net Energy Level and Lysine to Net Energy Ratio on Growth Performance and Carcass Characteristics of Finishing Swines Fed Low Protein Diet[J];Chinese Journal of Animal Nutrition;2009-06
2 ZHANG Guijie1,2 YI Xuewu1,2 LU Ning1 QIAO Shiyan1,2(1. State Key Laboratory of Animal Nutrition,College of Animal Science and Technology,China Agricultural University, Beijing 100193,China; 2. National Feed Engineering Technology Research Center,Beijing 100193,China);Effects of Low Protein Diet Formulated by Net Energy System on Growth Performance and Carcass Characteristic of Growing and Finishing Pigs[J];Chinese Journal of Animal Nutrition;2010-03
3 CHEN Yanrui TIAN Xiu’e BAI Chengbin WU Ping WANG Yongjun(College of Animal Science and Technology,Northwest A&F University,Yangling 712100,China);Research on Requirements of Essential Amino Acids for Guanzhong Dairy Goat Kids at the Age of 1~30 Days[J];Chinese Journal of Animal Nutrition;2010-03
4 PAN Jun,LIU Bo,LIAN Hong-xia,GAO Teng-yun*,FU Tong,(College of Animal Husbandry and Veterinary Medicine,Henan Agricultural University);The Utilization and Nutritional Value of Spent Mushroom Substrate in Animal Feed[J];Acta Ecologiae Animalis Domastici;2010-03
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7 SHI Shu,ZHAO Guo-hua(College of Food Science,Southwest University,Chongqing 400715,China);Research progress on the functional composition of flaxseed[J];China Food Additives;2007-06
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1 YANG qiang1 ZHANG Shi-rui1 HE Xi1 YI Xue-wu2 QIAO Shi-yan2 (1.Institute of Animal Nutrition,College of Animal Sciences,Hunan Agricultural University,Changsha,410128,China;2 National Key Laboratory of Animal Nutrition,China Agricultural University,Beijing 100193,China);Effects of Low Crude Protein with Different Digestible Energy Levels on the Growth Performance and Carcass Characteristic in Fattening Pigs[J];Chinese Journal of Animal Nutrition;2008-04
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3 FANG Yun-Zhong 1, YANG Sheng 2, WU Guoyao 3 ( 1Department of Biochemistry and Molecular Biology,Beijing Institute of Radiation Medicine, Beijing 100850; 2Division of Animal Nutrition, Department of Animal Sciences, China Agricultural University, Beijing 100094; 3Department of Animal Science and Faculty of Nutrition, Texas A & M University, College Station, Texas, USA 77843);Free Radical Homeostasis[J];Progress In Physiological Sciences;2004-03
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