动物营养学报2012，Vol.24Issue(12)：2498-2506,9.DOI:10.3969/j.issn.1006-267x.2012.12.026
饲粮消化能和可消化赖氨酸水平对长荣杂交生长猪生长性能及胴体品质的影响
Effects of Dietary Digestive Energy and Digestible Lysine Level on Growth Performance and Carcass Quality of Landrace ×Rongchang Crossbred Growing Pigs
摘要
Abstract
This study was conducted to investigate the effects of dietary digestible energy (DE) and digestible lysine/DE ratio (DLys/DE) on growth performance and carcass quality of Landrace × Rongchang crossbred growing pigs. A total of 144 healthy crossbred pigs with an initial body weight of 27. 05 kg were blocked by body weight and gender, and were allotted to 36 pens (4 pigs per pen) , and pens were assigned randomly within blocks to dietary treatments arranged in a 2 × 3 factorial design, with two levels of DE (13. 00 or 14. 50 MJ/kg) and three DLys/DE (0. 50, 0. 60, or 0. 70 g/MJ). For this experiment, these indices were determined such as growth performance, carcass trait, meat quality and serum biochemical indices. The results showed as follows: increasing DE level increased average daily gain (ADG) (P <0. 05) , carcass weight (P < 0. 05) , dressing percentage (P < 0. 05) , the contents of urea nitrogen (UN) (P < 0. 05) and low-den-sity lipoprotein cholesterol (LDL-C) (P =0. 07) in serum, and decreased feed to gain ratio (F/G) (P < 0.05) , average daily feed intake (ADFI) (P<0.05) , drip loss (P<0.05) and triglyceride (TG) content in serum (P = 0. 06). With DLys/DE increasing, loin muscle area (P <0. 05) , the contents of UN and high-density lipoprotein cholesterol (HDL-C) in serum (P<0.05) and F/G (P=0.05) were increased, and in-tramuscular fat (IMF) content (P <0. 05) and average backfat thickness (P =0. 09) were decreased. DE × DLys/DE interactions were observed in lean meat percentage, UN content and muscle pH45 min and pH24 h (P < 0. 05). Under the same amino acid pattern condition, the results suggest that dietary DE and DLys levels affect growth performance and carcass quality of growing pigs, and those for optimal performance and carcass quality are 14. 50 MJ/kg and 0. 73% , respectively.关键词
消化能/可消化赖氨酸与消化能比值/生长性能/胴体品质/长荣杂交猪Key words
DE/ DLys/DE/ growth performance/ carcass quality/ Landrace x Rongchang crossbred pigs分类
农业科技引用本文复制引用
邹田德,毛湘冰,余冰,何军,郑萍,虞洁,韩国全,黄志清,陈代文..饲粮消化能和可消化赖氨酸水平对长荣杂交生长猪生长性能及胴体品质的影响[J].动物营养学报,2012,24(12):2498-2506,9.基金项目
国家"973计划"项目(2012CB124701) （2012CB124701）
农业部公益性行业专项饲料营养价值与畜禽饲养标准研究与应用(20090300608) （20090300608）
