不同高粱水平低粗蛋白质饲粮对生长猪生长性能、肉品质和血清氨基酸浓度的影响

李思思, 朱晓彤, 黎育颖, 尹杰, 方俊, 李铁军

doi:10.3969/j.issn.1006-267x.2018.08.013

动物营养学报 >

2018 , Vol. 30 >Issue 8: 2969 - 2978

DOI: https://doi.org/10.3969/j.issn.1006-267x.2018.08.013

猪营养 Swine Nutrition

不同高粱水平低粗蛋白质饲粮对生长猪生长性能、肉品质和血清氨基酸浓度的影响

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1. 湖南农业大学生物科学技术学院, 长沙 410128;
2. 中国科学院亚热带农业生态所, 亚热带农业生态过程重点实验室, 湖南省畜禽健康养殖工程技术研究中心, 农业部中南动物营养与饲料科学观测实验站, 长沙 410125;
3. 广西师范大学生命科学学院, 桂林 541004;
4. 湖南畜禽安全生产协同创新中心, 长沙 410128

李思思(1992-),女,湖南宁乡人,硕士研究生,研究方向为动物营养。E-mail:1132885997@qq.com

收稿日期: 2018-02-06

网络出版日期: 2018-08-18

基金资助

国家973课题（2013CB127301）；Jefo Nutrition Inc合作项目；湖南省重点研发计划（2017NK2321）

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Effects of Low Crude Protein Diets with Different Sorghum Levels on Growth Performance, Meat Quality and Serum Amino Acid Concentrations of Growing Pigs

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1. College of Bioscience and Biotechnology, Hunan Agriculture University, Changsha 410128, China;
2. Key Laboratory of Agro-Ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Hunan Provincial Engineering Research Center for Healthy Livestock and Poultry Production, Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central, Ministry of Agriculture, Changsha 410125, China;
3. College of Life Science, Guangxi Normal University, Guilin 541004, China;
4. Hunan Co-Innovation Center of Animal Production Safety, Changsha 410128, China

Received date: 2018-02-06

Online published: 2018-08-18

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摘要

本试验旨在研究不同高粱水平低粗蛋白质（CP）饲粮对生长猪生长性能、肉品质和血清氨基酸浓度的影响。试验选取36头体重（30±7）kg的二元杂交（杜洛克×长白）生长猪，随机分为6个组，每组6个重复，每个重复1只猪。各组饲喂高粱和CP水平分别为0和18%（A组）、0和15%（B组）、20%和15%（C组）、50%和15%（D组）、80%和15%（E组）、50%和18%（F组）的试验饲粮。预试期6 d，正试期35 d。结果表明：1）在饲粮CP水平降低3%的条件下，A组和B组之间、D组和F组之间平均日采食量、平均日增重和料重比没有显著差异（P>0.05）。在饲粮CP水平为18%的条件下，F组平均日采食量极显著高于A组（P<0.01），平均日增重显著高于A组（P<0.05）。在饲粮CP水平为15%的条件下，D和E组平均日采食量极显著高于B组（P<0.01），E组平均日增重显著高于B组（P<0.05）。2）各组之间肉品质指标均无显著差异（P>0.05）。3）在饲粮CP水平降低3%的条件下，A组和B组之间前腔静脉、肠系膜静脉和门静脉血清氨基酸浓度差异不显著（P>0.05）；在饲粮CP水平为15%的条件下，与B组相比，C、D、E组前腔静脉、肠系膜静脉和门静脉血清中必需氨基酸组氨酸浓度均降低，而前腔静脉中非必需氨基酸脯氨酸、丝氨酸、丙氨酸浓度升高，肠系膜静脉和门静脉血清中非必需氨基酸脯氨酸、丙氨酸浓度升高。由此可见，在饲粮CP水平为15%的条件下，饲粮中高粱水平为20%~80%时均对生长猪的生长性能无不利影响，高粱可作为生长猪的能量饲料替代部分玉米。

关键词： 高粱; 生长猪; 生长性能; 肉品质; 血清氨基酸

本文引用格式

李思思, 朱晓彤, 黎育颖, 尹杰, 方俊, 李铁军 . 不同高粱水平低粗蛋白质饲粮对生长猪生长性能、肉品质和血清氨基酸浓度的影响[J]. 动物营养学报, 2018 , 30(8) : 2969 -2978 . DOI: 10.3969/j.issn.1006-267x.2018.08.013

Abstract

This study was to investigate the effects of low protein diets with different sorghum levels on growth performance, meat quality and serum amino acid concentration of growing pigs. Thirty-six crossbred (Duroc×Landrace) growing pigs with body weight of (30±7) kg were randomly divided into 6 groups with 6 replicates per group and 1 pig per replicate. Pigs in the six groups were fed the experimental diets which the sorghum and CP levels were 0 and 18% (group A), 0 and 15%(group B), 20% and 15%(group C), 50% and 15%(group D), 80% and 15%(group E), 50% and 18%(group F), respectively. The pre-experimental period lasted for 6 days, and the experimental period lasted for 35 days. The results showed as follows:1) when dietary CP level reduced 3%, there were no significant differences on the average daily feed intake, average daily gain and feed to gain ratio between group A and group B, group D and group F (P>0.05). When dietary CP level was 18%, the average daily feed intake of group F was significantly higher than that of group A (P<0.01), and the average daily gain was significantly higher than that of group A (P<0.05). When dietary CP level was 15%, the average daily feed intake of groups D and E was significantly higher than that of group B (P<0.01), the average daily gain of group E was significantly higher than that of group B (P<0.05). 2) There were no significant differences on meat quality indices among all groups (P>0.05). 3) When dietary CP level reduced 3%, there were no significant differences in the serum amino acid concentrations in anterior vena cava, mesenteric vein and portal vein between groups A and B (P>0.05). When dietary CP level was 15%, compared with group B, the serum essential amino acid histidine concentration in anterior vena cava, mesenteric vein and portal vein of groups C, D and E was decreased, the concentrations of nonessential amino acid proline, serine and alanine in anterior vena cava serum were increased, the concentrations of nonessential amino acid proline and alanine in mesenteric vein and portal vein serum were increased. In conclusion, 20% to 80% of sorghum level can replace corn as the energy raw material for growing pigs when dietary CP level is 15%.

Key words： sorghum; growing pigs; growth performance; meat quality; serum amino acids

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