动物营养学报 >

2020 , Vol. 32 >Issue 7: 3127 - 3134

DOI: https://doi.org/10.3969/j.issn.1006-267x.2020.07.022

猪营养与饲料 SWINE NUTRITION AND FEED

饲粮蛋白质水平对枣庄黑盖猪生长性能、养分表观消化率和胴体品质的影响

  • 王彦平 ,
  • 王继英 ,
  • 成建国 ,
  • 林松 ,
  • 谢晋唐 ,
  • 朱晓东 ,
  • 丁健 ,
  • 呼红梅
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  • 1. 山东省农业科学院畜牧兽医研究所, 济南 250100;
    2. 山东省畜禽疫病防治与繁育重点实验室, 济南 250100;
    3. 山东春藤食品有限公司, 枣庄 277100;
    4. 全国畜牧总站, 北京 100125
王彦平(1981-),女,山东莒县人,硕士研究生,从事动物育种与营养研究。E-mail:wangyanping03@163.com

收稿日期: 2020-02-03

  网络出版日期: 2020-07-15

基金资助

山东省现代农业产业技术体系生猪创新团队建设项目（SDAIT-08-03）；山东省农业良种工程（2019LZGC019）；山东省农业科学院农业科技创新工程（CXGC2017B02）

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Effects of Dietary Protein Level on Growth Performance, Nutrient Apparent Digestibility and Carcass Quality of Zaozhuang Heigai Pigs

  • WANG Yanping ,
  • WANG Jiying ,
  • CHENG Jianguo ,
  • LIN Song ,
  • XIE Jintang ,
  • ZHU Xiaodong ,
  • DING Jian ,
  • HU Hongmei
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  • 1. Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan 250100, China;
    2. Key Laboratory of Disease Control and Animal Breeding of Shandong Province, Jinan 250100, China;
    3. Shandong Chunteng Food Co., Ltd., Zaozhuang 277100, China;
    4. National Animal Husbandry Science, Beijing 100125, China

Received date: 2020-02-03

  Online published: 2020-07-15

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摘要

本试验旨在研究饲粮蛋白质水平对枣庄黑盖猪生长性能、养分表观消化率和胴体品质的影响。选取70日龄、平均体重为（20.48±2.54）kg的枣庄黑盖猪112头，随机分为4组，每组4个重复，每个重复7头。试验Ⅰ、Ⅱ、Ⅲ组在生长阶段（20~50 kg）分别饲喂蛋白质水平为16%、14%和12%的饲粮，在肥育阶段（51~90 kg）分别饲喂蛋白质水平为14%、12%和10%的饲粮，对照组在生长和肥育阶段均饲喂商业公司现行饲喂的自配饲粮（蛋白质水平为10%），试验期为169 d。结果表明：1）与对照组相比，试验Ⅰ组的中期体重、结束体重、生长阶段平均日增重和育肥阶段平均日增重分别增加16.83%（P<0.05）、12.71%（P<0.05）、25.57%（P<0.05）和7.20%（P>0.05），试验Ⅱ组分别增加18.08%（P<0.01）、15.37%（P<0.01）、27.29%（P<0.01）和11.75%（P<0.05），试验Ⅲ组上述指标在数值上也有所增加，但差异均未达显著水平（P>0.05）。2）与对照组相比，试验Ⅰ、Ⅱ组的粗蛋白质、钙、磷、酸性洗涤纤维和中性洗涤纤维表观消化率均显著或极显著提高（P<0.05或P<0.01）。3）与对照组相比，试验Ⅱ组的瘦肉率、眼肌面积和腿臀比例显著或极显著增加（P<0.05或P<0.01），背膘厚和肌纤维直径显著降低（P<0.05）。由此可见，枣庄黑盖猪生长和肥育阶段饲粮中适宜蛋白质水平分别为14%和12%。

关键词： 枣庄黑盖猪; 蛋白质水平; 生长性能; 胴体品质; 养分表观消化率

本文引用格式

王彦平 , 王继英 , 成建国 , 林松 , 谢晋唐 , 朱晓东 , 丁健 , 呼红梅 . 饲粮蛋白质水平对枣庄黑盖猪生长性能、养分表观消化率和胴体品质的影响[J]. 动物营养学报, 2020 , 32(7) : 3127 -3134 . DOI: 10.3969/j.issn.1006-267x.2020.07.022

Abstract

This experiment was to evaluate the effects of dietary protein level on growth performance, nutrient apparent digestibility and carcass quality of Zaozhuang Heigai pigs. A total of 112 Zaozhuang Heigai pigs at the age of 70 days with an average body weight of (20.48±2.54) kg were randomly allotted into four groups with 4 replicates per group and 7 pigs per replicate. In growing period (20 to 50 kg), the pigs of trial groups Ⅰ, Ⅱ and Ⅲ were fed diets with the protein levels of 16%, 14% and 12%, respectively. The finishing period (51 to 90 kg), the pigs of trial groups Ⅰ, Ⅱ and Ⅲ were fed diets with the protein levels of 14%, 12% and 10%, respectively. The pigs of control group were fed a diet with the protein level of 10% in growing and finishing periods. The experiment lasted for 169 days. The results showed as follows:1) compared with the control group, the middle body weight, final body weight, average daily gain of growing period and average daily gain of finishing period of pigs were increased by 16.83% (P<0.05), 12.71% (P<0.05), 25.57% (P<0.05) and 7.20% (P>0.05) in trial group Ⅰ, and were increased by 18.08% (P<0.01), 15.37% (P<0.01), 27.29% (P<0.01) and 11.75% (P<0.05) in trial group Ⅱ, respectively, but those indices in trial group Ⅲ had no significant changes, although the data of them increased. 2) Compared with the control group, the apparent digestibility of crude protein, calcium, phosphorus, acid detergent fiber (ADF) and neutral detergent fiber (NDF) was significantly increased of pigs in trial groups Ⅰ and Ⅱ (P<0.05 or P<0.01). 3) Compared with the control group, the lean meat percentage, loin eye area and the percentage of ham were significantly increased (P<0.05 or P<0.01), and the back-fat thickness and muscle fiber diameter were significantly decreased in trial group Ⅱ (P<0.05). It is concluded that the appropriate protein levels of diets for Zaozhuang Heigai pigs in growing and finishing periods are 14% and 12%, respectively.

Key words： Zaozhuang Heigai pigs; protein level; growth performance; carcass quality; apparent nutrient digestibility

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