复合植物提取物对育肥期苏姜猪胴体性状、肌肉品质及血清指标的影响

doi:10.16431/j.cnki.1671-7236.2022.01.017

摘要/Abstract

摘要： [目的] 试验旨在探讨复合植物提取物对育肥期苏姜猪胴体性状、肌肉品质及血清指标的影响。[方法] 将200头120日龄、体重55 kg的健康苏姜猪阉公猪随机分为5组，每组4个重复，每个重复10头。对照组饲喂玉米-豆粕型基础饲粮，试验A、B、C、D组分别在基础饲粮中添加100、200、300、400 mg/kg植物提取物（由杜仲、女贞子、五味子按4：3：1混合提取，提取物的主要活性成分为绿原酸、齐墩果酸和木脂素等）。试验预试期7 d，正试期45 d。试验结束后采血并屠宰，测定胴体性状、肌肉成分、肉品质、血清生化指标、抗氧化指标及免疫指标。[结果] B和C组平均背膘厚显著低于对照组（P<0.05），B组眼肌面积显著高于对照组和A组（P<0.05）。各组间粗蛋白质、粗脂肪、粗灰分等常规肌肉成分均无显著差异（P>0.05）。试验B组大理石纹评分显著高于对照组、A和C组（P<0.05）。B和D组肉色评分显著高于对照组（P<0.05）。B组肌肉红度显著高于对照组和A组（P<0.05）。B组血清总蛋白含量显著高于对照组（P<0.05）。D组血清白蛋白含量显著高于对照组（P<0.05）。A和D组血清MDA含量显著低于对照组（P<0.05）。B组IgA含量显著高于对照组与A组（P<0.05）。其他指标各组间差异均不显著（P>0.05）。[结论] 在苏姜猪育肥期基础饲粮中添加200 mg/kg复合植物提取物有利于改善胴体性状、肌肉品质及血清生化指标，可在苏姜猪的生产中加以应用。

关键词: 复合植物提取物; 苏姜猪; 胴体性状; 肌肉品质; 血清指标

Abstract: [Objective] The purpose of this experiment was to investigate the effects of compound plant extracts on carcass traits, muscle quality indexes and serum indexes in finishing Sujiang pigs. [Method] 200 healthy Sujiang castrated boars with body mass of 55 kg of 120 days old were randomly divided into 5 groups with 4 replicates in each group and 10 pigs in each replicate. The control group was fed corn-soybean meal basal diet, and the test groups A, B, C, and D were supplemented with 100, 200, 300, and 400 mg/kg plant extracts in the basal diet, respectively. The main ingredients of the plant extracts were Eucommia, Ligustrum lucidum and Schisandra (the ratio was 4:3:1). The main active ingredients of the plant extracts were chlorogenic acid, oleanolic acid and lignans, etc. The whole trial was divided into pre-feeding period (7 d) and formal period (45 d). After the experiment, blood was collected and the experimental pigs were slaughtered. And carcass traits, muscle composition, meat quality, serum biochemical indexes, antioxidant indexes and immune indexes of finishing pigs were determined. [Result] The average backfat thickness of groups B and C were significantly lower than that of control group (P<0.05), and the loin-eye muscle area of group B was significantly higher than that of control group and group A (P<0.05). The normal muscle compositions such as crude protein, crude fat and crude ash did not show difference among the groups (P>0.05). The marbling score of group B was significantly higher than that of control group, groups A and C (P<0.05). The meat color score of groups B and D were significantly higher than that of control group (P<0.05). The a^* value of group B was significantly higher than that of control group and group A (P<0.05). Compared with control group, the total serum protein of group B was significantly increased (P<0.05). The serum albumin of group D was significantly higher than that of control group (P<0.05). The serum MDA of groups A and D were significantly lower than that of control group (P<0.05). The IgA of group B was significantly higher than that of control group and group A (P<0.05). There was no significant difference in other indicators among the groups. [Conclusion] The addition of 200 mg/kg compound plant extracts to the basic diet of Sujiang pigs during the fattening period was beneficial to improve carcass traits, muscle quality and serum indexes, and could be used in the production of Sujiang pigs.

Key words: compound plant extract; Sujiang pig; carcass trait; muscle quality; serum index

中图分类号:

S828.5

陶勇, 任善茂, 宋颜颜, 董晓君, 赵旭庭. 复合植物提取物对育肥期苏姜猪胴体性状、肌肉品质及血清指标的影响[J]. 中国畜牧兽医, 2022, 49(1): 161-168.

TAO Yong, REN Shanmao, SONG Yanyan, DONG Xiaojun, ZHAO Xuting. Effects of Compound Plant Extracts on Carcass Traits, Muscle Quality and Serum Indexes of Sujiang Pigs at Fattening Stage[J]. China Animal Husbandry and Veterinary Medicine, 2022, 49(1): 161-168.

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