饲粮可代谢生脂物质对生长猪生长性能和胴体品质的影响

doi:10.16431/j.cnki.1671-7236.2021.01.017

中国畜牧兽医 ›› 2021, Vol. 48 ›› Issue (1): 154-160.doi: 10.16431/j.cnki.1671-7236.2021.01.017

饲粮可代谢生脂物质对生长猪生长性能和胴体品质的影响

杨俊¹, 李强¹, 张博¹, 吕良康¹, 冯志¹, 熊奕¹, 张慧¹, 赵胜军^1,2, 任莹^1,2

1. 武汉轻工大学, 动物营养与饲料科学湖北省重点实验室, 武汉 430023;
2. 动物营养与饲料安全湖北省协同创新中心, 武汉 430023

收稿日期:2020-05-06 出版日期:2021-01-20 发布日期:2021-01-15
通讯作者: 任莹 E-mail:ranee1974@163.com
作者简介:杨俊(1997-),男,湖北大冶人,硕士生,研究方向:动物营养与代谢调控,E-mail:jy1249352808@163.com;李强(1991-),男,湖北宜城人,硕士生,研究方向:动物营养与代谢调控,E-mail:liqiang19911008@163.com
基金资助:
国家自然科学基金项目（31872373、31201833）；湖北省教育厅科学研究计划指导性项目（B2018082）；动物营养与饲料科学湖北省重点实验室开放课题（201806）

Effects of Dietary Metabolizable Lipogenic Substances on the Growth Performance and Carcass Quality of Growing Pigs

YANG Jun¹, LI Qiang¹, ZHANG Bo¹, LYU Liangkang¹, FENG Zhi¹, XIONG Yi¹, ZHANG Hui¹, ZHAO Shengjun^1,2, REN Ying^1,2

1. Hubei Key Laboratory of Animal Nutrition and Feed Science, Wuhan Polytechnic University, Wuhan 430023, China;
2. Hubei Collaborative Innovation Center for Animal Nutrition and Feed Safety, Wuhan 430023, China

Received:2020-05-06 Online:2021-01-20 Published:2021-01-15

摘要/Abstract

摘要： 本试验旨在探究可代谢生脂物质（MLS）对生长猪生长性能、胴体品质和肉质性状的影响。挑选体型相似、体重为28.15 kg±4.51 kg的18头健康杜×长×大三元杂交猪，随机分为3组，分别饲喂营养水平相同但MLS水平不同的饲粮，MLS水平分别为70.51（Ⅰ组）、68.09（Ⅱ组）和40.58 g/d（Ⅲ组），试验期28 d，测定生长猪生长性能、胴体品质和肉品质相关指标。结果表明：不同MLS水平对猪平均日采食量、平均日增重和料重比影响均不显著（P>0.05）；3组中Ⅱ组的料重比最低。3组间生长猪屠宰率、背膘厚和眼肌面积等胴体指标均无显著差异（P>0.05）。3组中，Ⅲ组的熟肉率显著低于Ⅰ和Ⅱ组（P<0.05），而其他肉品质指标如亮度值、大理石评分、滴水损失等均无显著差异（P>0.05）；屠宰后45 min及24 h肌肉pH变化差异很小（P>0.05）。综上所述，在本试验条件下，饲喂3种不同MLS水平饲粮，生长猪生长性能、胴体品质和肉质性状大部分指标差异均不显著，但对于优化配方以及今后的生产具有指导意义。

关键词: 可代谢生脂物质; 生长猪; 生长性能; 胴体品质

Abstract: This experiment was conducted to investigate the effects of metabolizable lipogenic substances (MLS) on the growth performance,carcass quality and meat quality of growing pigs.Eighteen healthy Duroc×Landrace×Yorkshire hybrid pigs with similar body size and body weight range of 28.15 kg±4.51 kg were randomly divided into three groups.The diets with the same nutritional level but different MLS levels were fed for 28 days.MLS levels were 70.51 g/d (group Ⅰ),68.09 g/d (group Ⅱ) and 40.58 g/d (group Ⅲ).The growth performance,carcass quality and meat quality of the growing pigs were measured.The results showed that the effects of different MLS levels on average daily feed intake,average daily gain and feed and gain ratio of pigs were not significant (P>0.05).Among the three groups,feed and gain ratio of group Ⅱ was the lowest.There was no significant difference in carcass indexes such as slaughter rate,backfat thickness and eye muscle area among the three groups (P>0.05).The cooked meat rate of group Ⅲ was significantly lower than groups Ⅰ and Ⅱ (P<0.05),while other meat quality indexes such as brightness value,marble score and dripping loss had no significant difference (P>0.05).There was little difference in pH between 45 minutes and 24 hours after slaughter between groups (P>0.05).In conclusion,under the conditions of this experiment,most indexes of growth performance,carcass quality and meat quality of growing pigs were not significantly different among those of three metabolizable lipogenic substances level diets,but they were of guiding significance for optimizing the formula and future production.

Key words: metabolizable lipogenic substances; growing pigs; growth performance; carcass quality

中图分类号:

S815.1

杨俊, 李强, 张博, 吕良康, 冯志, 熊奕, 张慧, 赵胜军, 任莹. 饲粮可代谢生脂物质对生长猪生长性能和胴体品质的影响[J]. 中国畜牧兽医, 2021, 48(1): 154-160.

YANG Jun, LI Qiang, ZHANG Bo, LYU Liangkang, FENG Zhi, XIONG Yi, ZHANG Hui, ZHAO Shengjun, REN Ying. Effects of Dietary Metabolizable Lipogenic Substances on the Growth Performance and Carcass Quality of Growing Pigs[J]. China Animal Husbandry and Veterinary Medicine, 2021, 48(1): 154-160.

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饲粮可代谢生脂物质对生长猪生长性能和胴体品质的影响

Effects of Dietary Metabolizable Lipogenic Substances on the Growth Performance and Carcass Quality of Growing Pigs

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