不同音乐刺激方式对探索、玩耍及攻击性行为的影响

Effects of Different Ways of Music Stimulation on Exploring, Playing and Aggressive Behavior.

作者信息

Wu Mengyao, Wang Zhonghui, Zhou Sitong, Zhang Xiaolong, Zhao Yunlong, Liu Xuanning, Bai Bin, Liu Runze, Liu Honggui, Zhao Wenzhong

机构信息

College of Animal Science and Technology, Northeast Agricultural University, No. 600 Changjiang Road, Harbin 150030, China.

Key Laboratory of Swine Facilities, Ministry of Agriculture and Rural Affairs, Northeast Agricultural University, No. 600 Changjiang Road, Harbin 150030, China.

出版信息

Animals (Basel). 2025 Sep 17;15(18):2721. doi: 10.3390/ani15182721.

DOI:10.3390/ani15182721

PMID:41007965

Abstract

In the breeding of farm animals, music serves as an environmental enrichment factor that can improve the mood and welfare level of animals. However, it is not clear whether pigs receiving different modes of musical stimulation can improve cognitive performance. This study aimed to explore the extent to which different music stimulation methods affect the cognitive ability-related behaviors and neural substances of weaned piglets by providing them with various music stimuli. Fifty-four piglets were randomly divided into three groups: control group (C Group), continuous music group (CM group), and intermittent music group (IM group). The CM group received half an hour of music stimulation in the morning and afternoon of each day when the piglets were active, the IM group was given a cross-stimulation mode between the music playing time and the music pause time, and the C group had a music player installed in the enclosure, but no music was played, and the test period was 3 d. The results of the study showed the following: (1) Compared with piglets in the C group, piglets in the CM and IM groups showed more exploring behavior and less aggressive behavior ( < 0.05), while the playing behavior of piglets in the CM and IM groups was significantly higher than those in the C group ( < 0.05). (2) Compared with the CM group, the expression of cognition-related DCX, BDNF, and EGR1 genes in hippocampal tissues of the IM group was significantly higher ( < 0.05), and the expression of CREB was significantly lower ( < 0.05). (3) Western blot results showed that the protein expression of neural tissue development and cognitive-related genes (DCX and BDNF) in the hippocampal tissues of the IM group was significantly higher ( < 0.05), and the protein expression of EGR1 was highly significant ( < 0.01), compared with the CM group. These findings may indicate that intermittent music patterns can improve the cognitive abilities of weaned piglets regarding the surrounding physical and social environmental cognitive abilities.

摘要

在农场动物养殖中，音乐作为一种环境富集因素，可以改善动物的情绪和福利水平。然而，接受不同音乐刺激模式的猪是否能提高认知能力尚不清楚。本研究旨在通过为断奶仔猪提供各种音乐刺激，探讨不同音乐刺激方法对其认知能力相关行为和神经物质的影响程度。54头仔猪被随机分为三组：对照组（C组）、连续音乐组（CM组）和间歇音乐组（IM组）。CM组在仔猪每天上午和下午活动时接受半小时的音乐刺激，IM组采用音乐播放时间与音乐暂停时间交叉的刺激模式，C组在围栏中安装了音乐播放器，但不播放音乐，试验期为3天。研究结果如下：（1）与C组仔猪相比，CM组和IM组仔猪表现出更多的探索行为和更少的攻击行为（<0.05），而CM组和IM组仔猪的玩耍行为显著高于C组（<0.05）。（2）与CM组相比，IM组海马组织中与认知相关的DCX、BDNF和EGR1基因表达显著升高（<0.05），而CREB表达显著降低（<0.05）。（3）蛋白质印迹结果显示，与CM组相比，IM组海马组织中神经组织发育和认知相关基因（DCX和BDNF）的蛋白质表达显著升高（<0.05），EGR1的蛋白质表达高度显著（<0.01）。这些发现可能表明，间歇音乐模式可以提高断奶仔猪对周围物理和社会环境认知能力的认知能力。