音乐声波对断奶仔猪生长性能及其内分泌作用机制研究

China is a big pig-breeding country,the pig farming industry occupies an important position in China's livestock.Yushan black pig superior varieties of Jiangxi local pig was included in the national protection of livestock and poultry breeds.Health environment and animal welfare seriously affect the pig's health and production performance,the sound is an important aspect of the rearing environment.In last few years,the welfare of livestock acoustic environment has become the focus of domestic and foreign studies.But the mostly concerned studies are on the surface or the macro aspects of animal behavior and growth,the action mechanism is reported rarely. .The project is to study the effects of music sound wave on the growth performance and endocrine mechanism of Yushan black pig (weaned piglets).The objective of the study is to evaluate the effect of music sound wave on the behavior,survival rate,transformation rate of diet,growth rate,carcass quality,serum biochemical parameters,serum levels of growth related hormones in weaned piglets.To explore the acoustical environment for weaned piglets to adapt to weaning stress,improve the survival rate and growth rate,to analyze the endocrine mechanism of growth performance,and to provide the basis for sound welfare and its action mechanism and Healthy Culture of Swine.

我国是一个养猪大国，生猪饲养在我国畜牧业中占有重要地位。玉山黑猪是江西地方猪优良品种，被列入国家级保护畜禽资源品种。生猪饲养环境福利严重影响猪只健康及生产性能，声音是饲养环境的重要方面。近年来，畜禽声环境福利的研究成为该领域国内外研究的热点之一，目前国内外关于声音对动物影响的研究，大都是从表面上或宏观方面研究音乐或噪声对动物行为和生长等的影响，对其作用机制的研究报道却很少。该项目以玉山黑猪（断奶仔猪）为研究对象，通过对照组和高、中、低频率音乐刺激断奶仔猪实验组的行为变化、成活率、采食量及饲料转化率、生长速度、胴体品质等性状的相关性分析，探讨有利于断奶仔猪适应断奶应激、提高成活率及生长速度等的声学环境。并通过对照组和实验组断奶仔猪血清生化指标、促生长相关激素的测定，剖析声学影响断奶仔猪生长性能的内分泌作用机理，为猪的声福利及其影响作用机制研究及健康养殖提供依据。

该项目以玉山黑猪（断奶仔猪）为研究对象，采用高、中、低频3种音乐声波的刺激实验，研究了音乐声波对仔猪行为、成活率、采食量及饲料转化率、生长速度、胴体品质等性状的影响，并通过对照组和实验组断奶仔猪血清生理生化指标、促生长相关激素的测定，进一步研究了音乐声波刺激对断奶仔猪生长性能影响的内分泌作用机理。研究数据初步表明：音乐声波对断奶仔猪生长性能指标、行为、猪肉品质、生理生化指标以及促生长相关激素等，具有不同程度的影响，其中高频音乐（梁祝）对仔猪的应激、生产性能影响等较为显著。项目研究对减少仔猪断奶应激、提高成活率及生长速度等具有重要的实际意义；对解析声波助长机理具有重要的理论意义，将为猪的声福利及其影响作用机制研究及健康养殖等提供科学依据。