生长育肥猪对环境丰富度材料的选择倾向性研究

研究舍饲圈栏条件下猪对环境丰富度材料的选择倾向性。随机抽取20头70~150日龄生长育肥猪,选择不同的啃咬、鼻拱及蹭痒材料,就生长育肥猪对各种材料的接触频次及时间等行为学指标进行研究。结果表明:生长育肥猪对各种材料的选择偏爱程度随放置时间的延续而减弱;对啃咬材料的接触频次大小和接触时间长短顺序依次为,铁链>尼龙绳>剪成条状的自行车内胎>塑料水管>细铁棍,其中对铁链的接触频次显著高于其他材料;对鼻拱材料的接触频次大小、接触时间长短依次为新鲜泥土>鹅卵石>蘑菇培养土>稻草>碎木屑>玩具塑料球;猪蹭痒时更多的选择木质蹭痒架。

Study on selection preference of finishing pigs for environmental enrichment materials

It is an important technical measure to improve the welfare of housing pigs by increasing the environmental enrichment.To investigate the selection preference of finishing pigs for different environmental enrichment materials in a housing system,some environmental enrichment materials were tested in this study.The actions of 20 finishing pigs randomly selected were video-recorded and analyzed the contact frequency and time.The result showed that the contact frequency and times between the pigs and the gnawing materials decreased with the time of a material to be provided.The sequence of the contact frequency and time was: iron chain>nylon string>striped bicycle inner tube>plastic water pipe>thin iron stick.The average contact frequency of iron chain is significantly higher than that of others.The sequence of contact frequency and time between pigs and the rooting materials is: fresh clay>cobble>incubation earth for mushroom>straw>smashed sawdust>plastic ball.The favorite ranking material for pigs is wood shelf.