【作者】 武晓红；

【导师】 包军；

【作者基本信息】 东北农业大学 ， 动物营养与饲料科学， 2002， 硕士

【摘要】 本文通过两个试验对在群养单饲生产条件下，不同粗纤维水平饲粮和不同饲喂次数对妊娠母猪行为规癖的影响进行了研究。 在试验(一)中，选择长白经产(均为五产)妊娠母猪9头，将其随机分为3组，每组的3头母猪饲养在同一圈舍中，每头每日分别饲喂粗纤维含量为5.67％、11.58％、16.53％的饲粮2.5kg、3.0kg、3.5kg。每日饲喂三次，每次等量饲喂。 在试验(二)中，选择长白经产(均为五产)妊娠母猪9头，将其随机分为3组，每组的3头母猪饲养在同一圈舍中，每头每日分别饲喂粗纤维含量为5.67％、11.58％、16.53％的饲粮2.5kg、3.0kg、3.5kg。每日饲喂两次，每次等量饲喂。 采用瞬时记录法，每次观察间隔2分钟。试验从母猪妊娠22日至妊娠78日进行为期56天的行为观察。 试验结果表明：通过饲喂妊娠母猪高纤维饲粮，减少了其行为规癖，即无食咀嚼、与地面有关的行为、与饲槽有关的行为及与围栏有关的行为的发生，并增加了趴卧时间，这表明饲喂妊娠母猪高纤维饲粮对其福利有益，特别是在缺乏采食替代物的环境贫乏的畜舍系统中；每日饲喂三次比每日饲喂两次对妊娠母猪行为规癖的减少更为有效，且趴卧行为较多。更多还原

【Abstract】 Two experiments were carried out to study the effect of different-fiber diets and feeding times on behaviour Stereotypies of pregnant sows which were kept in the group-breeding and individual-feeding pens.In experiment I , nine multiparous (fifth parity) landrace sows were observed. Three sows were kept in the same pen with concrete floor. The total daily intake of major nutrients except the level of fibre was calculated to be the same in the three regiments. Daily allowances were, respectively, 2.5kg, 3.0kg and 3.5kg. The sows were served three times. The quantity of each time was equal.In experiment II, nine multiparous (fifth parity) landrace sows were observed. Three sows were kept in the same pen with concrete floor. The total daily intake of major nutrients except the level of fibre was calculated to be the same in the three regiments. Daily allowances were, respectively, 2.5kg, 3.0kg and 3.5kg.The sows were served two times. The quantity of each time was equal.Behaviour was recorded by direct observation. During observation scan sampling was adopted and the time interval for each observation is two minutes.These results indicate that feeding sows diets which are high in dietary fibre may reduce behaviour Stereotypies which include vacuum chewing; trough-related activity; floor-related activity and bar-related activity and increase the time of lying down behaviour of pregnant sows. Bulky feed may have beneficial effects on the welfare of sows, especially when pregnant sows weren’t provided a foraging substrate and were kept in barren housing. Three times feeding is more effective on decreasing behaviour Stereotypies and increasing lying down behaiour of pregnant than two times feeding.更多还原