| 摘要: |
| 【目的】研究不同处理针茅草颗粒对乌珠穆沁羊采食和反刍行为的影响，为针茅草颗粒生产原料适宜含水量、粘合剂添加量和颗粒直径等技术参数的确定提供理论依据。【方法】用不同条件(原料含水率为12%～14%，14%～16%和16%～18%；颗粒直径为3，6和8 mm；粘合剂添加量为1%，3%和5%)制备的针茅草颗粒对乌珠穆沁羊进行饲喂试验，对其采食和反刍行为进行观测。【结果】舍饲条件下，饲喂针茅草颗粒羊的平均昼夜采食时间302.18 min，昼夜总反刍时间平均为377.43 min，昼夜反刍周期19.40个、昼夜每个反刍周期持续时间22.51 min，每个反刍周期逆呕食团27.37个，昼夜反刍食团咀嚼总次数为20 672.64次，2个食团吞咽平均逆呕间隔时间5.13 s，每个食团的咀嚼次数为54.57次，咀嚼时间为60.23 s。【结论】针茅在粉碎粒度为6 mm、颗粒直径为8 mm、原料含水率为14%～16%、粘合剂添加量为3%条件下加工成草颗粒，乌珠穆沁羊最喜食。 |
| 关键词: 乌珠穆沁羊 针茅草颗粒 反刍行为 采食行为 |
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| 基金项目:国家现代牧草产业技术体系项目(CARS-35) |
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| Effect of feeding Stipa particles on grazing and ruminating behavior of Ujumqin sheep |
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SUN Lin,REN Xiu-zhen,GE Gen-tu,et al
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| Abstract: |
| 【Objective】This experiment was designed to explore the effect of feeding different Stipa particles on feed intake and ruminating behavior of Ujumqin sheep so as to provide theoretical basis for determining reasonable raw material moisture content,adhesive adding amount and particle diameter.【Method】The effect of different Stipa particles feeding treatments (moisture content 12%-14%,14%-16% and 16%-18%;particle diameter 3,6 and 8 mm;and adhesive additive amount 1%,3% and 5%) on feeding and ruminating behavior of Ujumqin sheep was observed.【Result】Under dry lot feeding condition,total average grazing time and total average ruminating time per day were 302.18 min and 377.43 min,respectively.Total ruminating cycle numbers were 19.40 with duration of each ruminant cycle of 22.51 min,and food pellet-inverse number in each ruminant cycle of 27.37.Total food pellet chewing times,the interval time between two food pellets swallowed,chewing number of each food pellet,and total chewing times of food pellet were 20 672.64,5.13 second,54.57,and 60.23 second,respectively.【Conclusion】The optimal conditions for production of Stipa particles for Ujumqin sheep were:fineness of pulverization 6 mm,particle diameter 8 mm,raw material moisture content 14%-16%,and adhesive adding amount 3%. |
| Key words: Ujumqin sheep Stipa particles ruminating behavior feed intake behavior |
