| 黑山羊季节性采食行为对草地生产力的响应(英文) |
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| 引用本文： | 舒健虹,王普昶,丁磊磊.黑山羊季节性采食行为对草地生产力的响应(英文)[J].农业科学与技术,2016(3):678-683. |
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| 作者姓名： | 舒健虹 王普昶 丁磊磊 |
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| 作者单位： | 贵州省草业研究所,贵州贵阳,550006 |
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| 基金项目： | Special Fund for Agro-scientific Research in the Public Interest(200903060)，Guizhou Province Agriculture Program(NY [2010]3045)，Foundation of Guizhou Province(J [2013]2153)，Special Foundation of Guizhou Academy of Agricultural Sciences ([2011]021).基金项目公益性行业(农业)科研专项(200903060)，贵州省农业攻关(黔科合 NY字[2010]3045号)，贵州省基金项目(黔科合 J [2013]2153号)，贵州省农科院专项黔农科院专项[2011]021号)。 |
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| 摘 要： | 采食通过喀斯特地区人工草地放牧对黑山羊采食行为及草地生产力的响应进行研究。结果表明:不同放牧强度黑山羊采食行为在季节间均有较大差异;以5 min为观察时间段,同一季节采食行为表现为,高强度放牧显著减少采食口数、每步吃草口数、采食速度、每口食量、日采食量(P0.05);不同季节相同放牧强度,采食行为表现为:春季显著提高采食时间、行进步数、站立时间、每口食量(P0.05),而夏秋季显著提高采食口数、每步吃草口数、采食速度(P0.05);总体而言,春季能显著提高黑山羊反刍时间、反刍食团数(P0.05),夏秋季能显著增加食团咀嚼时间和次数(P0.05)。采食采食行为参数与草地生产力关系表现为,在草地生产力处在中等水平时,采食时间和站立时间较低,采食口数、吃草频数、日采食量均较高;随草地生产力增加,山羊采食速度降低,单口采食量则增加。
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| 关 键 词： | 人工草地 黑山羊 采食行为 草地生产力 |
Interrelation between Seasonal Grazing Behavior of Guizhou Black Goat and Grassland Productivity |
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| Abstract: | In order to discover the relationship of the Guizhou black goat seasonal grazing behavior traits and grassland productivity, the varieties of grazing behavior of Guizhou black goat and its relationship with the grassland productivity under dif-ferent grazing intensity in al seasons on Guizhou karst artificial grassland were studied. Obvious differences for goat grazing behavior were found under different grazing intensity in either the same season or different seasons. The grazing behav-ior in the same season showed that it could significantly reduce the mouth eating grass within 5 minutes, each step number, feeding speed, each food intake, daily feed intake (P<0.05) under high grazing intensity. In different seasons, it could in-crease the feeding time within 5 min, marching step, standing time and intake (P<0.05) in the spring; while in the summer, it could improve intake mouth number, each mouth eating grass number and feeding rate (P<0.05). It had no obvious dif-ference in ruminant behavior parameters in the same season under different grazing intensity, but in different seasons, it can obviously increase ruminant within 5 min-utes, number of ruminant feed group (P<0.05) in the spring, and it can obviously in-crease the time and number of each food group chew (P<0.05) in the summer. The correlation analysis of main goat grazing behavior parameter showed that it had good correlation among other parameters except within 5 min walk time, each feed intake and daily feed intake (P<0.05).The relationship between goat grazing behavior parameters and grassland productivity showed that, the foraging time and standing time within 5 min were lower in the medium level of grassland productivity, while number of food intake, every step to eat grass and daily feed intake were higher;with increasing grassland productivity, goats feeding speed was reduced, but each intake was increased. |
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| Keywords: | Karst grass Guizhou black goat Grazing behavior Grassland produc-tivity |
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