The bristol studies found that cows in a herd form friendship groups of between two and four animals that spend most of their time together , and often show affection by grooming and licking each other 布里斯托大学的研究人员发现，牧群中的牛只会三五成群地建立深厚的友谊，一起度过大部分时光，他们互相照料和舔舐对方，以表达彼此间的情谊。
Joint training between dranang and naqu will be conducted as appropriate , but due to the differences of climate and animal populations , inevitably significant portions of training will need to be site specific 在合适的时候将在扎囊和那曲两个地方进行联合培训。但是由于这两个地方在气候和牧群上存在差异，不可避免有一大部分培训需在各自地点分别进行。
In monetary terms , a smaller herd of high quality animals will be worth more than a large herd of poorly producing animals , but , because herders do not usually measure their wealth in monetary terms as much as they do by numbers of animals , this is expected to be a slow progression 从经济效益上讲，一小群高产出率的牧群将比一大群低产出率的牧群价值更高，但是由于牧民通常更多的是从牧群大小而不是从牧群的实际价值来衡量他们的财富，所以这方面的进展可能会很慢。
Both the grazing frequency and different number of herd influence the species composition of bird community , the bird species increasing following the decreasing of grazing frequency ; and the biomass decreasing following the increasing of grazing frequency , the bird species increasing following the decreasing of the number of herd ; the biomass of bird community decreasing following the increasing of the number of herd the grazing disturbance influences bird community structure by two ways : one way is that grazing disturbance influences bird community directly ; the another way is that grazing disturbance influences bird community indirectly by changing vegetation structure and habitat structure 放牧频次和不同数量的牧群影响鸟类群落种类组成，随着放牧频次的减少，鸟类群落组成的物种数增加；随着放牧频次的增加，鸟类群落的生物量呈现出显著的递减。随牧群数量的减少鸟类群落组成的物种数减少；随着牧群数量的增加，鸟类群落的生物量呈现出递减的趋势。放牧干扰对鸟类群落组成影响的原因有两方面：一是牧群的直接干扰；另一个原因是放牧影响植被结构和生境结构的变化，间接对鸟类产生影响。
