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商品猪分圈饲养,每圈就是一个人为的群体。商品猪群是不稳定的,经过一段时间的饲养,按各种不同流向挑选调出或淘汰,每圈的数量逐渐减少,如果不及时对群体进行合理调整,就会造成人力设备的浪费。这时就需将两圈或两圈以上的猪合并为一圈,这个工作就叫并圈。如果并圈不遵循一定原则,随意将几圈猪驱赶一圈则势必分为几个集团互相咬斗不休,造成长时间的骚动,而且在骚动之后几个集团在一圈内各立“山头”,划地为界,给日后的饲养管理工作造成困难,因此在分圈时,就需按品种,体重及肥瘦等条件分好,从一开始就
Commercial pigs are reared in groups and each circle is an artificial group. Commodity herds are unstable. After a period of time, the animals are bred or eliminated according to different flow directions. The number of laps per cycle is gradually reduced. If the groups are not adjusted in time, it will result in waste of manpower equipment. At this time, it is necessary to merge two or more laps into a circle. This work is called a circle. If the circle does not follow certain principles, it will inevitably divide several groups of pigs to fight each other and cause a long period of turmoil. Moreover, after the turmoil, several groups will set up a “mountain” in a circle. The division of land into boundaries will cause difficulties in the future husbandry and management work. Therefore, in the sub-circulation, it will be necessary to classify the species, body weight, and fat, etc., from the very beginning.