The Research Of Taurine Feeding Time Promote The Healthy In The Late Period Of Laying With Different Rearing Methods

To increase the economic benefits,modem breeding industry raises the laying hens in high density in narrow henneries.Lack of space and activities,along with the disequilibrium of proportions of ration nutrients may cause pathological changes in tissues of layer.Different factors,such as the contents of taurine,conditions and environments,have been tested to investigate the effects of physiological property and healthy conditions of the layer in this experiment.A series of evaluation systems of the farned hens5 welfare front have been formulated to solve the physiological and healthy problems during the late period of laying in layer.