Established A Model Dairy System Of Breast Health And Research Of Hazard Analysis And Critical Control Point (HACCP)

In this study,the author determined the critical control point(PPT) , established a model dairy system of breast health , that is, large-scale dairy pasture control breast health programs and verified the production practice through hazard analysis to all aspects of dairy cattle grazing land management processes in scale grazing land.We selected grazing lands producting and managing normally(510 total population in dairy Huacheng Tangshan, including 145 calves, 280 lactating cows and dry period 85 cattle; 308 total population in Panzhuang large dairy of Zhongmu in which 100 calves, 160 lactating cows and 48 dry period cows),took 80 trials from lactating cattle ranch in Tangshan Huacheng using a random design units (paired experimental design), matchedin accordance with the incidence of mastitis of cows ( four pairs of match)and then divided randomly every four pairs of cows into test group and control group (n = 20).The test group adopted Critical Control Point technology,and the control group follow the normal way. The trial period is two weeks. In the trial period, the critical hazard control point were contraled.By the end of the trial, we analysized collected data for indicators.The results showed that:â‘ The cntrol tesult of breast inflammation in test group was raised by 30%, 50% and 35% than control group.â‘¡We can control dairy cow mastitis incidence only by controlling the critical control points in the production process under existing pasture production in the domestic conditions.Then we carried out control experiment of breast inflammation to Panzhuang large dairy mastitis of zhongmou hiddenly.The test group adopted Critical Control Point technology, and the control group follow the normal way. we analysized collected data for indicators.The results showed that: In the 1st group (test group) the incidence of occult mastitis fell 69.44 percent, 7.94 percent increased in milk yield;in the 2ndgroup (control group) the incidence of breast area increased by more than 10 percent before the trial, milk production decreased by 8.16%.By summarizing the results of previous studies and combined the results of this pilot study, we proposed the importance and urgency to establish health care systems of dairy cattle, aimed at the domestic dairy farming status.This study can be used as technical Reference by large-scale dairy farms (area).