【摘要】 12头杂交山羊,分别投饲玉米粉100、80和60g/kg体重,在发病前后测定血液pH值和血气参数值。研究结果表明,山羊玉米粉的致死量为100g/kg体重,80～60g/kg体重可引起山羊严重代谢性酸中毒。100g/kg体重组变化比其它各组明显（P<0.01）,在瘤胃酸中毒过程中,静脉血pH值明显降低（P<0.01）,静脉血Pco₂、Tco₂下降（P<0.05）,BB、BE、BEec、HCO₃^-、PO₂、O₂CT和O₂ST降低（P<0.01）,各组变化相一致,仅在酸中毒程度上存在差异,血pH位和血气参数值的测定对制定反刍动物瘤胃酸中毒的治疗措施有重要意义。更多还原

【Abstract】 The purpose of this experiment was to study the changes of the blood pH and gas of goats after overeating corn grains.Twelve healthy hybrid goats, ♀6 ♂6, were randomly divided into 3 groups, each including 4 goats. The 3 groups were experimentally overfed with cracked corn grains at the levels of 100g/kg of body weight （BW）, 80g/kg BW and 60g/kg BW, respectively to reproduce the disease. Before and after feeding, the parameters of blood pH and gas were estimated.The results show that the lethal dose in goats was 100g cracked corn grains per kg body weight. Doses within 60—80g/kg BW can induce severe compenated metabolic acidosis. The changes of group I was the most obvious among the 3 groups. （p<0.01）. In the process of the ruminal acidosis, venous blood pH was apparently decreased very significantly （p<0.01）. Venous Pco₂, Tco₂ decreased significantly （p<0.05）, and BB, BE, BEec, HCO₃^-, Po₂, O₂CT and O₂ST decreased in different degrees. The changes among group Ⅰ, Ⅱ and Ⅲ were not significant. The difference of changes show the degree of acidosis. The determination of the parameters of blood pH and gas is of important significance to work out the reasonable methods of treatment in ruminal acidosis.更多还原