摘要
[目的]研究灌服钙剂配方在预防奶牛产后低钙血症的效果。[方法]选择60头相近胎次试验奶牛,分为3组,每组分别有10头头胎牛、10头经产牛。对照组仅服用温水20 L,Z1组给予传统灌服钙剂配方,Z2组给予优化后灌服钙剂配方,比较不同处理对奶牛产后低钙血症的预防效果。[结果](1)头胎牛围产期血液离子钙含量:各组奶牛产前7 d、产后7 d血液离子钙含量比较无明显差异(P>0.05);与对照组、Z1组相比,Z2组产后0 h、产后12 h、产后7 d血液离子钙波动范围较小,各组之间差异显著(P<0.05)。(2)经产牛血液离子钙含量:经产牛围产期血液离子钙变化范围与头胎牛相同,Z2组产后0 h、产后12 h、产后7 d血液离子钙波动范围低于其余两组,且各组之间差异显著(P<0.05)。(3)亚临床低钙血症发病率:在产后0 h、产后0~24 h亚临床低钙血症发病率比较上,Z2组<Z1组<对照组(P<0.05)。[结论]灌服钙剂配方有助于降低奶牛产后低钙血症发生率,且优化后的钙剂配方效果更佳。
[Objective]To analyze the effect of feeding calcium supplementation on preventing postpartum hypocalcemia in dairy cows.[Method]60 dairy cows with similar parity were selected and divided into 3 groups,each group had 10 first-born cows and 10 parturient cows,respectively.The group taking only 20 L warm water was set as the control group.Group Z1 was fed traditional calcium supplementation,and group Z2 was fed optimized calcium supplementation,and the preventive effects of different treatments on postpartum hypocalcemia was compared.[Result](1)Perinatal blood ionic calcium content of first-born cows:There was no significant differences in blood ionic calcium content at 7 days before and 7 days after delivery(P>0.05).Compared with the control group and group Z1,the fluctuation range of blood ionic calcium in group Z2 was smaller at 0 h,12 h and 7 d postpartum,and the difference among all groups was significant(P<0.05).(2)Blood ionic calcium content of parturient cows:the variation range of perinatal blood ionic calcium of parturient cows was the same as that of first-born cattle,and the fluctuation range of blood ionic calcium in group Z2 at 0 h,12 h and 7 d postpartum was lower than that in the other two groups,and the difference among all groups was significant(P<0.05).(3)Incidence of subclinical hypocalcemia:compared with the incidence of subclinical hypocalcemia at 0 h and 0~24 h after delivery,Z2 group<Z1 group<control group(P<0.05).[Conclusion]Feeding Calcium supplementation can reduce the incidence of postpartum hypocalcemia in dairy cows,and the optimized calcium supplementation has better effect.
作者
周兴龙
ZHOU Xinglong(Xiuwen County Animal Disease Prevention and Control Center,Guiyang Guizhou 550200)
出处
《中国乳业》
2024年第6期59-63,共5页
China Dairy
关键词
低钙血症
钙剂配方
血液离子钙
postpartum hypocalcemia
calcium supplementation
blood ionic calcium
作者简介
周兴龙(1981-),男,贵州贵阳人,本科,兽医师,研究方向为动物疫病防控。
