动物营养学报2017，Vol.29Issue(10)：3574-3582,9.DOI:10.3969/j.issn.1006⁃267x.2017.10.018
饲粮阴阳离子差对围产期奶牛血清生理生化指标及犊牛血清抗氧化指标的影响
Effects of Dietary Cation?Anion Difference on Physiological and Biochemical Indexes in Serum of Peripartum Dairy Cows and Anti?Oxidant Indexes in Serum of Calves
温俊 1敖长金 1杜红喜 1来光明 2曹琪娜1
作者信息
- 1. 内蒙古农业大学动物科学学院,呼和浩特 010018
- 2. 北京福乐维生物科技股份有限公司,北京 100071
- 折叠
摘要
Abstract
This experiment was conducted to evaluate the effects of dietary cation?anion difference ( DCAD ) on physiological and biochemical indexes in serum of peripartum dairy cows and anti?oxidant indexes in serum of calves. The test was adopted using single factor randomized block design. Twenty 2 to 4 parities Chinese Holstein antepartum cows ( 28 d) with similar body weight and expected date of confinement were allocated in?to 4 groups with 5 cows per group. Cows were fed 4 experimental diets with DCAD at +262. 31, +130. 26,+78.51 and +6.67 mmol/kg( dry matter basis) , respectively, and the supplemental level of anionic salt was 0, 15.0, 21.9 and 29.1 g/kg, respectively. The experiment lasted for 49 days with the first 7 days as adapta?tion period and the following 42 d as trial period. The results showed that reducing dietary DCAD of antepartum period could significantly improve serum calcium content (P<0.05), significantly decrease urine pH (P<0.05), and significantly improve postpartum serum vitamin D content of dairy cows (P<0.05), as well as significantly decrease serum malondialdehyde content of calves ( P<0.05);however, there were no significant effects on serum tumor necrosis factorα, parathyroid hormone, calcitonin and beta hydroxybutyrate contents a?mong 4 groups ( P>0.05) . Therefore, the results indicate that anionic salts supplementation in diet for antepar?tum cows can promote the serum calcium homeostasis, induce mild metabolic acidosis, so as to reduce the inci?dence of puerperal fever in cows, and improve anti?oxidant ability of their calves.关键词
阴离子盐/奶牛/围产期/产褥热/犊牛/健康Key words
anionic salt/dairy cows/peripartum/hypocalcemia/calf/health status分类
农业科技引用本文复制引用
温俊,敖长金,杜红喜,来光明,曹琪娜..饲粮阴阳离子差对围产期奶牛血清生理生化指标及犊牛血清抗氧化指标的影响[J].动物营养学报,2017,29(10):3574-3582,9.
