Effects of gelatinized anionic salts in prepartum diets of dry cows on feed intake, urinary pH, and serum parameters

摘要：

Nine multiparous cows were fed diets containing gelatinized anionic salts to determine the effects of acidified diet on dry matter intake (DMI), urinary pH, and serum parameters. Dietary cation-anion difference (DCAD) for precalving diets was approximately +10, -2, and -10 meq/100 g DM, respectively. There were no differences on DMI of cows fed the acidified diet compared with DCAD+10 (P＞0.05). Mean serum Ca concentrations were increased for cows fed the DCAD-10 diet (P＜0.0001). Urinary pH of cows fed DCAD-2 and DCAD-10 diets were decreased compared with DCAD+10 (P＜0.0001). These data indicate that a diet based on reed hay and maize silage supplemented with gelatinized anionic salts with a DCAD value -10 meq/100 g DM is suitable for prepartum dairy cows.

关键词： hypocalcaemia dietary cation-anion difference anionic salts dry cow

作者: W.Gao L.Shi P.-F.Zhang A.Yu D.-S.Wang M.-Q.Li

作者单位: College of Animal Science and Technology, Shihezi University Shihezi 832003 P.R.China

会议类型: 国际会议

会议名称: The 7tb International Symposium on the Nutrition of Herbivores(ISNH-7)(第七届国际草食动物营养研讨会)

会议地点: 北京

会议语种:英文

页码: 865-869

在线出版日期: 2007-09-16（万方平台首次上网日期，不代表论文的发表时间）