Ruminant Nutrition

Synergy Effects of Low Dietary Cation-Anion Difference with Vitamin D on Plasma Concentrations of Calcium and Its Modulators of Pregnant Goats

  • ZHU Lunqin ,
  • TIAN Xingzhou ,
  • YUAN Xin ,
  • YANG Chunhong ,
  • XIN Hailiang ,
  • ZHAO Wenjin ,
  • WU Wenxuan
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  • 1. College of Animal Science, Guizhou University, Guiyang 550025, China;
    2. Qiandongnan National Polytechnic, Kaili 556000, China;
    3. Fuxing Husbandry Co., Ltd., Xishui County, Xishui 564600, China;
    4. Institute of New Rural Development·China Center for Western Development Capacity Research, Guizhou University, Guiyang 550025, China

Received date: 2015-03-26

  Online published: 2015-09-12

Abstract

This study was conducted to evaluate the synergy effects of low dietary cation-anion difference (DCAD) with vitamin D on plasma concentrations of calcium (Ca) and its modulators of pregnant goats. Eighteen healthy pregnant goats were randomly allocated to 3 blocks with 6 replicates per group and 1 goat per replicate. Goats were fed 3 DCAD at 212.4 (control), -145.5 (Ⅰ), -145.5 mmol/kg (Ⅱ) [dry matter (DM) basis, measured values], respectively. Control group was fed a basal diet, 45 g/d MgCl2·6H2O was added in group Ⅰ on the basis of the basal diet, and 2 000 IU/d vitamin D was added in group Ⅱ on the basis of group Ⅰ. The pre-test lasted for 10 d, and the test lasted for 30 d. The results showed as follow: 1) urine pH was significantly reduced in groups Ⅰ and Ⅱ over control (P<0.05). For the growth performance measurements DM intake, average daily gain, and feed to gain ratio were not affected by dietary treatments (P>0.05). 2) Compared with control group, plasma Ca concentration was increased in groups Ⅰ (P>0.05) and Ⅱ (P<0.05); there were no significant differences in plasma phosphorus, parathormone and calcitonin concentrations for control group and groups Ⅰ and Ⅱ (P>0.05), but group Ⅱ significantly increased plasma 1,25-(OH)2VD3 concentration compared with control group and group Ⅰ (P<0.05). 3) Plasma vitamin D receptor and Ca-binding protein-D9k concentrations in group Ⅱ were significantly increased compared with control group (P<0.05). These results suggest that blood Ca homeostasis can be more available to maintain by low DCAD synergized with vitamin D under the conditions in the present study.

Cite this article

ZHU Lunqin , TIAN Xingzhou , YUAN Xin , YANG Chunhong , XIN Hailiang , ZHAO Wenjin , WU Wenxuan . Synergy Effects of Low Dietary Cation-Anion Difference with Vitamin D on Plasma Concentrations of Calcium and Its Modulators of Pregnant Goats[J]. Chinese Journal of Animal Nutrition, 2015 , 27(9) : 2742 -2748 . DOI: 10.3969/j.issn.1006-267x.2015.09.012

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