Staff Publications

  • external user (warningwarning)
  • Log in as
  • language uk
Record number 507849
Title Pre-calving feeding of rumen-protected rice bran to multiparous dairy cows improves recovery of calcaemia after calving
Author(s) Martín-Tereso López, J.; Martens, Holger; Deiner, Carolin; Laar, H. van; Hartog, Leonard den; Verstegen, Martin W.A.
Source Journal of Dairy Research 83 (2016)3. - ISSN 0022-0299 - p. 281 - 288.
DOI http://dx.doi.org/10.1017/S002202991600039X
Department(s) Animal Nutrition
WIAS
Publication type Refereed Article in a scientific journal
Publication year 2016
Keyword(s) Calcium homoeostasis - milk fever - phytic acid - rice bran - rumen protection
Abstract

Dairy cows can have different degrees of hypocalcaemia around calving. Lowering dietary Ca availability before calving can prevent it. Rice bran, treated for lower rumen degradability of phytic acid can reduce dietary availability of Ca. During 3 periods of 3 weeks, 113 multiparous cows calved in a single close-up group, which was fed first a control diet, then 140 g/kg DM of rumen-protected rice bran, and at last the control diet again. Cows joined the group 3 weeks before expected calving date and left it at calving. Blood samples were taken weekly before parturition and 0, 6 and 12 h after calving, as well as 3 and 28 d in lactation. Serum was analysed for Ca, Mg, and P. Rice bran introduction produced a transient serum Ca decrease. Rice bran feeding reduced serum P and its withdrawal reduced serum Mg. Serum Ca at calving, nadir of serum Ca and serum Ca the first 3 d after calving was higher in cows calving during rice bran feeding. Serum P decreased less and recovered faster after calving when cows had been fed rice bran. Rumen-protected rice bran reduced dietary availability of Ca and induced adaptation of Ca metabolism resulting in improved Ca and P homoeostasis at calving.

Comments
There are no comments yet. You can post the first one!
Post a comment
 
Please log in to use this service. Login as Wageningen University & Research user or guest user in upper right hand corner of this page.