Document Detail

Effects of days on feed, roughage sources and inclusion levels of grain in concentrate on finishing performance and carcass characteristics in cull beef cows.
MedLine Citation:
PMID:  22694329     Owner:  NLM     Status:  In-Data-Review    
An experiment was conducted with 16 Japanese Black cows to determine the effects of different days on feed (89, 208, 271 and 341 days), inclusion levels of grain in concentrate (60% vs. 40%; dry matter (DM) basis) and roughage sources (hay vs. rice straw) on finishing performance. Additional four cows were slaughtered at 0 days on feed to obtain non-fed carcass data. Maximum carcass weights were observed in cows fed for 271 days; an increase in carcass weight of only 14 kg was shown from 208 days to 271 days. The marbling score increased (P < 0.05) with days on feed. The percentage of fat in the subprimal rib linearly increased (P < 0.05) with days on feed. The percentage of lean meat was higher (P < 0.05) for cows fed rice straw than for cows fed hay as a roughage source. Increasing the days on feed decreased (P < 0.05) the yellowness of the fat. The effects of the inclusion levels of grain in concentrate on the finishing performance of cows were lower than the other two factors. In conclusion, feeding improves carcass values, but feeding over 208 days is an inefficient system of production in cows.
Masahito Sugimoto; Waka Saito; Motoki Ooi; Manabu Oikawa
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Publication Detail:
Type:  Journal Article     Date:  2011-12-08
Journal Detail:
Title:  Animal science journal = Nihon chikusan Gakkaihō     Volume:  83     ISSN:  1740-0929     ISO Abbreviation:  Anim. Sci. J.     Publication Date:  2012 Jun 
Date Detail:
Created Date:  2012-06-14     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100956805     Medline TA:  Anim Sci J     Country:  Australia    
Other Details:
Languages:  eng     Pagination:  460-8     Citation Subset:  IM    
Copyright Information:
© 2011 The Authors. Animal Science Journal © 2011 Japanese Society of Animal Science.
Hokkaido Research Organization, Animal Research Center, Shintoku, Hokkaido, Japan.
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