Skip to main content
padlock icon - secure page this page is secure

Effect of roll clearance of mechanical processing of corn silage harvested at the black‐line stage of maturity on carbohydrate and protein utilization in dairy cows

Buy Article:

$52.00 + tax (Refund Policy)

ABSTRACT

The experiment was conducted to evaluate the effect of roll clearance of mechanical processing of whole plant corn silage (CS) on carbohydrate and protein utilization in dairy cows. Treated CS was harvested at the black‐line stage of maturity and chopped at a theoretical length of cut (TLC) of 9.5 mm without processing or at a TLC of 19 mm with processing at a roll clearance of 1, 3 and 5 mm. Four ruminally and duodenally cannulated dry cows were assigned to a 4 × 4 Latin square design for 14‐day periods. Cows were fed diets containing 77% CS and 23% soybean meal (dry matter basis) to equalize the crude protein supply. Mechanical processing had no significant effect on dry matter intake and neutral detergent fiber digestibility. Ruminal and total tract starch digestibility and total digestible nutrients tended to be higher with processing at a roll clearance of 1 or 3 mm than at 5 mm. Microbial nitrogen efficiency in cows did not differ among all treatment groups. These results suggest that when CS is harvested at the black‐line stage of maturity, roll clearance should be 3 mm or less with a TLC of 19 mm.
No References
No Citations
No Supplementary Data
No Article Media
No Metrics

Document Type: Research Article

Affiliations: 1: Hokkaido Research Organization, Animal Research Center, Shintoku 2: Hokkaido Research Organization, Central Agricultural Experiment Station, Naganuma 3: Hokkaido Research Organization, Kamikawa Agricultural Experiment Station Tenpoku Sub Station, Hamatonbetu, Hokkaido, Japan

Publication date: March 1, 2012

  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more