JDS
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

Journal of Dairy Science Vol. 78 No. 11 2435-2451
© 1995 by American Dairy Science Association ®
This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Scott, T. A.
Right arrow Articles by Smith, T. R.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Scott, T. A.
Right arrow Articles by Smith, T. R.

Effects of Rumen-Inert Fat on Lactation, Reproduction, and Health of High Producing Holstein Herds

T. A. Scott 1, R. D. Shaver 1, L. Zepeda 1, B. Yandell 1, and T. R. Smith 1

1 Department of Dairy Science, University of Wisconsin, Madison 53706

Two hundred twenty of 443 cows freshening between June 1989 and March 1990 in five commercial Holstein herds were fed .45 kg/d of rumen-inert fat from calving until 200 DIM. Control diets were fed as TMR and contained, on average, 3.7 to 4.8% supplemental fat (DM basis). Test herds had rolling herd averages of 9300 to 13,250 kg of milk. Production of 4% FCM and milk increased 1.01 (3.3%) and 1.50 kg/d (4.6%), respectively, for primiparous cows fed additional fat. Multiparous cows from four herds demonstrated no response; multiparous cows in one herd increased production of 4% FCM by 2.88 kg/d (8.2%), milk by 2.45 kg/d (6.4%), and milk fat by .14 kg/d (10.6%) in response to additional fat. An explanation of response differences among herds for multiparous cows was not possible. For primiparous and multiparous cows, increased genetic potential increased treatment response. Increased body condition score at calving influenced treatment response of multiparous cows. Thinner cows produced more milk and less milk fat in response to additional dietary fat than did fatter cows. Most reproductive indices were unaffected by treatment. Cows receiving additional fat had lower, but nonsignificantly lower, incidences of most health disorders. Responses to rumen-inert fat by cows receiving high concentrations of dietary fat were marginal and were affected by body condition score at calving and by genetic potential.

Key Words: rumen-inert fat • lactation reproduction • health

Submitted on February 22, 1994
Accepted on November 11, 1994




This article has been cited by other articles:


Home page
 Professional Animal ScientistHome page
B. Jones, R. D. Fish, A. Martin, G. C. Duff, and R. L. Ax
Case Study: Effects of Supplemental Linoleic and Linolenic Acids on Reproduction in Holstein Cows
Professional Animal Scientist, October 1, 2008; 24(5): 500 - 505.
[Abstract] [PDF]

Home page
 J DAIRY SCIHome page
S. L. Boken, C. R. Staples, L. E. Sollenberger, T. C. Jenkins, and W. W. Thatcher
Effect of Grazing and Fat Supplementation on Production and Reproduction of Holstein Cows
J Dairy Sci, December 1, 2005; 88(12): 4258 - 4272.
[Abstract] [Full Text] [PDF]

Home page
 J ANIM SCIHome page
L. A. Appeddu, D. G. Ely, D. K. Aaron, W. P. Deweese, and E. Fink
Effects of supplementing with calcium salts of palm oil fatty acids or hydrogenated tallow on ewe milk production and twin lamb growth
J Anim Sci, September 1, 2004; 82(9): 2780 - 2789.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 1995 by the American Dairy Science Association ®.