J. Anim Sci.
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

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 Jenkins, T. G.
Right arrow Articles by Ferrell, C. L.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Jenkins, T. G.
Right arrow Articles by Ferrell, C. L.

Journal of Animal Science, Vol 72, Issue 11 2787-2797, Copyright © 1994 by American Society of Animal Science

JOURNAL ARTICLE

Productivity through weaning of nine breeds of cattle under varying feed availabilities: I. Initial evaluation

T. G. Jenkins and C. L. Ferrell
Roman L. Hruska U.S. Meat Animal Research Center, USDA, Clay Center, Nebraska 68933-0166.

The effect of varying dry matter availability on the conversion of dry matter resources to weight of calf at weaning was evaluated for nine breeds of cattle; Angus, Braunvieh, Charolais, Gelbvieh, Hereford, Limousin, Red Poll, Pinzgauer, and Simmental were recorded for 5 yr. Within each breed, four cows were assigned to each of four feeding levels of dry matter intake: 58, 76, 93, or 111 g of DM/wt75. Cows remained on their assigned diet regimen throughout the study. Individual cow consumption, daily feed allowance adjusted for refusal, was recorded weekly. Production information included birth and weaning weight of the progeny, calving rate, and cow weights and condition scores. Cows were exposed to bulls of the same breed for 90 d. Reasons for cow replacement included failure to conceive in two successive years, injury, Caesarean section, chronic illness, and death. Response to dry matter intake (DMI) was curvilinear and differed among breeds (P < .10) for calving rate, calf survival, and weight of calf weaned per cow exposed. Significant differences occurred among the breeds for the linear response to DMI for cow weight and condition score. The response to DMI was curvilinear for birth weight (P < .10), but the response did not differ among breeds (P > .20). Red Poll exhibited more effective conversion at DMI less than 4,000 kg/yr, but breeds with greater genetic potential for growth and(or) milk production (Gelbvieh, Charolais, Braunvieh, Simmental, Pinzgauer, and Limousin) were more efficient at DMI greater than 6,000 kg/yr. Ranking for biological production efficiency (weight of calf weaned-cow exposed-1.kg DMI of cow-1) through weaning among breeds of cattle varied with dry matter intake.


This article has been cited by other articles:


Home page
 J ANIM SCIHome page
H. C. Freetly, J. A. Nienaber, and T. Brown-Brandl
Partitioning of energy in pregnant beef cows during nutritionally induced body weight fluctuation
J Anim Sci, February 1, 2008; 86(2): 370 - 377.
[Abstract] [Full Text] [PDF]

Home page
 J ANIM SCIHome page
T. G. Jenkins and C. L. Ferrell
Daily dry matter intake to sustain body weight of mature, nonlactating, nonpregnant cows
J Anim Sci, July 1, 2007; 85(7): 1787 - 1792.
[Abstract] [Full Text] [PDF]

Home page
 J ANIM SCIHome page
S. E. Speidel, R. M. Enns, and D. J. Garrick
Weaning weight inheritance in environments classified by maternal body weight change
J Anim Sci, March 1, 2007; 85(3): 610 - 617.
[Abstract] [Full Text] [PDF]

Home page
 J ANIM SCIHome page
A. J. Roberts, J. Klindt, and T. G. Jenkins
Effects of varying energy intake and sire breed on duration of postpartum anestrus, insulin like growth factor-1, and growth hormone in mature crossbred cows
J Anim Sci, July 1, 2005; 83(7): 1705 - 1714.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 1994 by the American Society of Animal Science.