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 Zinn, R. A.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Zinn, R. A.

Journal of Animal Science, Vol 73, Issue 5 1246-1250, Copyright © 1995 by American Society of Animal Science

JOURNAL ARTICLE

Characteristics of digestion of linted and lint-free cottonseed in diets for feedlot cattle

R. A. Zinn
Animal Science Department, Imperial Valley Agricultural Center, University of California, El Centro 92243, USA.

Eight Holstein steers (439 kg) with "T" cannulas in the rumen and proximal duodenum were used to evaluate the characteristics of digestion of Pima cottonseed. Treatments consisted of a basal growing-finishing diet containing (DM basis) 1) 15% tapioca, 2) 15% whole linted cottonseed (Delta Pine 61, DP); 3) 15% whole lint-free cottonseed (Pima, PW), and 4) 15% ground Pima cottonseed (PG). Substitution of tapioca with cottonseed decreased (P < .05) ruminal and total tract digestion of OM (10.8 and 3.5%, respectively). Net ruminal microbial N synthesis was also lower (20.5%, P < .10) with cottonseed supplementation. The greater reductions occurred with DP and PG. Characteristics of ruminal and total tract digestion of OM and N were similar for DP and PG. Grinding Pima cottonseed increased ruminal digestion of OM (13%; P < .05) and feed N (18.1%; P < .10). Ruminal digestibility of N in DP, PW, and PG averaged 50.0, 49.4, and 59.3%, respectively. Postruminal digestion of lipid was similar (P > .10) across cottonseed treatments, averaging 76.9%. The comparative DE value of DP, PW, and PG were 4.13, 3.20, and 3.80 Mcal/kg, respectively. It is concluded that the energy value of lint-free Pima cottonseed is similar to that of linted varieties provided that it is ground before feeding. However, grinding will increase ruminal N degradability 20%. Furthermore, depending on the level of incorporation in the diet, grinding Pima cottonseed may decrease ruminal microbial growth and net ruminal protein efficiency.


This article has been cited by other articles:


Home page
 J ANIM SCIHome page
J. J. Cranston, J. D. Rivera, M. L. Galyean, M. M. Brashears, J. C. Brooks, C. E. Markham, L. J. McBeth, and C. R. Krehbiel
Effects of feeding whole cottonseed and cottonseed products on performance and carcass characteristics of finishing beef cattle
J Anim Sci, August 1, 2006; 84(8): 2186 - 2199.
[Abstract] [Full Text] [PDF]

Home page
 J DAIRY SCIHome page
R. Solomon, G. Adin, S. J. Mabjeesh, M. Nikbachat, E. Yosef, D. Ben-Ghedalia, and J. Miron
Digestibility in Lactating Cows of Diets Containing Whole Pima Treated with Sodium Hydroxide Versus Akala or Pima Cottonseed
J Dairy Sci, May 1, 2005; 88(5): 1745 - 1751.
[Abstract] [Full Text] [PDF]

Home page
 J DAIRY SCIHome page
V. R. Moreira, L. D. Satter, and B. Harding
Comparison of Conventional Linted Cottonseed and Mechanically Delinted Cottonseed in Diets for Dairy Cows
J Dairy Sci, January 1, 2004; 87(1): 131 - 138.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 1995 by the American Society of Animal Science.