Desirable characteristics of forage legumes for improving protein utilization in ruminants

Journal of Animal Science
G A Broderick

Abstract

Forages help meet the protein requirements of ruminants by providing degraded CP for microbial protein synthesis plus protein that escapes ruminal degradation. Evidence from numerous feeding studies with lactating dairy cows indicates that excessive ruminal protein degradation may be the most limiting nutritional factor in higher-quality temperature legume forages. Hence, there is interest in identifying factors that influence the rate and extent of ruminal degradation of forage proteins. Condensed tannins found in legumes are known to decrease protein degradation, either by altering the forage proteins or by inhibiting microbial proteases. Quadratic regressions of degradation rate and estimated protein escape on tannin concentration reached minimal rate (.048/h) and maximal escape (56%) at 27 g of tannic acid equivalents/kg of DM. Although most tannin-containing forages are not well-adapted to growing conditions in North America, biotechnology has been used to inject genes for tannins into adapted germplasm. The CP in red clover, which has no detectable tannins, was found to be less degradable than that in alfalfa, both in the silo and in the rumen. Small differences in protein degradability also were detected among alfalfa ge...Continue Reading

Citations

Sep 17, 2009·Journal of Veterinary Pharmacology and Therapeutics·M PérezA I Alvarez
Dec 19, 2017·Journal of Dairy Science·Franziska SchulzAndreas Susenbeth
Jan 4, 2018·Tropical Animal Health and Production·J M Castro-MontoyaE E Corea
Oct 6, 1997·Journal of Dairy Science·T R Dhiman, L D Satter
Apr 12, 2006·Journal of Dairy Science·J J Olmos Colmenero, G A Broderick
May 29, 2015·Journal of Animal Science·J J VillalbaS A Gunter
Jul 19, 2006·Journal of Veterinary Pharmacology and Therapeutics·Mivis M PulidoAna I Alvarez
Jun 16, 2015·Journal of Dairy Science·Glen A BroderickLouis E Armentano
May 26, 2016·International Journal of Molecular Sciences·Arjan Jonker, Peiqiang Yu
Nov 13, 2020·Frontiers in Plant Science·Lea Antonia FreyRoland Kölliker

❮ Previous
Next ❯

Related Concepts

Related Feeds

Bioinformatics in Biomedicine

Bioinformatics in biomedicine incorporates computer science, biology, chemistry, medicine, mathematics and statistics. Discover the latest research on bioinformatics in biomedicine here.

Birth Defects

Birth defects encompass structural and functional alterations that occur during embryonic or fetal development and are present since birth. The cause may be genetic, environmental or unknown and can result in physical and/or mental impairment. Here is the latest research on birth defects.