Simplified estimation of forage degradability in the rumen assuming zero-order degradation kinetics

Simplified estimation of forage degradability in the rumen assuming zero-order degradation kinetics

M. S. DHANOA , S. LÓPEZ *, R. SANDERSON 1 AND J. FRANCE 3 1 Institute of Grassland and Environmental Research (IGER)#, Plas Gogerddan, Aberystwyth, Ceredigion, SY23 3EB, UK 2 Instituto de Ganaderı́a de Montaña (IGM), Universidad de León – Consejo Superior de Investigaciones Cientı́ficas (CSIC ), Departamento de Producción Animal, Universidad de León, E-24071 León, Spain 3Centre for Nutrition Mode...

Reply – Simplified estimation of forage degradability in the rumen assuming zero-order kinetics and assumptions underlying the in situ polyester-bag technique

Estimating forage protein degradation in the rumen

Forage proteins are degraded rapidly by rumen microorganisms and therefore supply relatively small quantities of undegraded intake protein (UIP). Growing cattle with high metabolizable protein requirements and lactating beef and dairy cows respond to UIP supplementation when fed high-forage diets, even though degradable intake protein (DIP) is adequate. This observation suggests that an accurat...

In Situ Rumen Degradation Kinetics of High-protein Forage Crops in Temperate Climates

The present study was conducted to evaluate the nutritional value and in situ degradation kinetics of eight high protein forage crops: alfalfa (Medicago sativa L.), forage oat (Avena sativa L.), mixed pasture, and ryegrass (Lolium multiflorum Lam.) pasture in early vegetative stages, two forage lupins (Lupinus albus L.) in early bloom stages, sugar beet (Beta vulgaris L.) and kale (Brassica nap...

Ruminal Protein Degradation and Estimation of Rumen Microbial Protein Production

Animal agricultural production systems are major sources of nonpoint pollution affecting quality of water sources. Nitrogen has been identified as the foremost source of nonpoint water pollution  and the potential negative impacts of N have become an area of public concern. protein degradation from feed ingredients is an important factorinfluencing AA supply to the duodenum. Ruminal proteolysis...