CIGR Handbook of Agricultural Engineering, Volume II Animal Production & Aquacultural Engineering, Part I Livestock Housing and Environment, Chapter 6 Waste Management and Recycling of Organic Matter, Part 6.2 Recycling of Organic Matter

1999 ◽  
Keyword(s):  
Organic Matter ◽  
Waste Management ◽  
Animal Production ◽  
Agricultural Engineering

The effects of rate of release of organic matter and nitrogen in the rumen on growth and metabolism of growing ewe lambs

1996 ◽  
Vol 1996 ◽  
pp. 163-163
Author(s):  
M.W. Witt ◽  
L.A. Sinclair ◽  
R.G. Wilkinson ◽  
P.J. Buttery
Keyword(s):  
Protein Synthesis ◽  
Organic Matter ◽  
Response Rate ◽  
Nitrogen Supply ◽  
Animal Production ◽  
Nitrogen Release ◽  
Microbial Protein ◽  
Ewe Lambs ◽  
Dietary Nutrients ◽  
Production Response

Formulation of diets mat are synchronous for the hourly energy and nitrogen release in the rumen increase the efficiency of microbial protein synthesis (Sinclair et al,1993). However few trials have been conducted that have investigated whether this is translated into a whole animal production response. Rate of degradation of energy and nitrogen (N) components of feeds have been classified as fast, medium or stow (Johnson, 1976). Diets containing high proportions of quickly degradable nitrogen but low amounts of quickly fermentable carbohydrate result in an uncoupling of fermentation decreasing the efficiency of use of dietary nutrients (Rooke et al., 1987). The objective of the experiment was to study the effects of synchronising the rate of energy and nitrogen supply to the rumen in diets with two rates of carbohydrate release on growth and metabolism in ewe lambs.

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