Journal ArticleDOI
The nutrient requirements of ruminant livestock
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This article is published in Animal Feed Science and Technology.The article was published on 1982-06-01. It has received 1931 citations till now.read more
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Influence of dry matter intake and passage rate on microbial protein synthesis in the rumen of sheep and its estimation by cannulation and a non-invasive method
D.S. Djouvinov,N.A. Todorov +1 more
TL;DR: Comparison of the three microbial markers showed that microbial protein entering the duodenum was underestimated by DAPA only when the number of protozoa in rumen fluid was high, and it is possible to avoid invasive cannulation technique without reducing the accuracy of estimation of microbialprotein entering the small intestine.
Journal ArticleDOI
Rumen fermentation and microbial protein synthesis in cattle given intraruminal infusions of lactic acid with a grass silage based diet
Seija Jaakkola,P. Huhtanen +1 more
TL;DR: In this article, the effects of lactic acid (LA) infusion on rumen fermentation and microbial protein synthesis were investigated in a 4 × 4 Latin square experiment with four Friesian bulls with ruminal and duodenal cannulae.
Journal ArticleDOI
Economic weights for milk yield traits and herd life under various economic conditions and production quotas
B.L. Harris,A.E. Freeman +1 more
TL;DR: In this paper, a linear programming model was used to derive economic weights for yield traits and herd life from a farm system under different milk markets, protein to fat price ratios, and feed costs.
Journal ArticleDOI
Effect of supplementing napier grass with desmodium and lucerne on DM, CP and NDF intake and weight gains in dairy heifers
TL;DR: Heifers on diets D2, D3 and D4 showed significantly higher nutrient intake and LWG and the rumen DM degradation of the diets was underestimated.
Journal ArticleDOI
Magnesium in dairy cow nutrition: an overview
TL;DR: In practice, the use of manure to fertilize the soil is associated with an increased risk on grass tetany because it increases the K content of grass and a high K intake is the most important dietary factor that inhibits Mg absorption which entails the risk on Mg deficiency.