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Nutritive Value of Grass (Feeding Value (Plant species, Plant…
Nutritive Value of Grass
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Chemical Composition
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Analysis of chemical composition will look at the Ash content (Minerals), Ether extract (Lipids, organic acids and vitamins), Crude fibre (least digestible cellulose,hemicellulose and indigestible lignin) and Nitrogen free extract (more digestible cellulose as well as sugars)
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Digestibility
Feeding Value is directly linked to the digestibility of its nutrients- although ME values, protein content etc are required for precise rationing digestibility is a good measure of quality.
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Age of Plants
As plants mature the levels of lignin, cellulose, hemicellulose and sugars increase while levels of protein and minerals decrease
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D-Value of plants in highest in spring and decreases throughout summer as the plant matures - good management can reduce how much the digestibility degrades
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