N degradability ruminants (k=0.06)

Effective degradability of nitrogen in the rumen. ED (%) = a + ((b*c)/(k+c)). a (%): immediately degradable fraction; b (%): potentially degradable fraction; c (h-1): hourly degradation rate; k (h-1): hourly disappearance rate. Calculated with k=0.06 h-1.

Values

Feed Perimeter As fed SD Range On DM SD Range Unit Other SD Range Unit Count Count Count
Alfalfa protein concentrate - 25 %
Alfalfa, dehydrated, protein 16-18% dry matter - 60 %
Alfalfa, dehydrated, protein 17-19% dry matter - 60 %
Alfalfa, dehydrated, protein 19-22% dry matter - 60 %
Alfalfa, dehydrated, protein 22-25% dry matter - 60 %
Alfalfa, dehydrated, protein < 16% dry matter - 60 58-64 % 4
Alfalfa, dehydrated, protein > 25% dry matter - 60 %
Apple pomace, dried - 43 % 1
Bakery byproduct - 76 %
Barley - 71 10 52-90 % 35
Barley distillers grains, dried - 48 %
Barley distillers grains, whisky production, fresh - 48 %
Barley rootlets, dried - 73 63-79 % 4
Beet pulp, dried - 52 8 34-65 % 18
Beet pulp, pressed - 60 %
Biscuit byproduct - 76 %
Brewers grains, dried - 44 16 21-79 % 26
Brewers yeast, dried - 84 %
Buckwheat hulls - 60 %
Camelina oil meal, oil > 5% - 69 %
Carob pod meal - 55 %
Cassava, starch 66-70% - 59 %
Cassava, starch 70-74% - 59 %
Cereal offal, crude fibre 5-14% - 75 %
Cereal offal, crude fibre > 14% - 75 %
Chickpea, kabuli type - 79 16 57-95 % 5
Chicory pulp, dehydrated - 52 %
Citrus pulp, dried - 66 % 1
Citrus pulp, fresh - 66 %
Cocoa hulls - 50 %
Cocoa meal, oil < 5% - 80 %
Cod liver oil - 0 %
Common bean - 74 % 1
Common vetch - 70 54-86 % 4
Copra meal, oil 5-20% - 50 13 23-66 % 14
Copra meal, oil < 5% - 50 42-70 % 3
Copra oil - 0 %
Corn gluten feed - 74 4 62-74 % 7
Corn gluten meal - 27 8 8-36 % 10
Cottonseed hulls - 16 13-20 % 2
Cottonseed meal, oil 5-20%, crude fibre 15-20% - 60 %
Cottonseed meal, oil 5-20%, crude fibre < 15% - 60 %
Cottonseed meal, oil < 5%, crude fibre 15-20% - 60 13 30-79 % 22
Cottonseed meal, oil < 5%, crude fibre < 15% - 60 58-73 % 4
Cottonseed, whole - 71 %
Cottonseed, whole, extruded - 50 %
Cowpea seed - 86 %
Faba bean, coloured flowers - 82 8 73-93 % 8
Faba bean, coloured flowers, extruded - 65 %
Faba bean, white flowers - 82 %
Fish oil, anchovy - 0 %
Fish oil, capelin - 0 %
Fish oil, herring - 0 %
Fish oil, menhaden - 0 %
Fish oil, rockfish - 0 %
Fish oil, salmon - 0 %
Fish oil, sardine - 0 %
Fodder beet, raw - 52 %
Grape pomace, dried - 22 8 10-32 % 5
Grape pulp, dried - 22 %
Grape seeds - 47 %
Grapeseed oil meal - 48 % 1
Grass, dehydrated - 60 %
Groundnut meal, oil 5-20% - 67 %
Groundnut meal, oil < 5%, crude fibre < 9% - 67 %
Groundnut meal, oil < 5%, crude fibre > 9% - 67 %
Lard - 0 %
Lentils - 86 % 1
Linseed meal, oil < 5% - 55 % 1
Linseed meal, oil > 5% - 55 9 50-74 % 8
Linseed, whole - 78 70-84 % 2
Linseed, whole, extruded - 50 %
Liquid potato feed - 65 % 1
Lupin, blue - 79 14 50-93 % 8
Lupin, white - 86 13 61-95 % 17
Lupin, white, extruded - 67 %
Maize - 44 10 25-67 % 32
Maize bran - 44 %
Maize bran, starch production - 74 % 1
Maize distillers grains and solubles, oil < 6 %, dried - 56 11 40-70 % 5
Maize distillers grains with solubles, ethanol production, dried - 56 %
Maize flour byproduct, protein 8-18%, oil 14-30% - 72 %
Maize flour byproduct, protein 8-18%, oil 5-14% - 72 % 1
Maize flour byproduct, protein 8-18%, oil <5% - 72 % 1
Maize flour, crude fibre 2-10% - 44 %
Maize flour, crude fibre < 2% - 44 %
Maize germ meal, oil 5-20% - 72 % 1
Maize germ meal, oil < 5% - 51 % 1
Maize germs - 72 %
Maize starch - 45 %
Maize, extruded - 30 %
Maize, flaked - 33 %
Maize, high moisture - 74 %
Milk powder, skimmed - 100 %
Milk powder, whole - 100 %
Millet, pearl - 40 %
Millet, proso - 81 %
Molasses, beet - 100 %
Molasses, sugarcane - 100 %
Mustard bran - 69 %
Oat groats - 81 %
Oats - 81 5 77-92 % 9
Oats, flaked - 79 %
Olive oil cake, with pits, oil < 5% - 40 %
Olive oil cake, with pits, oil > 5% - 40 27-66 % 4
Olive pulp, oil < 10% - 48 %
Olive pulp, oil > 10% - 40 %
Palm kernel meal, oil 5-20% - 43 9 27-59 % 11
Palm kernel meal, oil < 5% - 43 36-57 % 2
Palm oil - 0 %
Pea - 86 10 60-98 % 20
Pea protein concentrate - 86 %
Pea, extruded - 74 %
Potato protein concentrate - 42 %
Potato pulp, dried - 65 %
Potato tuber, dried - 74 %
Poultry fat - 0 %
Rapeseed meal, oil 5-20% - 69 % 1
Rapeseed meal, oil < 5% - 69 12 30-75 % 14
Rapeseed oil - 0 %
Rapeseed, whole - 79 %
Rapeseed, whole, extruded - 52 %
Rice bran, oil < 5%, crude fibre 11-20% - 49 %
Rice bran, oil < 5%, crude fibre 5-11% - 49 %
Rice bran, oil < 5%, crude fibre > 20% - 49 %
Rice bran, oil > 5%, crude fibre 11-20% - 68 % 1
Rice bran, oil > 5%, crude fibre 5-11% - 68 % 1
Rice bran, oil > 5%, crude fibre > 20% - 68 %
Rice hulls - 49 %
Rice shorts, oil < 5%, crude fibre < 5% - 49 %
Rice shorts, oil > 5%, crude fibre < 5% - 68 %
Rice, broken - 71 %
Rice, brown - 71 % 1
Rice, paddy - 71 6 57-81 % 12
Rye - 77 10 63-89 % 6
Sesame meal, oil > 5% - 72 % 1
Sheanut oil meal, oil > 5% - 73 %
Sorghum - 40 37-46 % 4
Soybean hulls - 55 5 48-61 % 6
Soybean meal, oil 5-20% - 63 47-83 % 2
Soybean meal, oil < 5%, 46% protein + oil - 63 56-73 % 4
Soybean meal, oil < 5%, 48% protein + oil - 63 9 51-93 % 37
Soybean meal, oil < 5%, 48% protein + oil, extruded - 59 %
Soybean meal, oil < 5%, 48% protein + oil, formaldehyde-treated - 28 %
Soybean meal, oil < 5%, 50% protein + oil - 63 % 1
Soybean molasses - 100 %
Soybean oil - 0 %
Soybean protein concentrate, protein 50-60% - 63 %
Soybean protein concentrate, protein 60-70% - 63 %
Soybean protein concentrate, protein 70-90% - 63 %
Soybean, whole, extruded - 48 39-54 % 2
Soybean, whole, flaked - 69 %
Soybean, whole, toasted - 62 % 1
Soybean, whole, toasted, flaked and expanded - 48 %
Sunflower hulls - 77 % 1
Sunflower meal, oil 5-20%, dehulled - 77 %
Sunflower meal, oil 5-20%, non dehulled - 77 %
Sunflower meal, oil < 5%, dehulled - 77 7 59-82 % 11
Sunflower meal, oil < 5%, non dehulled - 77 12 44-90 % 16
Sunflower oil - 0 %
Sunflower seed, whole - 89 29-90 % 2
Sweet potato, dried - 70 67-91 % 4
Tallow - 0 %
Tomato pulp, dehydrated - 62 59-66 % 3
Triticale - 78 %
Urea - 100 %
Vinasse, different origins - 100 %
Vinasse, from the production of glutamic acid - 100 %
Vinasse, from yeast production, protein 30 % - 100 %
Vinasse, from yeast production, protein 40% - 100 %
Vinasse, from yeast production, protein 48% - 100 %
Wheat bran - 75 6 65-87 % 17
Wheat bran from starch production - 75 %
Wheat bran, durum - 75 %
Wheat distillers grains, starch < 7%, dried - 71 13 48-86 % 13
Wheat distillers grains, starch > 7%, dried - 78 73-84 % 4
Wheat feed flour - 76 %
Wheat feed flour, durum - 76 %
Wheat flour "Gruau D", durum - 76 %
Wheat gluten - 29 %
Wheat gluten feed, type 20% starch - 76 %
Wheat gluten feed, type 30% starch - 76 %
Wheat middlings (average) - 76 8 68-87 % 6
Wheat middlings, durum - 76 %
Wheat middlings, starch 20-30% - 76 8 68-87 % 6
Wheat middlings, starch 30-40% - 76 8 68-87 % 5
Wheat middlings, starch < 20% - 76 8 68-87 % 5
Wheat middlings, starch > 40% - 76 8 68-87 % 5
Wheat straw - 60 % 1
Wheat, durum - 76 %
Wheat, soft - 76 8 58-86 % 13
Whey permeate - 100 %
Whey powder, acid - 100 %
Whey powder, sweet - 100 %
Whey, dehydrated, with added fat 4-15% - 100 %
Whey, dried, with added fat 15-30% - 100 %