None
wet weather, 157 value as food, 80 Crushing of grain, 138 Cutin in crude fibre, 13 Diffusion slices, 207 Digested nutrients, the supply of energy from, 42 Digestibility coefficients, 29, 279 — depression of by carbo- hydrates, 36 — depression of by oil, 38 — depression raised by pro- tein, 38 — determination of, 27 — influence of age on, 33 — trials, methods of con- ducting, 27 Digestion, artificial, 30 INDEX 399 Digestion, defective, 33 — effect of work upon, 34 — extent of, 3 1 — influence of quantity of food upon, 35 — influence of mixing of food upon, 36 — influence of species of ani- mal, 32 — of one-sided rations, 36 — processes of, 2 1 Digestive power of different breeds, 32 individuals, 33 Distillery grains, 215 — waste or slump, 2 1 5 Dried blood, 223 — brewers' grains, 2 1 5 — slumps, 217 Drought, effect on plants, 157 Dry matter, 4 Drying of samples of food- stuffs, 4 Durability of food-stuffs, 120 Dynamic energy, 57 Earth-nut cake and meal, 197 Energy from fat, 107 nitrogen-free nutrients, 106 isolated nutrients, no protein, 104, 106 starch, 107, 273 — metabolism, 48 — required for performance of work, in — sources of, 104 — total, no — units of, 48 — used in mastication and digestion, 57, 87 Ensilage {see Silage) Enzymes in digestive juices, 21 — properties of, 22 Epithelial cells in mammary gland, 307 Ether extract, 12 Excretion of waste products, 43 Exercise, benefits of, 298, 344 Fasting metabolism, 51 Fat, amount to be fed, 257, 272 — determination of increase in body, 46 — from cane sugar, 80 — from carbohydrates, 77 — from crude fibre, 80 — from protein, 64, 82 — heat value of, 70 — in food, 257 — influence on digestibility of food, 38 — influenced by food, 258 — in fasting, 54 Fats and oils, 10 carbohydrates, 77 Fattening of grown animals, 254 ruminants, 261 — ration, 256 Feeding, insufficient, 55 — loaves, manufacture of, 148 — of draught oxen, 273 — of horses, 275 — standards, 392 Feeding-stuffs, full-value, 90 Field beans, 188, 281 Fish meal, 222 Flavour of milk, 176, 346 Flesh, composition of, 46 — increase of, 44 Flour mills, by-products from, 190 Fodder damaged by fumes, 118 fungi, 118 moulds, 119 — frozen, 119 — mastication of green, 88 — plants, influence of variety, 154 of soil and manuring, 155 Food, extra required for fat animals, 267 400 INDEX Food fat, influence upon body fat, 76 influence upon secretion of milk, 321 Food for milch cattle, 338 — preparation for pigs, 305 — nutrients, 43, 83 Foods, utilisation of complete, 82 Food-stuffs, effect of injurious, 338 — that damage milk, 346 — that improve milk, 347 Frequent milking, effect of, 313 Fruit sugar (see Levulose) Full-value feeding-stuffs, 90 Gaseous products formed dur- ing digestion, 25 Gastric digestion, 23 Gastric juice, 23 Gelatine as food, 61 Glucose, 14 Glutamine, 8 Gluten feed, 206 Glycerine, 10, 11 Grain, composition of, 180 — falsification of ground, 184 — influence of soil and manur- ing, 183 — losses on storage, 131 — sprouting of, 182 Grape sugar (see Glucose) Grass, influence of age, 150 Green food, care in use of, 158 — maize, 162 Grinding grain, 1 38 Group system in experiments on cows, 319 Growth of wool, 249 H Hay, 150, 161 Hay-making, 122 Heat generated in fattening, 265 — loss of body, 52 — values, 48 Heating water for animals, 103 Hemp cake, 203 Henneberg's number, 65 Homco, or hominy feeding meal, 194 Hordenin, 214 Horse chestnuts, 190 — inferior digestive power, 3 1 Horses, feeding of, 275 — maize for, 280 — oats for, 280 Hydrochloric acid in gastric juice, 23 heated with straw, 144 Incarnate clover, 164 Incrusting material, 13, 14, 144 Indian corn (see Maize) Insufficient feeding, 55 Internal work of body, no Intestinal juice, 24 Intestine, bacteria in, 24 Investigations in groups, 240, 319 periods, 240, 317 Iron in food, 98 Java bean, poison in, 188 K Kidney vetch, 164 Kohl-rabi, 176 — leaves, 167 Labour, hard, and nitrogen ex- cretion, 105 Lactation, period of, 310 Lactic acid, action on digesti- bility, 39 and fat, 8 1 in digestion, 25 in silage, 1 27 Lactose, 14 Lambs, feeding of, 294 — weaning of, 294 Leaves and twigs as fodder, 168 Lecithine, 8, 98 INDEX 401 Leguminosae as fodder crops, 163, 165 Leguminous seeds, 187 Levulose, 14 Liebig's recipe, 145 Lignin in crude fibre, 13 Lime, effect of deficiency, 96 — in feeding-stuffs, 98 — phosphate of, 223 Linoleic acid, ^^2 Linseed, 189 — cake, 200 Lipase in gastric juice, 23 Loss of heat from body, 52 Losses during keeping of man- gels, 134 storage of grain, 131 — in making hay, 125 Lucerne, 164 Lupine plants as fodder, 165 poison in, 165 — seeds, 189 steeping, 143 M Magnesia, in animal body, 96 Maintenance ration, 58 for oxen at rest, 246 for sheep, 249 influence of body surface, 246 Maize, 186 — for horses, 186, 280 — for pigs, 187 — germ cake, 206 Malt, 182 — coombs, 213 Malting of grains, 145 Mammary gland, 307 Mangel tops, 166 Mangels, food value of, 175 — losses on storing, 1 34 — properties of, 1 74 Manyplies, 19 Marsh-gas fermentation, 25 Mashes, sweet, 145 Meadow hay, 161 — grass, 161 Meals, feeding, 192 Meat meal, 221 Metabolism, definition of, 43 Methods of investigation in milk production, 317 Milch cows, feeding of, 306 Milk, 217 — composition of, 218 — formation of, 306 — sugar, 14 — yields, 308 Milking, influence of frequency of, 311 Millet, 182 — polish, 193 Mineral hunger, 59 — substances, 1 5 metabolism of, 94 in milk, 343 Moistening of food, 140 Molasses, 208 — feeds, 210 adulteration of, 211 water in, 212 — way to use, 211 Muscular energy, sources of, 104, 106 Mustard, white, 166 N Narrow and wide rations, 232 Nitrogen equilibrium, 61 Nitrogen-free extract, 14 — nutrients as source of mus- cular energy, 106 diminish consumption of protein, 330 effect on metabolism, 69- 72, 330 effect on milk produc- tion, 329 injluence upon compo- sition of butter, 334 Nitrogenous substances (see Protein) Non-protein nitrogenous sub- stances, 7, 8 402 INDEX Non-protein nitrogenous sub- stances, effect on digesti- bility, 39 effect on protein me- tabolism, 65 effect on fat metabol- ism, 68 effect on milk produc- tion, 327 Nutrient, definition of a, 43 — material, methods of in- vestigation, 44 Nutrients, effect of, in food, 84 Nutritive ratio, 231, 257 Oat cleanings, 193 — feed, 193 — grain, composition of, 182, 185 — husks, 117 — straw, 1 7 1 Oats, 184 — for cows, 2,2,7. PRINTERS, PLYMOUTH Wei; leririry Medicine afy Medicine at 336. 