Rothamsted Memoirs on Agricultural Chemistry and Physiology, Volume 2Rothamsted Experimental Station, 1893 |
Other editions - View all
Common terms and phrases
14 Days ammonia amount of food amount of increase amount of nitrogen amounts of non-nitrogenous Average Weekly Barley Barley-meal Bean and Lentil Bean meal bitum breeds carcass cent chaff Clover clover-chaff Clover-hay Cod-fish comparative composition consumed to produce Cotswold sheep Cotswolds cross-bred ewes Cross-bred Wethers Description dry food Dry Matter estimated excrements fat sheep fattening food fatty matter feeding flesh-forming food consumed genous given amount gross increase Hampshire sheep head increase in live Indian meal J. B. Lawes Leguminous Leicesters lentil meal less Limited Food live weight lots malt manure Matter consumed Mean mineral matter nitrogenous compounds nitrogenous constituents nitrogenous substance non-nitrogenous constituents non-nitrogenous substance offal Oilcake oxen Pen Pen per-centage pig per day produce 100 lbs produce a given quantity Series sewage sold alive starch stored substance consumed Sussex Downs Sussex sheep Swedes Table total dry substance Total Food turnips weeks weight of animal whilst wool
Popular passages
Page 5 - Bearing then those points in mind, which must tend to modify the indications of the actual figures in the Tables, it will appear, we think, that the coincidences in the amounts of available respiratory and fat-forming constituents, consumed by a given weight of animal within a given time, or to produce a given amount of gross increase, are much more strikingly shown throughout the numerous results represented in these Tables, than a priori we could have expected to find them. With this general uniformity,...
Page 7 - ... increase. Thus, in reading the figures of the Tables, allowance has to be made, both for those of the non-nitrogenous constituents of the food, which would probably become at once effete, and also for the different respiratory and fat-forming capacities, so...
Page 2 - ... considerably higher percentages of both fat and total dry substance. The tendency of the demand in recent years has, however, been for less excessively fat bacon than formerly. Thus far, then, it has been shown that the amounts of food, or of its various constituents consumed, both for a given live weight of animal within a given time and to produce a given amount of increase...
Page 80 - ... still, so far as they go, they are consistent in their indications. Reviewing, as a whole, the results of the Three Series of experiments with Pigs — if we consider that it is the results obtained under the subtle agency of animal life, that we are seeking to measure and express in figures — and if we also bear in mind the various sources of modification to which our actual figures must be submitted, in order to attain their true indications, we think it cannot be doubted that beyond a limit...
Page 35 - ... they yielded, the Leicesters consumed quite as much food as the cross-breds, and notably more than the Cotswolds. Leicesters, cross-breds, and Cotswolds, however, all gave a larger amount of gross increase for a given amount of food consumed than either the Hampshires or the Sussex sheep. Such were the results of the experiments as they stand on the point of the amount of food required to yield a given amount of increase. But we must not forget that the trials were not all made side by side and...
Page 33 - In conclusion, it must by no means be understood that we would in any way depreciate the value of even a somewhat liberal amount of nitrogen in food. We believe, however, that on the current views too high a relative importance is attached to it; and that it would conduce to further progress in this most important field of inquiry if the prevailing opinions on the subject were somewhat modified*.
Page 13 - ... per cent. of the whole body. These facts are of considerable interest, when it is borne in mind that in the food of the ruminant there is so large a proportion of indigestible woody fibre, and in that of the well-fed pig a comparatively large proportion of starch — the primary transformations of which are supposed to take place chiefly after leaving the stomach, and more or less throughout the intestinal canal.
Page 24 - Pigs — if we consider that it is the results obtained under the subtle agency of animal life, that we are seeking to measure and express in figures — and if we also bear in mind the various sources of modification to which our actual figures must be submitted, in order to attain their true indications, we think it cannot be doubted that beyond a limit below which few of our current fattening Pig foods are found to go, it is rather their...
Page 68 - Sheep seemed to indicate — namely, that, as our current fattening food-stuffs go, both the amount consumed by a given weight of animal, within a given time, and that required to produce a given amount of increase...
Page 31 - That the cross-breds consumed slightly more food, in relation to a given weight of animal, within a given time, than the Leicesters.