. Elementary principles of agriculture; a text book for the common schools . Fig, 15S. The Plymouth Rocks are often used for mothers for Leghorns. promptly. The feed supplies to young chickens, and older ones as well, should contain ground bone or other form of mineral matter. It is not so important that they have animal food, as plenty of mineral matter and protein. The latter may be of either vegetable or animal origin. Investigations for the cause of death among young poultry showed that 15 per cent had tuberculosis, due no doubt to imperfect sanitation; 38 per cent had in- testinal trouble
. Elementary principles of agriculture; a text book for the common schools . Fig, 15S. The Plymouth Rocks are often used for mothers for Leghorns. promptly. The feed supplies to young chickens, and older ones as well, should contain ground bone or other form of mineral matter. It is not so important that they have animal food, as plenty of mineral matter and protein. The latter may be of either vegetable or animal origin. Investigations for the cause of death among young poultry showed that 15 per cent had tuberculosis, due no doubt to imperfect sanitation; 38 per cent had in- testinal troubles, and 75 per cent had diseased livers,
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