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Effect of amounts of energy and protein in the feed on performance of laying hens kept on the floor or in cages

Effect of amounts of energy and protein in the feed on performance of laying hens kept on the floor or in cages

Krmiva 25(11): 225-227

From January to October 1982 groups of laying hens were given feeds with metabolizable energy about 11 300 kJ/kg; 2 groups were kept on the floor with feeds with 15 and 17% crude protein and 2 groups were kept in cages also with 15 and 17% protein. Egg yields were 65.3, 70.5, 64.1 and 62.3%, in all groups highest in early summer. Daily intakes of feed were 115, 121, 124 and 133 g and intakes of feed per 12 eggs were 2.26, 2.07, 2.32 and 2.13 kg.

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