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For Brahman or Santa Gertrudis crosses (tropical breeds), a medium to high roughage diet may be adequate. For animals raised on the range from weaning to 18 months, a daily live weight gain of 0.3 kg has been reported (Animal production and range research unit 1988) and this will probably decline as the animals mature.
The average dairy cow will produce 82 pounds of manure per day per 1000 pounds liveweight (Table 1). Thus, a Holstein (1400 pounds) cow produces 115 pounds of manure per day or about 21 tons per year.ANURE NUTRIENTS AVAILABLE. The average dairy cow will produce 82 pounds of manure per day per 1000 pounds liveweight (Table 1). Thus, a Holstein (1400 pounds) cow produces 115 pounds of manure per day or about 21 tons per year. Replacement heifers will average about 7 tons per year.