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  • Title: Food intake and growth in chickens given food in the wet form with and without access to drinking water.
    Author: Yalda AY, Forbes JM.
    Journal: Br Poult Sci; 1995 Jul; 36(3):357-69. PubMed ID: 7583370.
    Abstract:
    1. Individually caged growing chickens were offered a commercial grower food mixed with 1.5 to 2.25 times the weight of water and the effects, compared to giving the same food in air-dry form, on food intake, body weight gain and carcase composition were investigated. 2. Male broilers (24) were given either a grower food in the air-dry form with access to drinking water or the same food mixed with 2.0 parts of water (700 g water/kg of mixed food) with no drinking water from 28 to 49 d of age. From 49 to 63 d all birds were given dry food and drinking water and were then killed for carcase analysis. Food intake and weight gain were significantly increased during the wet-feeding period, as was carcase protein but not abdominal or carcase fat at the end of the experiment. 3. Five male broilers were given each of 5 dietary treatments containing 0 (control), 1.5, 1.75, 2.0 and 2.25 times added water (640, 673, 700 and 723 g water/kg) from 28 to 49 d. Food intakes, body weight gains and carcase weights were significantly increased for all water additions compared with dry food, but there were no significant differences between different water additions. 4. Female broiler chicks responded to wet feeding (700 g water/kg) in a similar manner to males and the dry matter approximate digestibility was increased from 0.65 for the dry food to 0.73 for the wet. 5. Cockerels of an egg-laying strain did not increase their intake of dietary dry matter when it was fed in the wet form (700 g water/kg), but there was a significant increase in body weight gain. 6. Male broilers were offered wet food (700 g water/kg) with or without access to drinking water. There was equal stimulation of food intake, growth and carcase weight with both wet-feeding treatments. 7. Providing food mixed with sufficient water to give a porridge-like consistency significantly increased weight gains in each of the five experiments and significantly improved food conversion efficiency in three of the five. It is not necessary to withhold drinking water in order to obtain this effect.
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