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These terms define your current search. Click the × to remove a term. Biological Sciences: organisms > animals > vertebrates > birds > chickens > cockerels × 5 items, grouped by Natural Resources, Earth and Environmental Sciences (view ungrouped items) ecology (1)    (Click to View) Effect of dietary supplementation of probiotic on the performance of F₁ crossbred (Rhode Island red male × Fayoumi female) cockerels Journal of animal physiology and animal nutrition environmental science (2)    (Click to View) Free range and deep litter poultry production systems: effect on performance, carcass yield and meat composition of cockerel chickens Tropical plant biology (Click to View) Digestibility and metabolisable energy values of dried tomato pomace for laying and meat type cockerels Animal feed science and technology natural resources (1)    (Click to View) Effect of dietary supplementation of probiotic on the performance of F₁ crossbred (Rhode Island red male × Fayoumi female) cockerels Journal of animal physiology and animal nutrition